Abstract
In the previous paper (report 15), it was reported that the rice yield-components per hill in the order of culm length could be represented in the from of a zero-order, primary or curvilinear regression. The present report refers to the fact that the positions of the selected panicles in the order of culm length which may serve as a basis for estimating the rice yield-components per hill can be calculated by using the above-mentioned regression equation. The results of our calculation are as follows; [table] The positions of the selected panicles in the order of culm length vary according to the number of panicles per hill. Relation between the rank of the selected panicles in culm length and the rice yield-components per panicle arouses the greatest interest in our serial experiments. No significant difference was found in the mean value between the hill and the selected panicles in pairs surveyed through the simplified method. Based upon the results of present experiment, it can be concluded that the rice yield-components per hill can be estimated well using the simplified survey of the selected panicles in pairs.
