Simpler methods for estimating yield components of transplanted rice

Abstract

Yield components namely, paniclcs/hill, spikelcts/hill, percent filled grains and 1000 grain weight and yield of transplanted rice were estimated by three different methods. All hills in two methods and in one method, thirty randomly selected hills within an experimental plot were used. Under each method, samples of five different sizes were considered but the sample size did not show any significant effect on the yield components. The maximum deviation of the yield based on estimated yield components from the actual yield was only 5.86% indicating a good agreement of the yield estimated by any of the methods with the actual yield. Only one hill nearest to the average number of panicles per hill out of thirty randomly selected hills from a transplanted rice field seems to be adequate for estimating the yield components and hence the grain yield which is operationally simple and economic (time saving) compared to other two methods.