On Some Aspects of Plot Techniques in Field Experiments on Tomato (Lycopersicon esculentum mill.) in Soils of Kashmir
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Date
2007
Authors
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Publisher
SKUAST Kashmir
Abstract
A uniformity trial on S-II variety of tomato (Lycopersicon escueantum mill.) was conducted at the RRS & FOA SKUAST-K, Wadura Campus Sopore to workout optimum size and shape of the experimental plot using maximum curvature and Fairfield Smith’s law. The trial indicated that coefficient of variation decreased with the increase in plot size in either direction, but decrease was more in the North-South direction rather than East-West direction. After mathematical verification, the optimum plot size was obtained to be 8m2 with the plot shape 4m x 2m. The relative efficiency of the obtained plot size was recorded as 35 percent.
The fertility contour map of the experimental trial, based on six clusters, showed that fertility gradient does not follow a systematic pattern, but appears in patches and over all fertility gradient is in north-south direction. The effect of shape and size of plots/blocks investigated in the study revealed that the optimum plot size of 8m2 with shape (4m x 2m) of the block of size 10 can achieve 19.7% to 56.16% relative information within 2 to 5 replications.
Description
M.Sc Thesis submitted to SKUAST Kashmir
Keywords
Size and shape of plots, Uniformity trials, Fertility gradient, Agricultural Statistics