Notes on uniformity data

Kevin Wright

Searched Google “uniformity trial data” “optimum size of plots” “Optimum Size and Shape of Plots” “plot shape and size” “field plot technique” search 2023.04.07 “uniformity trial” “optimum size of plots” “Optimum Size and Shape of Plots”

Data published on figshare?

Todo: Hansen paper

Rothamsted data


Becket not yet in public domain. Perhaps in 2024.

U. Nebr

Love, “Experimental methods in agricultural research”. In storage.

Iowa State

Parks Library Indian J of Ag Sciences, 1931-1968, S1 In2

Storage. Tropical Agriculture.

Empire Journal of Experimental Agriculture

Paper not found

Abraham, T.P. & Vachhani, M.V. 1964. Investigations on field experimental techniques with rice crop. Indian J. Agric. Sci. 34, 152-165.

Agarwal, K.N. (1973). Uniformity trial of Apple. Indian Journal of horticulture. 30:525-528. Paywall. Not available.

Agarwal, K.N. & Deshpande, M.R. 1967. Size and shape of plots and blocks in field experiments with dibbled paddy. Indian J. Agric. Sci., 37, 445-455.

Agarwal, K.N., Bavappa, K.V.A. and Khosla, R.K. (1968). A study of size and shape of plots and blocks an optimum number of experimental periods on arecanut. Indian Journal of Agricultural Sciences, 38, 444-460. Not found. Journal:

Agnihotri, V. and Asrawal, M. C. 1996. Size and shape of plots and blocks for field experiments with Eucalyptus in Shivalik Hills. Indian Journal of Forestry, 19, 74-78. Not found.

Agnihotri, Y.; AGARWAL, M. C.. Uniformity Trials for Determination of Optimum Size and Shape of Plots/Blocks for Experimentation with Acacia catechu. Indian Forester, [S.l.], p. 711-716, aug. 1995. https://doi:10.36808/if/1995/v121i8/7202. Not found.

Ali, A.A.; Ammar, S.E.M.M. Optimum plot size and shape for trials of maize. Annals of Agricultural Science, Moshtohor 36(3): 1361-1372. Not found.

Beckett, W.H.; Fletcher, S.R.B. (1929). A uniformity trial with maize. Gold Coast Dept Agric Bull 16: 222-226. Not found.

Bhatnagar, S.; Srivastava, O.P. and Lather, B. P. S. Optimum size and shape of plot for mustard. Annals of Agricultural Research. Not found.

Bischoff, K.P.; Gravois, K.A.; Schexnayder, H.P.J.; Hawkins, G.L. (2001). The effect of harvest method and plot size on the estimation of sugarcane yield. Journal American Society of Sugar Cane Technologists 21: 51-60.

Bonazzi, A. (1933). Errors in field experimentation with ratoon cane. Asoc. de Tec. Azucareros Cuba, Proc 7: 32-40. Looked hard, but could not find. Original probably in Spanish. Full publisher: Asociación de Técnicos Azucareros de Cuba.

Calzada Benza, J. 1957. El error experimental y la precision en los experimentos. Lima Peru , Estac. Expt. Agr. de La Molina , Bol. 67 , 33 pp . Not found.

Chapas, L.C. 1961. Plot size and reduction of variability in oil palm experiments. Emp Jour. Exp. Agric., 29, 212-224.

Chaudhary, G.K.; Prajapati, B.H.; Patel, J.K.; Prajapti, R.I.; Loria, J.M. (2011) Optimum size and shape of plot for field experiments on wheat under North Gujarat Condition. J.Ind.Soci.Agril.S

Chessmore, R. A. Thesis :Entitled An Evaluation of Some Field Plot Techniques for Testing Forage Grasses. Univ. of Nebr. 1952. Paywall.

CRI (1985). Report of the Coconut Research Institute for 1985. (Ed. R Mahindapala), Lunuwila, Sri Lanka.

Currence, T.M.; Krantz, F.A. (1936). The relation of plot size and shape to potato yield variations. Amer. Potato J 13, 310-13. Paywall:

Dutta, S. K., and HEATH, E. D. (1960) Size, shape, and number of plots for field experiments with tea. Not found.

Fairchild, J. A. (1928). The Comparative Value of Systems of Replications and Size and Shape of Plots in Oats Nursery Trials. Thesis, Okla. Agr. and Mech. Coll. Stillwater, Okla. 1928. Not found.

Faqir Mohammad, Tariq Mahmood Bajwa; Sohail Ahmad. (2001). Size and Shape of Plots for Wheat Yield Trials in Field Experiments. International Journal Of Agriculture & Biology, 4, 397-402.

Fisher, Alan Charles (1973). A Technique for Designing Field Experiments Using Uniformity Trial Data. North Carolina State University at Raleigh. No electronic version.

French, M. H. (1956). Minimum size of experimental plots for the assessment of pasture yield. East African Agr. and Forestry Res. Organ. Rpt. 1956.

French, M. H. Errores asociados con el uso de pequeñas parcelas de prueba en las evaluaciones de rendimiento de pastos. Agron. Trop. 10, 71-76.

Galal, H.E.; E.G.ttouh Abou. (1971). Estimation of optimum plot size and shape for Egyptian cotton yield trials. Alexandria Journal of Agricultural Research 19(2): 233-238

Gopini, D.D.; Kabaria, M.M. and Vaishnani, N.L. (1970). Size and shape of plots in field experiments on groundnut. Indian Journal of agricultural science, 40, 1004-1010. Not found.

Gosh, G.L.M. & Sanyal, A.T. 1945. Techniques of field experiments in jute. Agri. Res. Memoire 4, Indian Central Jute Comm.

Gupta, J.P. and Raghavarao, D. (1969). A uniformity trial on onions. Journal of Indian Horticulture, 7, 184-187.

Gupta, J.P. and Raghavarao, D. (1971). Optimum Size of Plots for Experiments on the Weight of Onion Bulbs. Indian Journal of Horticulture, 28, 234-236.

Gupta, S. C.; Kauchik, L. S.; Yadava T. P. (1991). A study of size and shape of experimental plots with groundnut. Indian Journal of Agricultural Research, 25, 161-166. Restricted access.

Hamdi, A.; Shokr, E. M. H.; Sedhom, S. A.; Hassanein, S. A. A. (2003). Estimation of optimum plot size and shape for lentil yield trials. Egyptian Journal of Agricultural Research, 81, 1723-1734.

Handa, D.P., Sreenath, P.R., Sastry, J.A., Rajpal, S.K. and Shukla, N.P. (1982). Size and shape of plots and blocks for experiments with oats grown for fodder. Indian Journal of agricultural sciences, 52, 466-471. Not found.

Hoshyar Chand Sharma (1991). Some observations on estimation of plot size and shape, Bartlett’s Rate Index and yield loss adjustments. Journal of Indian potato Association, 18, 9-18.

Jayaram, K.; Venkataramu, M.N.; Sunderrajan, N.; Seetharam, A. (1981) Optimum size and shape of plots and blocks for field experiments in sunflower (Helianthus annuus Linn.) Mysore Journal of Agricultural Sciences 15(4): 512-518

Jolly, A. L. (1942). Uniformity trials on estate cacao fields in Grenada, B.W.I. Tropical Agriculture, 19, 167-174. No access.

Kaushik, L.S.; Kapoor, K.; Hasija, R.C.; Tyagi, C.S. (1989). A uniformity trial on moong (Vigna radiata (L) Wilczek) Indian Journal of Agricultural Research 23(3): 138-142 Restricted access.

Khan, Mujahid. 2015. Uniformity trial in raya (Brassica juncea). M.Sc. Dissertation. Seems like paper is unlocked and should be here, but download fails.

Khurana, A., Rai, L. and Gupta, S.N. (1992). A uniformity trial on soybean (Glycine max. L.). Haryana agricultural University Journal of research, 22, 225-228.

Krantz, F. A. (1922). A Preliminary Study of Field Plot Technique in Potato Yield Test. Rept, Potato Assoc. Am. 42-44. Not found.

Kristiensen, K. and Ersboll, A.K. 1995. The use of Geostatistical methods in variety trials, where some varieties are unreplicated. Biuletyn Oceny Odmain (Cultivar Testing Bulletin), 26-27, 113-122. Not found.

Kumar, Manoj and Hasija (2002). A study of size and shape of plots with wheat. Annals of Agriculture Bio-research 7 (1), 89-93

Lajpat Rai, Gupta, S.N. and Rai, L. (1994). Optimum size and shape of plots in field experiments of soyabean (Glycine max. L.). Annals of biology Ludhiana, 10, 261-263.

Lakhera, M.L.; Singh, V.P.; Sundar, R. M. and Patel, N.M. (1995). Optimum size and shape of plot for field experiments on gram. Gujarat Agricultural University Research Journal, 21, 142-148. Paywall.

Lakshmi, K. R. and Gadewar, A.U. (1989). Optimum plot size for field trials with yams. J. of Root Crops, 15, 25-27. Paywall.

Lopes, S. J. et al. (2005). Experimental plot size in grain sorghum in different plant densities. June 2005; Pesquisa Agropecuária Brasileira 40(6):525-530.

Lu, ChunTang et al (1995). Estimation of optimum plot size and replicates number using data from rice uniformity trials. J. of Agricultural Research of China, 44, 229-241.

Love, Harry H. (1943). Experimental Methods in Agricultural Research. The Agr. Exp. Sta. of the University of Puerto Rico. Rio Piedras Puerto Rico. Has data (according to Mendez). TODO Physical copy at Univ Nebr.,contains,Experimental%20Methods%20in%20Agricultural%20Research&mode=basic

Mahalanobis, P C; Chakravorti, S C; Banerjee, E A R. 1934. Influence of shape and size of plots on the accuracy of field experiments with rice, Chinsurah, Bengal Procedings of Indian Science Congress (Bombay) Sec Agricultural Statistics 21, 71. Not found; pdf only contains abstract.

Mangat, N. S. (1984). “Optimum size and shape of plot and block in cotton field experiments.” Journal of Research-Punjab Agricultural University (India).

McHatton, T.H. 1947. The comparison of plot size in a peach experiment Proceedings American Society Hort Science 49: 18-20 No access. Not found.

Medina Urrutia, V. M. and S. Becerra Rodriguez,J. L. Macias Gonzalez (1980). Optimum size and shape of experimental plots for research studies on Mexican lemon (Citrus aurantifolia). Agricultura tec. Mex. 1980 Vol.6 No.2 pp.93-105 ref.11

Menon, T.C.M. and Tyagi, B.N. (1971). Optimum size and shape of plots in experiments with mandarin orange. Indian Journal of agricultural science, 41, 857-861. Not available.

Mortensen, M. L. (1911). The Technique of Field Experiments. In Jahresber Ver. Angew. Bot., 9, 177-187. Not found. Probably in German.

Murray, D.B. 1950. A uniformity trial with swamp rice. Tropical Agriculture No access.

Pandya, H.R.; Upadhyay, S.M>; Parmar, B.A. (2006). Analysis of uniformity trial on cotton. J. Ind. Soc. Agric. Statist, 60, 175-236.

Peiris, W. V. D. and Salgado, M. L. M. (1937). Experimental error in field experiments with coconut. Tropical Agriculture, Trinidad, 89:75-85

Pimentel Gomes, F. (1987). Novos Aspectos do Tamanho Otimo das Parcelas em Experimentos Com Plantas Arbdreas (A New Contribution on the Problem of Plot Size in Experiments with Trees). Pesq. agropec. bras., Brasilia (in press).

Rambabu; Aarwal, M.C.; Somaraj, P. and Chinnamani, S. (1980). Size and shape of plots and blocks for field trials on natural grasslands in Nilgiris hills. Indian Journal of agricultural science, 50, 598-602. Not found

Sarma, Y.R.B.; Rao, A.V.; Srinivasan, T.E (1977). Note on size and shape of plots and blocks in rice field experiments. Indian Journal of Agricultural Sciences 47(12): 639-641 Paywall.

Schuster, W; Bretschneider-Hermann, N; Zschoche, K.-H. (1984). Untersuchungen zur Feldversuchstechnik von Winterraps. Versuche zur Teilstückgrösse, Teilstückform und zur Zahl der Wiederholungen [English: Investigations into experimental designs with winterrape experiments on plot size, plot-shape and numbers of replications]. Zeitschrift für Acker- und Pflanzenbau. [Eng: Journal of agronomy and crop science]. 1984, Vol 153, Num 6, pp 446-459.

Seif, R. D., (1957). Optimum Field Plot Size and Shape for Lima Bean Yields. Unpublished Ph.D. thesis. Ithaca, New York. Cornell University. Not found. Physical copy at Cornell University. TODO

Sen, A.R. (1963). Some techniques of experimentation with cloval tea based on a uniformity trial. Emp. J. Exp. Agri., 31, 296-310.

Sethi, A.S. (1985). A modified approach to determine optimum size and shape of plots in field experiments on maize grown on terraced land. Indian Journal of Agricultural Sciences, 36, 95-99.

Sethi, A.S.; Kapur, M.L. (1995). Optimum size and shape of experimental plots for sugarcane grown under Punjab conditions Journal of Research, Punjab Agricultural University 32(4): 418-425 Paywall

Shamasundaran, K.S., Singh, K.P. and Mandhar, S.C. (2002). Standardization of optimum size and shape of plots for gerbera under naturally ventilated greenhouse condition. Indian Journal of Horticulture, 59, 431-434. Paywall.

Shu, S.C.; Park, S.H.; Yu, I.S.; Joo, Y.J.; Hong, Y.K. (1970). Studies on the optimum plot size, plot shape and number of replications in field experiments for wheat. Research Reports of the Office of Rural Development, S. Korea, Crops, 13: 95-99

Singh, R.P. (1989). Optimum plot size for yield trials on chillies Indian Journal of Horticulture 46(3): 404-406

Sreenath, P.R. (1973). Size and shape of plots and blocks in field trials with sorghum. Indian Journal of Agricultural Sciences, 43, 110-112. Not found.

Srinivasan, C.S.; George, M.V.; Subbalakshmi, V.; Amarnath, C.H. (1994). Optimum plot size for field trials with Coffea arabica cv. Cauvery (Catimor) Journal of Coffee Research 24(2): 87-96.

Srinivasan, V.R.; Biswas, S.R.; Ramachander, P.R.; Reddy, B.M.C.; Prakash, G.S.; Dass, H.C. (1982). Estimation of optimum size and shape of plots and blocks for pineapple yield trials. Singapore Journal of Primary Industries 10(2): 107-115. Paywall.

Tageldin, Mohamed hany Ahmed (1989). Effect of plot size, block size, and block shape on the performance of ryegrass-alfalfa mixtures and orchardgrass. Thesis (Ph.D)–University of Wisconsin–Madison, 1989. Not found. Physical copy at Univ Wisconsin Madison. TODO

Upadhyay, S. M., Prajapati, B.H., Raja, K.R.V. and Darji, V.B. (1994). Optimum plot size for summer paddy in the Navsari zone of Gujarat. Gujarat Agricultural University Research Journal, 19, 92-97. Not found.

Vaidyanathan, M. (1934). The method of covariance applicable to the utilization of the previous crop records for judging the improved precision of experiments. Ind. J. Agric. Sci., 4, 327-42. Not found. Has data for 24 plots. TODO

Weber, Charles Robert. 1941. Statistical analysis of a uniformity trial of soybeans with reference to plot size and shape and a comparison of efficiency of various experimental designs. Univ of Illinois. Thesis. Not found. Physical copy at Univ Illinois. TODO

Wray, William Dean (1941). Some Applications of Uniformity Trials. PhD, Cornell University. Not found. Physical copy at Cornell.

Yates, F., Vernon, A. J. and Nelson, S. W. (1964). An example of the analysis of uniformity trial data on an electronic computer. Empire Journal of Experimental Agriculture. 32 (125). Not found. Physical copy at UNL Storage. TODO

Yun, K.H.; Park, S.H.; Lee, Y.M. (1968). An estimation of optimum plot size, shape and number of replications for yield performance trials of rice. Res. Rep. Office rur. Dev, Suwon, 11: 1, 53-7. Bibl. 21

Zuhlke, Thomas Albert (1968). Uniformity Trial in Pisum Sativum for Estimating Optimum Plot Size and Shape, Replication Number, and Relative Efficiency of Lattice Designs. Not found. Physical copy at Univ Wisconsin Madison. TODO

Reviewed papers

Afonja, Biyi (1968). Analysis of a Uniformity Trial on Cassava. Experimental Agriculture, 4(2), 135-141. Reviewed. No data.

Aftab-i-Islam, M. Ashfaq, M. Idrees Ahmed. (1984) Sizes and shapes of plots for field plot experiments on wheat uniformity trial data. Pakistan Journal of Agricultural Sciences, Volume 21, Issue 3,4. Reviewed. No data.

Ahring, R. M., Morrison, R. D., & Wilhite, M. L. (1959). Uniformity Trials on Germination of Switchgrass Seed 1. Agronomy Journal, 51(12), 734-737.

Aly, A.E.; Salem, S.A.; Shalaan, M.A. (1978). Optimum plot size and shape and relative efficiency of different designs of yield trials in rice Oryza sativa L. Alexandria Journal of Agricultural Research 26(2): 317-326 Not found.

Ansari, M. A. A., and G. K. Sant (1943). A Study of Soil Heterogeneity in Relation to Size and Shape of Plots in a Wheat Field at Raya (Muhra District). Ind. J. Agr. Sci, 13, 652-658. agridat::ansari.wheat.uniformity

Arny, A. C. and H. K. Hayes. (1918) Experiments in field technic in plot tests. J. Agric. Res., 15, 251-262. Reviewed. No data.

Assis, Janilson & Sousa, Roberto & Linhares, Paulo & Cardoso, Eudes & Rodrigues, Walter & Pereira, Joaquim & Sousa, Robson & Medeiros, Aline & Silva, Neurivan & Andrade, Anderson & Gomes, Geovanna & Santos, Mateus & Alves, Lunara. (2020). Optimum plot size for field experiments in sesame. Australian Journal of Crop Science. 1957-1960. Reviewed. No data.

Awake, Girma Taye; Amsal Tarekegne; and D. G. Tanner. (2000). “Estimation of optimum plot dimensions and replication number for wheat experimentation in Ethiopia.” African crop science journal 8.1 (2000): 11-23. Reviewed. No data.

Bailey, M. A., and Trought, T. (1926). An account of experiments carried out to determine the experimental error of field trials with cotton in Egypt. Egypt Ministry of Agriculture, Technical and Science Service Bulletin 63, Min. Agriculture Egypt Technical and Science Bulletin 63. Has data. agridat::bailey.cotton.uniformity

Baker, G. A. and Huberty, MR and Veihmeyer, FJ. (1952) A uniformity trial on unirrigated barley of ten years’ duration. Agronomy Journal, 44, 267-270. agridat::baker.barley.uniformity

Baker, G. A.; and R. E. Baker (1953). Strawberry Uniformity Yield Trials. Biometrics, 9, 412-421. agridat::baker.strawberry.uniformity

Baker, G. A. and E. B. Roessler (1957). Implications of a uniformity trial with small plots of wheat. Hilgardia, 27, 183-188. agridat::baker.wheat.uniformity

Bakke, Olaf Andreas. (1988). Tamanho e forma ótimos de parcelas em delineamentos experimentais. Dissertation. Escola Superior de Agricultura Luiz de Queiroz. Used Gomez rice uniformity.

Bancroft, T. A. et a1., (1948). Size and Shape of Plots and Distribution of Plot Yield for Field Experiments with Peanuts. Alabama Agricultural Experiment Station Progress Report, sec. 39. Table 4, page 6. agridat::bancroft.peanut.uniformity

Barber, Clarence W. (1914). Note on the Influence of Shape and Size of Plot in Tests of Varieties of Grain. Maine Agr. Expt. Sta. Bul. 226:76-84. 1914. Reviewed. No data.

Batchelor, L. D.; and H. S. Reed. (1918). Relation of the variability of yields of fruit trees to the accuracy of field trials. J. Agric. Res, 12, 245–283. agridat::batchelor.uniformity

Bayoumi, Tarek Youssef; S El-Demardash. Effect of water deficit on soil variability, plot size, shape and number of replications for chickpea. Reviewed. No data.

Beard, J.S. (1954). Investigations into experimental plot technique with black wattle. Empire Forestry Review, 33, 158-171. Reviewed. No data.

Beattie, J. H. and Victor R. Boswell and E. T. Batten. (1936). Pot and plant variation in Virginia Peanuts. Proceedings Of The American Society For Horticultural Science, 34. Reviewed. No data.

Bhatt, Hitesh M. (1998). Plot technique in Potato. AAU, Anand. Reviewed. No data.

Bose, R. D. (1935). Some soil heterogeneity trials at Pusa and the size and shape of experimental plots. Ind. J. Agric. Sci., 5, 579-608. Table 1 (p. 585), Table 4 (p. 589), Table 5 (p. 590). agridat::bose.multi.uniformity

Bose, S. S.; Ganguli, P. M., and Mahalanobis, P. C. The frequency distribution of plot yields and the optimum size of plots in a uniformity trial with rice in Assam. Indian J. Agric. Sci., 1936, 6 part 5, pp. 1107-22. Reviewed. No data.

Bose, S. S.; Khanna, K L; Mahalanobis, P C Note on the optimum shape and size of plots for sugarcane experiments in Bihar. India Journal of Agricultural Science 9, 807-816 Reviewed. No data.

Boyhan, George E.; David B. Langston; Albert C. Purvis; C. Randell Hill. (2003). Research to determine suitable plot size and the number of replications in the field trials of sugarbeet. J. Amer. Soc. Hort. Sci., 128, 409-424. Reviewed. No data. Compared Hatheway’s method with Cochran and Cox’s method, the latter gave smaller number of plots.

Boyhan, George E., David B. Langston, Albert C. Purvis, C. Randell Hill. (2003). Optimum plot size and number of replications with short-day onions for yield, seedstem formation, number of doubles, and incidence of foliar diseases. J. Amer. Soc. Hort. Sci., 128, 409-424. Reviewed. No data.

Boyhan, George E. (2013). Optimum Plot Size and Number of Replications for Determining Watermelon Yield, Fruit Size, Fruit Firmness, and Soluble Solids. HortScience, 48, 1200-1208. Reviewed. No data.

Bradley, P. L. (1941). A study of the variation in productivity over a number of fixed plots in field 2. Dissertation: The University of the West Indies. Appendix 1a, 1b, 1c, 1d. agridat::bardley.multi.uniformity

Brewer, A. C. and R. Mead (1986). Continuous Second Order Models of Spatial Variation with Application to the Efficiency of Field Crop Experiments. Journal of the Royal Statistical Society. Series A (General), 149(4), 314–348. See page 325. Reviewed. No data. Used StVincent cotton data found at Rothamsted. agridat::hutchinson.cotton.uniformity

Brim, C. A. and D. D. Mason. (1959). Estimates of Optimum Plot Size for soybean Yield Trials. Agron. Journal, 51: pp. 331-335. Reviewed. No data.

Brown, A.R. and Morris, H.D. (1967), Estimation of Optimum Plot Size and Shape for Grain Sorghum Yield Trials. Agron. J., 59: 576-577. Reviewed. No data.

Chaves, L. J.; J. B. Miranda Filho (1992). Plot size for progeny selection in maize (Zea maysL.). Theoretical and Applied Genetics, 84, 963–970. Reviewed. No data.

Cheesman, E. E., and Pound, F. J. Uniformity trials on Cacao. Trop. Agric., 9, 277-88. Reviweed. No data.

Christidis, Basil G (1931). The importance of the shape of plots in field experimentation. The Journal of Agricultural Science, 21, 14-37. Table VI, p. 28. agridat::christidis.wheat.uniformity

Christidis, B. G. (1939). Variability of Plots of Various Shapes as Affected by Plot Orientation. Empire Journal of Experimental Agriculture 7: 330-342. Table 1. agridat::christidis.cotton.uniformity

G. Peter Y. Clarke and Katia T. Steanova. (2011). Optimal design for early-generation plant-breeding trials with unreplicated or partially replicated test lines. Aust. N. Z. Jour. of Stat., 53, 461-480. Reviewed. No data.

Collison, R. C. and J. D. Harlan. Technical bulletin No 194. Some relationships between soil properties and performance of Baldwin and Greening Apple Trees. New York State Agricultural Experiment Station Reviewed. Has data for a few trees.

Collison, R. C. and J. D. Harlan. Technical bulletin No 126. Annual variation in apple yields - a possible cause. New York State Agricultural Experiment Station Reviewed. No data.

Conners, Helen Elizabeth (1951). Field plot techniques for sweet potatoes obtained from uniformity trial data. Master’s Thesis, Iowa State University. No digital copy available. Reviewed. No data.

Coombs, G. E. and J. Grantham (1916). Field Experiments and the Interpretation of their results. The Agriculture Bulletin of the Federated Malay States, No 7. agridat::coombs.rice.uniformity

Cordeiro, Célia Maria Torres, João Eustáquio Cabral de Miranda, and Jarbas Campos. “Tamanho de parcelas e número de repetições em experimento de batatas.” Pesquisa Agropecuária Brasileira 17.9 (1982): 1341-1348. Reviewed. No data.

Crews, Julian W., Jones, G.L. and Mason, D.D. (1963). Field Plot Technique Studies with Flue-Cured Tobacco. I. Optimum Plot Size and Shape. Agron. J., 55: 197-199. Reviewed. No data.

Damor, Bhavika. (2019). Comparison of uniformity trial data with experimental data for plot technique. Department of Agricultural Statistics, B. A. College of Agriculture, Anand Agricultural University. Reviewed. Not used. Has data for 3 uniformity trials, but the data look strange. In Appendix I, there are 500 numbers but only about 9 of them have “4” in the hundredths place. We would expect to see 50. It could be that the data were collected in non-kg weights and then converted to kg. In Appendix III, there are some plots along the left edge that are measured to 3 decimals (0.993, 0.631), but most of the field is measured to 2 decimals. Weird.

da Silva, Enedino Correa. (1974). Estudo do tamanho e forma de parcelas para experimentos de soja (Plot size and shape for soybean yield trials). Pesquisa Agropecuaria Brasileira, Serie Agronomia, 9, 49-59. Table 3, page 52-53. agridat::dasilva.soybean.uniformity

da Silva, Willerson Custódio; Mário Puiatti; Paulo Roberto Cecon; Leandro Roberto de Macedo; Tocio Sediyama. (2019) Estimation of optimum experimental plot size for taro culture. Ciência Rural, Santa Maria, v.49 Reviewed. No data.

da Silva, Luiz Fernando de Oliveira; Katia Alves Campos; Augusto Ramalho de Morais; Franciane Diniz Cogo; Carolina Ruiz Zambon. Optimal plot size for experiments with radish. Revista Ceres 59(5):624-629 Reviewed. No data.

de Assis, J. P., de Sousa, R. P., Rodrigues, W. M., Linhares, P. C. F., Cardoso, E. de A., Soares Pereira, M. F., Araújo Paula, J. A. de, & Oliveira, A. da M. (2019). Optimum Size and Shape of Experimental Units for Cassava Cropping. Journal of Experimental Agriculture International, 31(6), 1–10. Reviewed. No data.

de Sousa, Roberto Pequeno and Assis, Janilson Pinheiro de and Rodrigues, Walter Martins and Linhares, Paulo César Ferreira and Cardoso, Eudes de Almeida and Pereira, Maria Francisca Soares and Paula, José Aluisio de Araújo (2018). Optimum Plot Size for Experimental Cassava Production. Journal of Agricultural Science, 10, 231-237. Reviewed. No data.

de Sousa, Roberto Pequeno; Paulo Sérgio Lima e Silva; Janilson Pinheiro de Assis; Paulo Igor Barbosa e Silva; Júlio César DoVale. 2015. Optimum plot size for experiments with the sunflower. Revista Ciencia Agronomica, 46, 170-175. Reviewed. No data. Precision increased up to plot sizes about 5 m^2.

Davies, J. Griffiths (1931). The Experimental Error of the Yield from Small Plots of Natural Pasture. Council for Scientific and Industrial Research (Aust.) Bulletin 48. Table 1. agridat::davies.pasture.uniformity

Day, James Westbay (1916). The relation of size, shape, and number of replications of plats to probable error in field experimentation. Dissertation, University of Missouri. Table 1, page 22. agridat::day.wheat.uniformity

Dorph-Petersen, K. 1949. Parcelfordeling i markforsog. Tidsskrift for Planteavl. 52, 111-175 Reviewed. No data. Did not see anything that looked like a field of 12x43 plots. Mentioned in Kristensen (2003).

Draper, Arlen D. (1959). Optimum plot size and shape for safflower yield tests. Dissertation. University of Arizona. agridat::draper.safflower.uniformity

Eden, T. and E. J. Maskell. (1928). The influence of soil heterogeneity on the growth and yield of successive crops. Jour of Agricultural Science, 18, 163-185. agridat::sawyer.multi.uniformity

Eden, T. (1931). Studies in the yield of tea. 1. The experimental errors of field experiments with tea. Agricultural Science, 21, 547-573. agridat::eden.tea.uniformity

Elliott, F. C., Darroch, J.G. and Wang, H.L. (1952). Uniformity trials with spring wheat. Agronomy Journal, 44, 524-528. Reviewed. No data.

England, F. (1968). Non-sward densities for the assessment of yield in Italian ryegrass: II. Convenient plot and block size and shape. The Journal of Agricultural Science, 70(02), 105. Reviewed. No data.

Ersboll, Annette. Spatial and Temporal Variations with Applications in Agriculture. “Models in action”, Proceedings of a seminar series 1995/1996. Reviewed. No data.

Facco, Giovani; Cargnelutti Filho Alberto; Mendonça Alves Bruna; et. al. (2017). Basic experimental unit and plot sizes with the method of maximum curvature of the coefficient of variation in sunn hemp. African journal of agricultural research 12(6):415-423 Reviewed. No data.

Faria, Glaucia Amorim and Lopes, Beatriz Garcia and Peixoto, Ana Patrícia Bastos and Ferreira, Antonio Flávio Arruda and Maltoni, Kátia Luciene and Pigari, Lucas Bernardo (2020). Experimental plot size of passion fruit. Revista Brasileira de Fruticultura, 42. Reviewed. No data.

Filho, Alberto; Cargnelutti; Marcos Toebe; Cláudia Burin; André Luis Fick; Gabriele Casarotto. (2011). Plot sizes and uniformity assays in turnip. Ciência Rural 41.9 (2011): 1517-1525. Reviewed. No data.

Filho, Alberto Cargnelutti; Marcos Vinícius Loregian, Gabriel Elias Dumke, Felipe Manfio Somavilla, Samanta Luiza da Costa, Lucas Fillipin Osmari, Bruno Fillipin Osmari (2021). Optimal plot size in buckwheat. Reviewed. No data

Filho, Alberto Cargnelutti, and Ismael Mario Marcio Neu, and Valeria Escaio Bubans, and Felipe Manfio Somafilla, and Bruno Fillipin Osmari. (2022). Method for estimating the optimal plot size for Black Oat, Common Vetch, and Forage Turnip intercropping. Reviewed. No data.

Fleming, A.A., Roger, T.H. and Bancroft, T.A. (1957). Field plot technique with hybrid corn under Alabama conditions. Agronomy Journal, 49, 1-4. Reviwed. No data.

Forster, Howard Carlyle and Vasey, A. J. (1928). Experimental error of field trials in Australia. Proceedings of the Royal Society of Victoria. New series, 40, 70–80. Reviewed. agridat::forster.wheat.uniformity

Frey, K.J. and Baten, W.D. (1953). Optimum Plot Size for Oat Yield Tests. Agron. J., 45: 502-504. Reviewed. No data.

Garber, RJ and Mcllvaine, TC and Hoover, MM. 1926. A study of soil heterogeneity in experiment plots. Jour Agr Res, 33, 255-268. Tables 3, 5. agridat::garber.multi.uniformity

Gardenhire, James H. (1949). Field Plot Technique and Plant Characteristic Studies with Varieties of Castor Plants. Thesis, Okla. Agr and Mech. Coll., Stillwater, Okla. Reviewed. No data.

Garner, F. H.; Grantham, J.; Sanders, H. G. (1934). The value of covariance in analysing field experimental data. The Journal of Agricultural Science, 24(2), 250–. https://doi:10.1017/s0021859600006626

George, M. V.; M. Sannamarappa (1984). Uniformity trial: Size, Shape, and Direction of Experimental Plots for Turmeric. Proceedings of the Sixth Symposium on Plantation Crops, p. 429. Reviewed. No data.

Gomez, K.A. and R. C. Alicbusan (1969). Estimation of optimum plot size from rice uniformity data. The Philippine Agriculturist. 52, 586-601 Not found, but probably the same data used in Gomez & Gomez (1984).

Gomez, K.A. and Gomez, A.A. (1984). Statistical Procedures for Agricultural Research. Wiley-Interscience. Page 481. agridat::gomez.rice.uniformity

Gopalakrishna, S. (1992). Optimum plot size and shape, block size and shape and relative efficiency of designs for field experiments in navane (Setaria italica). Thesis. Reviewed. No data.

Goulden, C. H. (1937). Efficiency in field trials of pseudo-factorial and incomplete randomized block methods. Canadian Journal of Research, 15. Reviewed. This paper used uniformity trials from other papers (Batchelor, Wiebe, etc).

Goulden, C. H. (1939). Methods of statistical analysis, 1st ed. Page 18. This version is 20x20. The full 48x48 data was obtained from Rothamsted. agridat::goulden.barley.uniformity

Goyal, Manoj Kumar. (1998). A Study of uniformity trial in wheat (Triticum aestivum L.). Thesis, Haryana Agricultural University. . Reviewed. No data.

Guimarães, B. V. C., de Carvalho, A. J., Aspiazú, I., da Silva, L. S., da Silva, R. R. P., Pimenta, A. M. L., & Moura, M. M. A. (2021). Optimal plot size for experimentation of common beans (Phaseolus vulgaris L.) in the northern region of Minas Gerais, Brazil: Experimental plots. Revista de la Facultad de Ciencias Agrarias UNCuyo, 55-63, 1853-8665. Reviewed. No data.

Guimarães, Bruno Vinícius Castro, et al. (2020). Optimal plot size for experimental trials with Opuntia cactus pear. Acta Scientiarum. Technology 42 (2020): e42579-e42579. Reviewed. No data.

Gupton, C.L. (1972). Estimates of Optimum Plot Size and Shape from Uniformity Data in Burley Tobacco (Nicotiana tabacum L.). Agron. J., 64, 678-682. Reviewed. No data.

Haapanen, Matti (1992). Effet of plot size and shape on the efficiency of progeny tests. Silva Fennica, 26, 201-209. Reviewed. No data.

Handa, D. P.; Sreenath, P. R., & Rajpali, S. K. (1995). Uniformity trial with lucerne grown for fodder. Grass and Forage Science, 50(3), 209–216. Reviewed. No data.

Hansen, Niels Anton (1914). Prøvedyrkning paa Forsøgsstationen ved Aarslev. Tidsskrift for landbrugets planteavl, Bind 21, page 553. In Danish. Reviewed. agridat::hansen.multi.uniformity

Hariharan, V., Jacob Thomas, M. George, K.C. (1986). Optimum size and shape of plots for field experiments in brinjal. Agricultural Research Journal of Kerala, 24(2), 189-194. Reviewed. No data.

Harris, J Arthur and Scofield, CS. (1920). Permanence of differences in the plats of an experimental field. Jour. Agr. Res., 20, 335-356. agridat::harris.multi.uniformity

Harris, J. Arthur and Scofield, CS. (1928). Further studies on the permanence of differences in the plots of an experimental field. Jour. Agr. Res. 36, 15–40. agridat::harris.multi.uniformity

Harris, J.A. 1920. Practical universality of field heterogeneity as a factor influencing plot yields. Journal of Agricultural Research, 19, 279–314. Page 296-297. agridat::harris.multi.uniformity

Haque, H. N. Azad, N. K. Jha, R. N. and Sing, S. N. (1988). Optimum Size and Shape of Plots for Wheat. Annals of Agricultural Research, 9, 165-170. Reviewed. No data. The criterion for selection of optimum plot size should be CV and not the point of maximum curvature.

Hartman, J. D.; and E. C. Stair (1942). Field plot technique studies with tomatoes. Proceedings Of The American Society For Horticultural Science, 41, 315-320. agridat::hartman.tomato.uniformity

Hatheway, W. H., and E. J. Williams. (1958). Efficient estimation of the relationship between plot size and the variability of crop yields. Biometrics, 14, 207-222. Reviewed. No data.

Hatton, R. G.; N. H. Grubb & R. C. Knight (1928) Black Currant Variety Trials: Reliability of Results. Journal of Pomology and Horticultural Science, 4:4, 200-220. Not used. Has data for 21 bushes * 4 years and 52 bushes * 4 years.

Hayes, H. K. and A. C. Arny (1917). Experiments in field technic in rod row tests. J. Agr. Res. 11, 399-419. Reviewed. No data.

Heath, O.V.S. (1970). Investigation by Experiment. Table 1. agridat::heath.raddish.uniformity

Heidmann, T. (1988). Startkarakterisering af arealer til systemforskning I. Forsøgsarealer, måleprogram og metoder. Tidsskrift for Planteavls Specialserie. S 1958, 89 pp. No data. No obvious data found for a field 26x20 plots. Mentioned in Kristensen (2003).

Heidmann, T. (1989). Startkarakterisering af arealer til systemforskning: IV Resultater fra arealet ved Jyndevad. Tidsskrift for Planteavls Specialserie. S 2021, 163 pp. No data. No obvious data found for a field 26x20 plots. Mentioned in Kristensen (2003).

Hidalgo, Eduardo Calero Calero (1965). Estudio Del Tamano Y Forma De La Parcela Experimental Para Ensayos De Campo En Frijol (Phaseolus vulgaris L.). Instituto Interamericano de Ciencias Agricolas de la OEA. No data. In Spanish.

Hodnett, G.E. A Uniformity Trial on Groundnuts. Journal of Agricultural Science, 43, 323-328. Reviewed. No data.

Holle, Michael. 1960. Plot technique for field evaluation of three characters in the lima bean. Master’s Thesis, Iowa State University. No digital copy available. Reviweed. No data.

Holtsmark, G and Larsen, BR (1905). Om Muligheder for at indskraenke de Fejl, som ved Markforsog betinges af Jordens Uensartethed. Tidsskrift for Landbrugets Planteavl. 12, 330-351. (In Danish) agridat::holtsmark.timothy.uniformity

Hudson, H. G. (1939). Population studies with wheat: 1. Sampling. J. Agric. Sci, 29, 76-109. Reviewed. No data. The researchers collected about 7200 plots * 13 traits = 93,000 data points. Evaluation was only possible with the use of “Hollerith equipment”.

Humada-Gonzalez, G.G. (2013). Estimação do tamanho otimo de parcela experimental em experimento com soja. Dissertation, Universidade Federal de Lavras. Reviewed. The data published here are the same data as agridat::dasilva.soybean.uniformity.

Humada-Gonzalez, G.G.; Barbuio, R.; Cardozo, N.; MOREIRA, J.M.; Llanes Oviedo, L. Estimação do tamanho otimo de parcela experimental em experimento com soja transgenica. In: I semana de iniciação cientifica e I seminario integrado da Pos-graduação, 2018 Goias Brasil I semana de iniciação cientifica e I seminario integrado da Pos-graduação. 2018.

Humada González G. G., Ramalho de Morais A, Caballero Mendoza CA, Bortolini J, Rodrigues Liska G. (2018). Estimation of Optimum Plot Size in Experimentation with Sweet Potato. Agrociencia Uruguay, 22(2):e13. Reviewed. No data.

Idrees, Nadia; and Muhammad Inayat Khan (2009). Design improvement using uniformity trials experimental data. Pak. J. Agri. Sci., Vol. 46(4), 2009. Reviewed. No data.

Igue, Toshio; Ademar Espironelo, Heitor Cantarella, Erseni Joao Nelli. (1991). Tamanho e forma de parcela experimental para cana-de-acucar (Plot size and shape for sugar cane experiments). Bragantia, 50, 163-180. Appendix, page 169-170. agridat::igue.sugarcane.uniformity

Immer, F. R. (1932). Size and shape of plot in relation to field experiments with sugar beets. Jour. Agr. Research, 44, 649–668. agridat::immer.sugarbeet.uniformity

Immer, F. R. and S. M. Raleigh (1933). Further studies of size and shape of plot in relation to field experiments with sugar beets. Journal of Agricultural Research, 47, 591-598. agridat::immer.sugarbeet.uniformity

Iyer, P. V. Krishna (1942). Studies with wheat uniformity trial data. I. Size and shape of experimental plots and the relative efficiency of different layouts. The Indian Journal of Agricultural Science, 12, 240-262. Page 259-262. agridat::iyer.wheat.uniformity

Jaggard, K. W. (1975). The size and shape of plots in sugar-beet experiments. Annals of Applied Biology, 80(3), 351–357. Reviewed. No data.

James, W. C., & Shih, C. S. (1973). Size and Shape of Plots for Estimating Yield Losses from Cereal Foliage Diseases. Experimental Agriculture, 9(01), 63. Reviewed. No data.

Joachim, A.W.R. 1935. A uniformity trial with coconuts. Trop. Agric. Mag. Ceylon. Agric. Soc. 85:198-207. Reviewed. Has data, but blocks are different sizes. Not used.

Johnson, I.J. & Murphy, H.C. 1943. Lattice and lattice square designs with oat uniformity data and in varietal trials. J. Agric. Sci., 22, 366-372. No data. Has a contour map of fertility.

Jones, W.W.; T.W. Embleton; C.B. Cree. (1957). Number of Replications and Plot Sizes Required for Reliable Evaluation of Nutritional Studies and Yield Relationships with Citrus and Avocado. American Society for Horticultural Science, 69:208-216. Reviewed. No data. Fruit yields are much more variable than quality factors.

Jones, Marcus; Marin Harbur, and Ken J. Moore (2021). Automating Uniformity Trials to Optimize Precision of Agronomic Field Trials. Agronomy 2021, 11, 1254. agridat::jones.corn.uniformity Data from 12x12 corn expt.

Jua, Junagadh. Optimum plot size for field experiments on tomato – A statistical investigation. Thesis, Junagadh Agricultural University. Reviewed. No data.

Justesen, S. (1932). Influence of Size and Shape of Plots on the Precision of Field Experiments with Potatoes. The Journal of Agricultural Science, 22(2), 366-372. doi:10.1017/S0021859600053685 Reviewed. No data. Conclusion: Long, narrow plots are most efficient (unless there is competition between rows).

Kadam, B. S. Kadam; and S. M. Patel. (1937). Studies in Field-Plot Technique With P. Typhoideum Rich. The Empire Journal Of Experimental Agriculture, 5, 219-230. agridat::kadam.millet.uniformity

Kalamkar, R.J. (1932). Experimental Error and the Field-Plot Technique with Potatoes. The Journal of Agricultural Science, 22, 373-385. agridat::kalamkar.potato.uniformity

Kalamkar, R. J (1932). A Study in Sampling Technique with Wheat. The Journal of Agricultural Science, Vol.22(4), pp.783-796. agridat::kalamkar.wheat.uniformity

Katyal, Visay (1994). Relative efficiency of neighbouring techniques over block design for field experiments with wheat on Sodic soils. J. Ind. Soc. Ag. Stat. 46, 231-234. Reviewed. No data.

Kaushik, L. S., R. P. Singh, and T. P. Yadava. “A uniformity trial with mustard [India].” Indian Journal of Agricultural Sciences (1977). Reviewed. No data.

Kavitha, B. (2010). Study on optimum plot size and optimum plot shape of soybean crop. Reviewed. No data.

Keller, Kenneth R. (1949). Uniformity Trial on Hops, Humulus lupulus L., for Increasing the Precision of Field Experiments. Reviewed. No data.

Keller, K.R. (1951). Relative Efficiency of Rectangular and Triple Rectangular Lattice Designs Using Hop Uniformity Trial Data. Agron. J., 43: 93-96. Reviewed. No data.

Kempton, R. A. and C. W. Howes (1981). The use of neighbouring plot values in the analysis of variety trials. Applied Statistics, 30, 59–70. agridat::kempton.barley.uniformity

Kerr, H. W. (1939). Notes on plot technique. Proc. Internat. Soc. Sugarcane Technol. 6, 764-778. agridat::kerr.sugarcane.uniformity

Khan, Abdur Rashid and Jage Ram Dalal (1943). Optimum Size and Shape of Plots for Brassica Experiments in the Punjab. Sankhyā: The Indian Journal of Statistics ,6, 3. Proceedings of the Indian Statistical Conference 1942 (1943), pp. 317-320 (4 pages). agridat::khan.brassica.uniformity

Khan, Mujahid; Ramesh Chander Hasija; Des Raj Aneja; Manish Kumar Sharma (2016). A uniformity trial on Indian mustard for determination of optimum size and shape of blocks. Journal of Applied and Natural Science 8 (3): 1589 - 1593. Reviewed. No data.

Khan, Mujahid & R. C. HASIJA and NITIN TANWAR (2017). Optimum size and shape of plots based on data from a uniformity trial on Indian Mustard in Haryana. MAUSAM, 68, 67-74. Reviewed. No data.

Khin, San. 1950. Investigation into the relative costs of rice experiments based on the efficiency of designs. Dissertation: Imperial College of Tropical Agriculture (ICTA). Appendix XV. agridat::khin.rice.uniformity

Khurana, Alka. (1991). A Study of Uniformity Trial in Soyabean. Thesis, Haryana Agricultural University. Reviewed. No data. Smith’s Law.

Kiesselbach, Theodore A. (1917). Studies Concerning the Elimination of Experimental Error in Comparative Crop Tests. University of Nebraska Agricultural Experiment Station Research Bulletin No. 13. Pages 51-72. agridat::kiesselbach.oats.uniformity

Koch, E.J. and Rigney, J.A. (1951). A Method of Estimating Optimum Plot Size from Experimental Data. Agron. J., 43: 17-21. Reviewed. No data. Idea: The footnote of the paper says that this paper is part of an MS Thesis at North Carolina State. I was unable to find online.

Kulkarni, R. K., Bose, S. S., and Mahalanobis, P. C. (1936). The influence of shape and size of plots on the effective precision of field experiments with sorghum. Indian J. Agric. Sci., 6, 460-474. Appendix 1, page 172. agridat::kulkarni.sorghum.uniformity

Kristensen, R. K. (1925). Anlaeg og Opgoerelse af Markforsoeg. Tidsskrift for landbrugets planteavl, Vol 31, 464-494. Fig 1, pg. 467. agridat::kristensen.barley.uniformity

Kristensen, K. (2003). Incomplete split-plots in variety trials - based on a-designs. In: Biuletyn Oceny Odmian, 31, pp. 7-17. Reviewed. No data. Refers to other papers with uniformity trials.

Krysczun, Dionatan Ketzer; Lúcio, Alessandro Dal’Col; Sari, Bruno Giacomini; Diel, Maria Inês; Olivoto, Tiago; Santana, Cinthya Souza; Ubessi, Cassiane; Schabarum, Denison Esequiel (2018). Sample size, plot size and number of replications for trials with Solanum melongena L.. Scientia Horticulturae, 233(), 220–224. Reviewed. No data.

Krysczun, Dionatan, Alessandro D. Lúcio, Bruno G. Sari, Maria I. Diel, Tiago Olivoto, José A. G. da Silva, Cinthya S. Santana, Patrícia J. Melo, & Sabrina M. Gomes. (2018). The Size of the Uniformity Trial Affects the Accuracy of Plot Size Estimation in Eggplant. Journal of Agricultural Science; Vol. 10, No. 11. Reviewed. No data.

Kuehl, R.O. and Kittock, D.L. (1969). Estimate of Optimum Plot Size for Cotton Yield Trials. Agron. Journal, 61: 584-586. No data.

Kumar, Ajay. 1999. A study on uniformity trial in sesame (Til) Sesamum indicum. Reviewed. No data.

Kumar, Ajay; Kiran Kapoor; Gupta, S. C.; Hasija, R. C. Uniformity trial on sesame Sesamum indicum. Not found. I did find Kumar’s thesis, but it had no data.

Lakhera, M.L.; M.A. Ali (1996). Optimum plot size and shape estimates for sunflower yield trials. Journal of Maharashtra Agricultural Universities 21(3): 350-353 Reviewed. No data. Optimum plot size was 20 units, 10 rows each 2 m long.

Lamb, J.A., Dowdy, R.H., Anderson, J.L. and Rehm, G.W. (1997). Spatial and Temporal Stability of Corn Grain Yields. Journal of Production Agriculture, 10: 410-414. Reviewed. Has data for the same plots for 5 years, but it has been scaled to relative yield in each year, and the harvested area is only 20-foot long from each 60-foot long plot. Decided not to use.

Lambert, Edmund B. (1934). Size and arrangement of plots for yield tests with cultivated mushrooms. Journal of Agricultural Research, Vol 48, 971-980. Reviewed. Not used. Uniformity trial at three locations for mushrooms in growth houses.

Lander, P. E. et al. (1938). Soil Uniformity Trials in the Punjab I. Ind. J. Agr. Sci. 8:271-307. agridat::lander.multi.uniformity

Lavezo, André; Alberto Cargnelutti Filho, Cláudia Marques de Bem, Cláudia Burin, Jéssica Andiara Kleinpaul, Rafael Vieira Pezzini. Plot size and number of replications to evaluate the grain yield in oat cultivars. Bragantia, Campinas, v. 76, n. 4, p.512-520, 2017. Reviewed. No data.

Laycock, D. H. (1955). The effect of plot shape in reducing the errors of tea experiments. Tropical Agriculture, 32, 107-114. agridat::laycock.tea.uniformity

Lehmann, A. Ninth Annual Report of the Agricultural Chemist For the Year 1907-08. Department of Agriculture, Mysore State. [2nd-9th] Annual Report of the Agricultural Chemist. agridat::lehmann.millet.uniformity

Lessman, Koert James (1962). Comparisons of methods for testing grain yield of sorghum. Iowa State University. Retrospective Theses and Dissertations. Paper 2063. Appendix Table 17. agridat::lessman.sorghum.uniformity

Lessman, K.J. and Atkins, R.E. (1963). Optimum Plot Size and Relative Efficiency of Lattice Designs for Grain Sorghum Yield Tests. Crop Science, 3: 477-481 Reviewed. See Lessman thesis for data. agridat::lessman.sorghum.uniformity

Li, HW and Meng, CJ and Liu, TN. 1936. Field Results in a Millet Breeding Experiment. Agronomy Journal, 28, 1-15. Table 1. DOI: 10.2134/agronj1936.00021962002800010001x agridat::li.millet.uniformity

Ligon, L. L. (1930). Size of Plat and Number of Replications in Field Experiments with Cotton. Agronomy Journal, 22, 689-699. Reviewed. Not a uniformity test, but rather a ‘cultural’ test and a ‘varietal’ test.

Liji, Kumari (1997). Optimum size of plots in coconut using multivariate techniques. Thesis, Kerala Agriculture Univ. Reviewed. No data.

Lizy, M.J. (1986). Uniformity trials on colocasia. Reviewed. No data.

Lizy, M.J.; George, K.C.; Thomas, M.J. (1988). Optimum size and shape of plots under colocasia (Colocasia esculenta L.) Agricultural Research Journal of Kerala 25(2): 241-248 Paper not found, but Lizy thesis was found, but had no data.

Loesell, Clarence (1936). Size of plot & number of replications necessary for varietal trials with white pea beans. Thesis, Michigan State. agridat::loesell.bean.uniformity

Lohmor, Nishu (2015). Estimation of optimum plot size, shape and number of replications in sunflower (Helianthus annuus). Thesis. Reviewed. No data.

Lohmor, Nishu; Mujahid Khan; Kiran Kapoor; and Nitin Tanwar (2017). Study on Optimum Block Size and Shape in Uniformity Trial of Sunflower (Helianthus annuus). Advances in Research, 9, 1-8. 2017. Reviewed. No data.

Lord, L. (1931). A Uniformity Trial with Irrigated Broadcast Rice. The Journal of Agricultural Science, 21(1), 178-188. agridat::lord.rice.uniformity

Love, Harry (1937). Application of Statistical Methods to Agricultural Research. The Commercial Press, Shanghai. Page 411. agridat::love.cotton.uniformity

Lorentz, Leandro Homrich; Alexandra Augusti Boligon; Lindolfo Storck; Alessandro Dal’Col Lúcio. (2010). Plot size and experimental precision for sunflower production. Sci. Agric. (Piracicaba, Braz.), v.67, n.4, p.408-413. Reviewed. No data.

Love, H. H. (1936). Are Uniformity Trials Useful?. Agronomy Journal, 28(3), 234. https://10.2134/agronj1936.00021962002800030007x Reviewed. No data.

Lúcio, A. D. C., Nunes, L. F., Rego, F., & Pasini, M. P. (2016). Relations between zero-inflated variables in trials with horticultural crops. Spanish Journal of Agricultural Research, 14(2), 17. Reviewed. No data.

Lúcio, A. D. C., & Benz, V. (2016). Accuracy in the estimates of zucchini production related to the plot size and number of harvests. Ciência Rural, 47. Reviewed. No data.

Lucyamma, Mathew. (1986). Standardization of field plot technique for cashew. Diss. Department of Statistics, Kerala Agricultural University. Reviewed. No data. Page 34 has details. 294 trees, 8 years (combined into 4).

Lyon, T.L. (1911). Some experiments to estimate errors in field plat tests. Proc. Amer. Soc. Agron, 3, 89-114. Table III. agridat::lyon.potato.uniformity

MacDonald, D. and Fielding, W. L. and Ruston, D. F. (1939). Experimental methods with cotton: I. The design of plots for variety trials. The Journal of Agricultural Science, 29, 35-47. Reviewed. No data. Two heatmaps of fields.

Magistad, O. C.; & C. A. Farden (1934). Experimental Error In Field Experiments With Pineapples. Journal of the American Society of Agronomy, 26, 631–643. agridat::magistad.pineapple.uniformity

Masood, M Asif and Irum Raza and Muhammad Yaseen. 2012. Estimation of optimum field plot size and shape in paddy yield trial. Pakistan J. Agric. Res., Vol. 25 No. 4, 2012 agridat::masood.rice.uniformity

McClelland, Chalmer Kirk (1926). Some determinations of plat variability. Agronomy Journal, 18, 819-823. agridat::mcclelland.corn.uniformity

Meier, V.D. and Lessman, K.J. (1971). Estimation of Optimum Field Plot Shape and Size for Testing Yield in Crambe abyssinica Hochst. Crop Science, 11: 648-650. Reviewed. No data. Idea: There could be a thesis by Meier at Perdue University. I have looked online but not found anything.

Mercer, WB and Hall, AD, (1911). The experimental error of field trials The Journal of Agricultural Science, 4, 107-132. Table 1. agridat::mercer.mangold.uniformity agridat::mercer.wheat.uniformity

Miller, John D., and E. James Koch. (1962) “A Plot Technique Study with Birdsfoot Trefoil”. Agronomy Journal, 54, 95-97. Reviewed. No data.

Miyaska, Susan C.; Charles E. McCulloch, Graham E. Fogg, James R. Hollyer. Optimum Plot Size for Field Trials of Taro (Colocasia esculenta). HortScience 48, 435-443. Reviewed. No data. Optimum plot size was 18-21 plants (4.9 - 5.7 m^2).

Modjeska, Janet She Some aspects of spatial analysis of uniformity data. Inst. of Statistics Mimeo Series No 1345. Used data from Batchelor & Reid.

Modjeska, J. S., & Rawlings, J. O. (1983). Spatial Correlation Analysis of Uniformity Data. Biometrics, 39(2), 373. Used data from Batchelor & Reid.

Mohammed, Ali Abulgasim. The analysis of autonormal moels and their correlation struture as applied to uniformity data. Institute of Statistics Mimeograph Series No. 1313. Reviewed. No data.

Montgomery, E. G. (1912). Variation in Yield and Methods of Arranging Plats To Secure Comparative Results. Twenty-Fifth Annual Report of the Agricultural Experiment Station of Nebraska, 164-180. agridat::montgomery.wheat.uniformity

Montgomery, E. G. (1913). Experiments in Wheat Breeding: Experimental Error In The Nursery and Variation in Nitrogen and Yield. U.S. Dept of Agriculture, Bureau of Plant Industry, Bulletin 269. Figure 10, page 37. agridat::montgomery.wheat.uniformity

Moore, John F and Darroch, JG. (1956). Field plot technique with Blue Lake pole beans, bush beans, carrots, sweet corn, spring and fall cauliflower. Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, State College of Washington. agridat::moore.uniformity

Muniya, Sejal ben. (2017). Plot size study through mathematical approach. Thesis, Agricultural University Anand. Reviewed. No data.

Murray, E. K. S. (1934). The value of a uniformity trial in field experimentation with rubber. The Journal of Agricultural Science, 24(2), 177-184. Reviewed. Not used. Has 2 years of 5x5 grid from rubber trees. Based on data archived at Rothamsted, so not used at this time. We will see if I can get the original data.

Nagai, Violeta (1978). Tamanho da parcela e numero de repeticoes em experimentos com morangueiro (Plot size and number of repetitions in experiments with strawberry). Bragantia, 37, 71-81. Table 2, page 75. agridat::nagai.strawberry.uniformity

Nagardas, Motaka Ganapatlal (2006). Plot size study from uniformity trial data in durum wheat for Bhal region. Reviewed. No data.

Nair, B. Gopakumaran Nair, (1984). Optimum plot size for field experiments on turmeric (Curcuma longa L) Thesis, Department of Statistics, College of Veterinary & Animal Sciences, Mannuthy. Appendix has data. agridat::nair.turmeric.uniformity

Narain, R.; and A. Singh, (1940). A note on the shape of blocks in field experiments. Ind. J. Agr. Sci., 10, 844-853. Page 845. agridat::narain.sorghum.uniformity

Narayanan, R (1974). Estimation of optimum plot size for clone trials in hevea. Journal of the Rubber Research Institute of Malaysia 24(1): 54-67. Reviewed. No data.

Narayanbhai, P.J. (2005). Plot size study from uniformity trial data of French bean. Reviewed. No data.

Nokoe, Sagary & Rodomiro Ortiz (1998). Optimum Plot Size for Banana Trials. HortScience 33, 130-132. Reviewed. No data.

Nonnecke, Ib Libner. (1958). Yield variability of sweet corn and canning peas as affected by plot size and shape. Thesis at Oregon State College. agridat::nonnecke.peas.uniformity agridat::nonnecke.sweetcorn.uniformity

Nonnecke, I. L. and K. W. Smillie (1964). Precision of field experiments with vegetable crops as influenced by plot size and shape III Potatoes. Canadian Jour of Plant Science, 44, 57-65. Reviewed. No data.

Obsi, Dechassa (2008). Application of Spatial Modeling to the Study of Soil Fertility Pattern. MS Thesis, Addis Ababa University. Page 122-125. agridat::obsi.potato.uniformity

Odland, TE and Garber, RJ. (1928). Size of Plat and Number of Replications in Field Experiments with Soybeans. Agronomy Journal, 20, 93–108. agridat::odland.soybean.uniformity

Omanakuttan, Chithra (2015). Plot size study from uniformity trial data of mustard (Brassica juncea L.). M.S. Thesis, Sardarkrushinagar Dantiwada Agricultural University. Reviewed. No data.

Onate, Burton. 1965. Size and Shape of Plot in Rice Replicated Field Experiments. Philippine Statistician. Reviewed. No data. Results indicate that plot of dimensions 4 rows by 12 hills (3-5 sq m) will be relatively as efficient as bigger plots. The CV observed was about 10 percent, which implies 5 replicates are needed to detect a mean difference of 10 percent.

Oscar Morgan, J. Some Experiments to Determine the Uniformity of Certain Plats for Field Tests. Agronomy Journal, 1, 58-67. Reviewed. Has relative yields for 1x63 plots of wheat followed by fodder corn in the same season. Not included in agridat because the experiment is only 1 plot wide.

Oliveira, Sérgio José Ribeiro de. Dependência entre o tamanho da unidade básica e as estimativas das dimensões da parcela experimental de batata. Diss. Universidade Federal de Santa Maria, 2005. Reviewed. No data.

Paardekooper, E.G. (1966). Results of four uniformity trials to determine the influence of plot size and shape on the efficiency of field experiments in rubber. Res. At-chs Rubb. Res. Inst. Malaya, Docum. 56. Reviewed. No data.

Paez Bogarin, Gilberto (1962). Estudios sobre tamano y forma de parcela para ensayos en cafe. Instituto Interamericano de Ciencias Agricolas de la O.E.A. Centro Tropical de Investigacion y Ensenanza para Graduados. Costa Rica.

Pal, Satyabrata; Satyananda Basak; Subhabaha Pal; Sanpei Kageyama (2007). On determination of optimum size and shape of plots in field trials. Biometrical Letters, 44, 23-31. Reviewed. No data.

Pal, Satyabrata; Goutam Mandal; Kajal Dihidar. (2015). Determination of robust optimum plot size and shape – a model-based approach. Biometrical Letters, 52, 13-22. Reviewed. No data.

Pan, Chien-liang (1935). Uniformity Trials with Rice. Agronomy Journal, 27(4), 279–285. No data.

Panse, V. G. (1941). Studies in the technique of field experiments. V. Size and shape of blocks and arrangements of plots in cotton trials. The Indian Journal Of Agricultural Science, 11, 850-867 agridat::panse.cotton.uniformity

Panse & Sukhatme (1954). Statistical Methods for Agricultural Workers. ICAR, New Delhi. Ch 7, p 141. Same data as Panse (1941). agridat::panse.cotton.uniformity

Parker, E. R.; & L. D. Batchelor. (1932). Variation in the Yields of Fruit Trees in Relation to the Planning of Future Experiments. Hilgardia, 7(2), 81-161. Tables 3-9.

Patel, J.B. (2004). Estimation of Optimum Plot Size for Field Experiment on Green Gram (Phaseolus rediatus L.) Reviewed. No data.

Patel, Natverlal M. (1967). Plot technique in Bajri-Pennisetum typhoides. Reviewed. No data.

Patel, Natverlal M. (1981). Plot size study in bidi tobacco (Nicotiana tabacum L.). Thesis. Reviewed. No data.

Patil, N.M. (1995). Optimum plot size and shape, block size and shape and relative efficiency of designs for field experiments in cowpea (Vigna unguiculata). Reviewed. No data.

Patil, S. L. and Narayana Reddy and P. Bhaskra Rao (2010). Experimental Plot Size and Shape Based on Data From a Uniformity Trial in Dryland Bengalgram (Cicer arietinum L.) during Winter Season in the Vertisols of Semi–Arid Tropics of South India. Indian J.Dryland Agric. Res. & Dev. 2010 25(1) : 102-105. Reviewed. No data.

Pearce, S. C.; & Jean M. S. Thom (1951). A Study of Plot-Size with Nigerian Estate Cacao. Journal of Horticultural Science, 26:4, 261-267. Reviewed. No data.

Peiris, T. S. G.; and R. O. Thattil (1997). Alternative methods to determine plot sizes for three crops: A case study from coconut data. COCOS (1997), 12, 44-53 Reviewed. No data. References CRI (1985).

Peiris, T. U. S. and M. A. B. Ranatunga (2005). Use of Information on Positional Variation in Increasing Precision of Field Experiments in Tea. Sri Lanka Journ Tea Science 70, 10-17. Reviewed. No data.

Pimentel, Gomes; Couto, H.T.Z. (1985). O Tamanho Ótimo de Parcela Experimental Para Ensaios com Eucaliptos (The Optimum Experimental Plot Size for Essays with Eucalipt). Revista do IPEF, Pirarcicaba, 31, 75. Reviewed. No data.

Plaisted, Robert LeRoy (1954). Field plot techniques for estimating onion yields. Master’s Thesis, Iowa State University. Reviewed. No data.

Pointer, John Pate and E. James Koch (1961). Estimates of Optimum Plot Size from Uniformity Data in Maryland Tobacco. Tobacco Science, 5-27, p. 112-117. Reviewed. No data.

Polson, David (1964). Estimation of Optimum Size, Shape, and Replicate Number of Safflower Plots for Yield Trials. Utah State University, All Graduate Theses and Dissertations, 2979. Table 6. agridat::polson.safflower.uniformity

Poultney, R., Riley, J., & Webster, R. (1997). Optimizing plot size and shape for field experiments on terraces. Experimental Agriculture, 33(01), 51–64. doi:10.1017/s0014479797000161 Reviewed. No data. Heatmaps of 5 terraces.

Prabhakaran, P.V. (1974). Optimum plot size for field experiments with tapioca Agricultural Research Journal of Kerala, 12(1), 19-23. Reviewed. No data.

Prajapati Rameshbhai, I. (2005). Optimum size and shape of plot for field experiments on potato. Thesis. Reviewed. No data.

Prabhakaran, P.V. (1978). Optimum plot size for field trials with banana. Agricultural Research Journal of Kerala, 16(1), 33-38. Reviewed. No data.

Rakhi, T. and Arya V. Chandran, Vijayaraghava Kumar and Brigit Joseph. Estimation of Optimum Plot Size and Shape for Branching Variety of Cassava (Manihot esculenta Crantz) Using Statistical Methods. Journal of Root Crops, 2020, Vol. 46 No. 1, pp. 58-62 Reviewed. No data.

Ramani, C.V. (1995). Plot technique in Lucern. Reviewed. No data.

Rampton H. H. and Roger G. Petersen. Relative efficiency of plot sizes and numbers of replications as indicated by yields of orchardgrass seed in a uniformity test. Reviewed. No data.

Reddy, M. N., and C. K. Ramanatha Chetty (1982). Effect of Plot Shape on Variability in Smith’s Variance Law. Experimental Agriculture, 18, 333-338. Reviewed. No data.

Reddy, M. Narayana; C. K. Ramanatha Chetty. (1985). Experimental plot size and shape based on data from a uniformity trial with dryland pigeonpea. Indian J. Agric. Sci. Vol 55, Num 8, pp 538-543 Not found.

Reddy, S.B.S. (1992). Uniformity trial on groundnut. No data for the uniformity trial? Small dataset on page 96, 20 plots with 5 plants/plot. Branches/plant, leaves/plant, height of the plant.

Reji. (1995). Optimum plot size for intercropping experiments. Thesis, Kerala Agricultural University.

Reynolds, D.T. and D.T. Killough and J.T. Vantine (1934). Size, shape, and replication of plats for field experiments with cotton. Agronomy Journal, 26, 725-734. Reviewed. No data.

Richter, C., & Kroschewski, B. (2012). Geostatistical Models in Agricultural Field Experiments: Investigations Based on Uniformity Trials. Agronomy Journal, 104(1), 91–105. Reviewed. No data. Trials were conducted 1954-1958.

Robinson, H.F.; and J.A.Rigney and P.H.Harvey (1948). Investigations In Peanut Plot Technique With Peanuts. Univ California Tech. Bul. No 86. agridat::robinson.peanut.uniformity

Rossettii, A.G.; Pimentel Gomes, F. (1983). Determinação do Tamanho Otimo de Parcelas em Ensaios Agricolas (Determination of the Optimum Plot Size in Agricultural Essays). Pesq. agropec. bras., Brasilia, 18(5), 477. Reviewed. No data. In Spanish.

Rossetti, A.G.; Gomes, F.P. (1987). A method for the determination of optimum plot size in experiments with rubber trees (Hevea). J Nat Rubb Res (1987) 2(3):135-141 Reviewed. No data.

Rothamsted Experimental Station (1927). Report 1925-1926 with the Supplement to the Guide to the Experimental Plots. Lawes Agricultural Trust, p. 154-155. agridat::sawyer.wheat.uniformity

Sagisi, Fancisca D.; Mariano B. de Ramos. Field Plot and Sampling Techniques on Virginia Tobacco. No data for the uniformity trial part of this report.

Salem, Manal M. and Somaia A. Barakat (2004). Estimation of optimum plot size, number of replications and number of sampling units for Faba bean yield trails. J. Agric. Sci. Mansoura Univ., 29, 4375-4390. Reviewed. No data.

Samita, S.; R. O. Thattil Katulanda; N. E. M. Jayasekara. (1991). Optimum plot size for rubber (Hevea brasiliensis). Tropical Agricultural Research, 3, 348-354. Reviewed. No data.

Sanders, H. G. (1930). A note on the value of uniformity trials for subsequent experiments. The Journal of Agricultural Science, 20(01), 63.  Reviewed. No data. Used data from Aarslev, Denmark.

Sands, Daniel E. (1954). A Determination of Optimum Plot Size for Estimating Mean Number of Bolls. USDA.,_Presentations_and_Conferences/Yield_Reports/A%20Determination%20of%20Optimum%20Plot%20Size%20for%20Estimating%20Mean%20Number%20of%20Bolls.pdf Reviewed. No data.

Sari, Bruno Giacomini; Alessandro Dal’Col Lucio. (2018). Uniformity trials size for estimating cherry tomato plot size. Revista Ciência Agronômica, v. 49, n. 4, p. 653-662, out-dez, 2018 Reviewed. No data.

Sayer, Wynne; M. Vaidyanathan and S. Subrammonia Iyer (1936). Ideal size and shape of sugar-cane experimental plots based upon tonnage experiments with Co 205 and Co 213 conducted in Pusa. Indian J. Agric. Sci., 1936, 6, 684-714. Appendex, page 712. agridat::sayer.sugarcane.uniformity

Sayer, Wynne; and Krishna Iyer. (1936). On some of the factors that influence the error of field experiments with special reference to sugar cane. Indian J. Agric. Sci., 1936, 6, 917-929. Appendix, page 927. agridat::sayer.sugarcane.uniformity

Schmildt, Edilson Romais; Adriel Lima Nascimento; Alan de Lima Nascimento; et al. Optimum plot size for experiments with papaya genotypes in field. African Journal of Agricultural Research, 13, 360-365. Reviewed. No data. Optimum plot size if four plants by plot, using four replications.

Schwertner, Diogo Vanderlei and Alessandro Dal’Col Lúcio, Alberto Cargnelutti Filho. (2015). Uniformity trial size in estimates of plot size in restrict areas. Revista Ciência Agronômica, v. 46, n. 3, p. 597-606. Reviewed. No data.

Schwertner, Diogo Vanderlei ; Alessandro Dal’Col Lúcio, Alberto Cargnelutti Filho. (2015). Size of uniformity trials for estimating the optimum plot size for vegetables. Horticultura Brasileira 33(3):388-393. Reviewed. No data.

Shaboon, Sh. and Fateh, H. and Fares, W. (2013). Utlization of uniformity trials to estimate the optimum plot size and shape and the number of replications in maize yield trials. Egyptian Journal of Agricultural Sciences, 64, 379-388. Reviewed. No data.

Shafi, Sameera (2007). On Some Aspects of Plot Techniques in Field Experiments on Tomato (Lycopersicon esculentum mill.) in Soils of Kashmir. Thesis. Univ. of Ag. Sciences & Technology of Kashmir. Table 2.2.1. agridat::shafi.tomato.uniformity

Shafi, Sameera; S.A.Mir, Nageena Nazir, and Anjum Rashid. (2010). Optimum plot size for tomato by using S-PLUS and R-software’s in the soils of Kashmir. Asian J. Soil Sci., 4, 311-314. agridat::shafi.tomato.uniformity

Shah, Syed Asghar Ali; Murtaza Khan Alamgir (2016). Size, Shape and No. of Replication of Plot in Relation to Field Experiment with Wheat Variety PIRSABAK-2004. Food Science and Quality Management, 50. Reviewed. No data.

Sharma, Anju (1992). Determination of optimum plot size estimation of of tomato (Lycopersicon esculentum Mill.) yield in Saproon Valley of Solan District (H.P.). Reviewed. No data.

Sharpe, R. H., and G. H. Blackmon, 1950 A Study of Plot Size and Experimental Design with Pecan Yield Data. Am. Soc. Hort. Sci. Pro. 56:236-241. Reviewed. No data.

Sheela, M A (1987). Optimum size of plots in cocoa (Theobroma cacoa L.) a multivariate case. Department of Statistics, College of Veterinary and Animal Sciences, Mannuthy Reviewed. No data.

Shitap, Shri M.S. (2011). Plot technique in Brinjal (Solanum melongena L.) Reviewed. No data. The table of contents suggests that the data appears in the appendix, but the pages are blank.

Shitap, M. S. and V. B. Darji (2014). On optimum plot size and shape for field experimentation on brinjal (Solanum melongena L.) under middle Gujarat condition. International Research Journal of Agricultural Economics and Statistics, 5, 158-152. Reviewed. No data.

Shukla, A. K., and Subhash K. Yadav, and Govind Ch. Misra (2013). A linear model for uniformity trial experiments. Statistics in Transition, 14, 161-170. Reviewed. No data. (Appeared to use data from Haque, but only summary statistics, not raw data).

Shukla, Alok Kumar (2011). Some contributions in estimation of asymptotic regression statistical models. Dissertation, Chhatrapati Sahuji Maharaj University. Reviewed. No data.

Siao, F.U. 1935. Uniformity trials with cotton. J. Amer. Soc. Agron., 27, 974-979. Reviewed. No data.

Sills, G. R., & Nienhuis, J. (1993). Field Plot Technique Affects Snap Bean Yield Evaluation. Journal of the American Society for Horticultural Science, 118(5), 672-674. Reviewed. No data.

Silva, Mauricio dos Santos da, et al. (2019) “Optimal size of experimental plots of papaya trees using a modified maximum curvature method.” Ciência Rural 49 (2019). Reviewed. No data.

Smith, Francis L. (1958). Effects of plot size, plot shape, and number of replications on the efficacy of bean yield trials. Hilgardia, 28, 43-63. agridat::smith.beans.uniformity

Smith, H. Fairfield (1938). An empirical law describing heterogeneity in the yields of agricultural crops. The Journal of Agricultural Science, volume 28, Issue 1, January 1938, pp. 1 - 23. agridat::smith.wheat.uniformity

Smith, Louis H. 1910. Plot arrangement for variety experiments with corn. Agronomy Journal, 1, 84–89. Table 1. agridat::smith.corn.uniformity

Sokhal, Urmil (1982). College on The Efficiency of Designs for Bajra in Relation to Shape and size of Plot And Block. Reviewed. No data.

Soplin, H., H. D. Gross, and J. O. Rawlings. (1975). Optimum Size of Sampling Unit to Estimate Coastal Bermudagrass Yield”. Agronomy Journal 67.4 (1975): 533-537. Reviewed. No data.

Stadler, Lewis John. (1921). Experiments in field plot technic for the preliminary determination of comparative yields in the small grains. University Of Missouri. Reviewed. No data. Uniformity trial discussed on page 43.

Stephens, Joseph C. (1928). Experimental methods and the probable error in field experiments with sorghum. Journal of Agricultural Research, 37, 629–646. agridat::stephens.sorghum.uniformity

Stickler, F. C. (1960). Estimates of Optimum Plot Size from Grain Sorghum Uniformity Trial Data. Technical bulletin, Kansas Agricultural Experiment Station. Page 17-20. agridat::stickler.sorghum.uniformity

Stockberger, W. W. (1912). A Study of Individual Performance in Hops. Journal of Heredity, 1, 452-457. Reviewed. No data.

Stockem, J.E., Korontzis, G., Wilson, S.E. et al. (2021) Optimal Plot Dimensions for Performance Testing of Hybrid Potato in the Field. Potato Research, 65, 417–434. Reviewed. No data.

Storck, Lindolfo (2010). Partial collection of data on potato yield for experimental planning. Field Crops Research, 121, 286-290. Reviewed. No data.

Storck, Lindolfo; Sidinei Lopes; Alessandro Dal’Col Lúcio; Alberto ​Cargnelutti Filho (2011). Optimum plot size and number of replications related to selective precision. Ciência Rural 41(3):390-396. No data

Strickland, A. G. (1932). A vine uniformity trial. Journal of Agriculture, Victoria, 30, 584-593.

Strickland, A. G. (1935). Error in horticultural experiments. Journal of Agriculture, Victoria, 33, 408-416. agridat::strickland.grape.uniformity agridat::strickland.peach.uniformity agridat::strickland.tomato.uniformity

Strydom, G. J. (1966). Studies on the planning of field experiments with vegetable crops. S. Afr. J. Agric. Science 9, 183-194. Reviewed. No data.

Summerby, R. (1923). Replication in relation to accuracy in comparative crop tests. J. Am Soc Agron, 15. Also: Reviewed. No data. Data sent to Rothamsted in 1938. Two areas of land, 100 links by 505 links. One area was Alaska Oats. Another area was Huron wheat. fixme check if I can find this in the Rothamsted papers.

Summerby, R. (1925). A Study of Sizes of Plats, Number of Replications, and the Frequency and Methods of Using Check Plots in Relation to Accuracy in Field Experiments. Jour. Amer. Soc, Agron. 17: 140-149. Reviewed. Data is not very uniform. data-unused/summerby.oat.uniformity

Summerby, R. (1934). The value of preliminary uniformity trials in increasing the precision of field experiments. Macdonald College. Reviewed. Has data for 5x35 and 1x35 grid layouts. agridat::summerby.multi.uniformity.

Swallow, William H.; Todd C. Wehner (1986). Optimum Plot Size Determination and Its Application to Cucumber Yield Trials. Euphytica, 35, 421-432. Reviewed. No data. For multiple-harvest yield trials, optimum plot sizes were estimated to be 6.4 to 10.3 m^2.

Swanson, A.F. (1930). Variability of Grain Sorghum Yields as Influenced by Size, Shape, and Number of Plats. Agron. J., 22: 833-838. Reviewed. No data.

Swearingin, M.L. and Holt, D.A. (1976). Using a “Blank” trial as a teaching tool. Journal of Agronomic Education, 5: 3-8. Data from 9 trials. Each trial was RCBD with 4 ‘varieties’ and 4 reps. Not clear if the layout was in rows and columns or randomized.

Taha, R.S. and M.M. Shafik (2000). Relative precision of some incomplete block designs for soybean uniformity trials and optimum sample size. J. Agric. Sci. Mansoura Univ, 25, 5601-5610. Reviewed. No data.

Tartaglia, FdL, Lúcio, A, Diel, MI, et al.  Experimental Plan For Tests With Pea. Agronomy Journal. 2021; 113: 1394–1406. Reviewed. No data.

Taylor, F.W. (1907-1909). The size of the experimental plot for field crops. Proceedings annual Society of agronomy 1, 56-58. Reviewed. No data.

Taylor, Howard Lewis (1951). The effect of plot shape on experimental error. Master’s Thesis, Iowa State University. Reviewed. No digital copy available. No data given. Used data from a corn uniformity trial, oats uniformity, and the data of Fairfield Smith. Smaller experimental errors were found for long narrow plots.

Tedin, Olof (1931). The Influence of Systematic Plot Arrangement upon the Estimate of Error in field Experiments. J. Agric. Science, 21, 191-208. Reviewed. No data. Uses uniformity trials from other papers.

Thomas, H.L. and Abou-El-Fittouh, H.A. (1968) Optimum Plot Size and Number of Replications for Estimating Forage Yield and Moisture Percentage. Agron. J., 60: 549-550. Reviewed. No data.

Thompson, Ross C. (1934). Size, Shape, and Orientation of Plots and Number of Replications Required in Sweetpotato Field-Plot Experiments. J. Agric. Rsch., 5, 379-399. Reviewed. No data. Interesting paper because the experiment was conducted on 4 plots of year/loc combinations.

Toebe, Marcos, et al. (2020). Plot size and number of replications for ryegrass experiments. Ciência Rural 50.1. Reviewed. No data.

Toebe, Marcos, et. al. (2022). Plot size and number of replicates for ryegrass experiments sowed in rows. Pesquisa Agropecuária Brasileira, v.57, e02976, 2022. DOI: Reviewed. No data.

Torrie, J.H., Schmidt, D.R. and Tenpas, G.H. (1963). Estimates of Optimum Plot Size and Shape and Replicate Number for Forage Yield of Alfalfa-Bromegrass Mixtures. Agron. Journal, 55: 258-260.

Vagholkar, B. P. ; Apte, V. N. ; Iyer, S. S. (1940). A study on plot size and shape technique for field experiments on sugarcane. Indian Journal of Agricultural Science 1940 Vol.10 pp.388-403 Reviewed. No data.

Vallejo, R.L. & H. A. Mendoza (1988). Determination of optimum plot size and adequate number of replications to evaluate potato seedling populations. VIIth Symposium of the International Society for Tropical Root Crops, Gosier (Guadeloupe), 1-6 July 1985, Ed. INRA, Paris, 1988. Reviewed. No data.

Vallejo, Roger L.; VHumberto A. Mendoza. (1992). Plot Technique Studies on Sweetpotato Yield Trials. J. AMER. Soc. HORT. SCI. 117(3):508-511. Reviewed. No data.

Vargas-Rojas, Jorge Claudio. (2020). Size and shape of the experimental unit in yield trials of Brachiaria , hybrid CIAT 3608. Vishnaadevi, S.; K. Prabakaran, E. Subramanian, P. Arunachalam. (2019). Determination of fertility gradient direction and optimum plot shape of paddy crop in Madurai District. Green Farming, 10, 155-159. agridat::vishnaadevi.rice.uniformity

Warren, J.A. and Mendez, I. (1981). Block Size and Orientation, and Allowance for Positional Effects, in Field Experiments. Experimental Agriculture, 17, 17 - 24. Reviewed. Used a dozen existing datasets.

Wassom and R.R. Kalton. (1953). Estimations of Optimum Plot Size Using Data from Bromegrass Uniformity Trials. Agricultural Experiment Station, Iowa State College, Bulletin 396, page 314-319. agridat::wassom.brome.uniformity

Webster, C. 1939. A note on a uniformity trial with oil palms. Tropical Agriculture, 16, 15-19. No data according to Mendez.

Westover, Kyle C. (1924). The influence of plot size and replication on experimental error in field trials with potatoes. Agricultural Experiment Station, West Virginia University, No. 189. Reviewed. No data.

Wiebe, G.A. 1935. Variation and Correlation in Grain Yield among 1,500 Wheat Nursery Plots. Journal of Agricultural Research, 50, 331-357. agridat::wiebe.wheat.uniformity

Wiedemann, Alfred Max. 1962. Estimation of Optimum Plot Size and Shape for Use in Safflower Yield Trails. Table 5. All Graduate Theses and Dissertations. Paper 3600. Table 5. agridat::wiedemann.safflower.uniformity

Wiedemann, A.M. and Leininger, L.N. (1963), Estimation of Optimum Plot Size and Shape for Safflower Yield Trials. Agron. J., 55: 222-225. Reviewed. See Wiedemann thesis for data. agridat::wiedemann.safflower.uniformity

Williams, ER and Luckett, DJ. (1988). The use of uniformity data in the design and analysis of cotton and barley variety trials. Australian Journal of Agricultural Research, 39, 339-350. agridat::williams.barley.uniformity agridat::williams.cotton.uniformity

Wilson, C. E. Study of the plots laid out on field II with a view to obtaining plot-fertility data for use in future experiments on these plots, season 1940-41. Dissertation: The University of the West Indies. Page 36-39. See also the dissertation by Bradley. agridat::bardley.multi.uniformity

Wilson, Wendell W. (1970). Texas Vegetable Remote Sensing Study, 1969 Determination of Optimum Plot Size and Shape for Estimation of Carrot Yield. Research and Development Branch Standards and Research Division Statistical Reporting Service.,_Presentations_and_Conferences/Yield_Reports/Texas%20Vegetable%20Remote%20Sensing%20Study%201969.pdf No data found.

Wood, Ronald A. (1972). Optimum Plot size for winter wheat. Research & Development Branch, Standards and Research Division Statistical Reporting Service. Reviewed. No data.

Wyatt, F. A. (1927). Variation in plot yields due to soil heterogeneity. Scientific Agriculture, 7, 248-256. Table 1. agridat::wyatt.multi.uniformity

Yadav, Raj Pal. 1991. Spatial Correlation Analysis of Uniformity Trial Data. College of Basic Sciences and Humanities Chaudhary Charan Singh Haryana Agricultural University Hisar. Reviewed. No data.

Zandonadi, Cecília Uliana and Viçosi, David Brunelli and Fornazier, Maurício Lorenção and Botacim, Luciana Aparecida and Sousa, Douglas Gonzaga de and Martinuzzo, Marx Bussular and Alixandre, Fabiano Tristão and Favarato, Luiz Fernando and Krohling, Cesar Abel and Guarçoni, Rogério Carvalho and Alixandre, Ricardo Dias and Fornazier, Maurício José (2022). Determining the minimum size of experimental plot for evaluating field parameters for Arabica coffee Research, Society and Development, 11, 1-9. Reviewed. No data.

Zhang, R and A. W. Warrick, and D. E. Myers (1994). Heterogeneity, plot shape effect and optimum plot size. Geoderma, 62, 183-197. Reviewed. No data. Oddly, they appear to use data from Kuehl & Kittock, but there is no data in that paper.

Zuber (1942). Relative Efficiency of Incomplete Block Designs Using Corn Uniformity Trial Data. Agron Journal, 34, 30-47. Reviewed. Limited data, 3 reps of 4x5.

Zuhlke, Thomas A. and Gritton, E.T. (1969). Optimum Plot Size and Shape Estimates for Pea Yield Trials. Agron. J., 61: 905-908. Reviewed. No data.

Zuhlke, Thomas A. and Gritton, E.T. (1970). Relative Precision of Different Experimental Designs and Number of Replications in Pea Yield Trials. Agron J., 62, 61-64. Reviewed. No data.

patterson hunter 1983