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Relative Efficiency of Plot Sizes and Numbers of Replications as Indicated by Yields of Orchardgrass Seed in a Uniformity Test 1
Author(s) -
Rampton H. H.,
Petersen Roger G.
Publication year - 1962
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1962.00021962005400030019x
Subject(s) - split plot , yield (engineering) , mathematics , plot (graphics) , agronomy , statistics , biology , physics , randomized block design , thermodynamics
Synopsis Increasing replications or increasing plot size permitted detection of smaller differences in yield of orchardgrass seed. Accuracy of yield estimates changed most rapidly with change in replications. Hence, on a given area, most accurate yield estimates would result with plots of minimum size and increased replications. Plot cost:land cost relationships showed that as land cost increased, optimum plot size decreased. Optimum plot size for close‐drills was about half that for 3‐foot rows.