典型相关在水稻单株生产力与综合性状选择上的应用

The Usage of The Canonical Correlation Analysis of Paddy Rice between The Single Plant’s Yield and The Selection of The Plant Comprehensive Characters

本文通过对北方 40 个水稻品种 13 个性状指标的典型相关分析,结果发现,水稻单株生产力与综合植株性状、产量构成因素之间的典型相关均达到极显著水平,相关系数分别为 0.909 48、0.871 03,它们所包含的信息分别占总信息量的 79.0%和 92.7%。穗部性状与粒型的典型相关系数为 0.827 39,达极显著水平,所包含的信息占总信息量的 62.3%。在这些性状中起主要作用的指标是经济产量(X2)、穗数(X3)、穗粒数(X4)、穗长(X7)、穗颈长(X8)、1 次枝梗的比例(X9)及谷粒长度(X10)。

This article presented the result of canonical correlation analysis between 13 characteristics of 40 paddy rice cultivars. It was highly significant correlation between the single plant’s yield and the comprehensive characters and the yield components and the plant characteristics’ canonical correlation coefficients, 0.90948 and 0.87103,together up to 79.0% and 92.7% of the total correlation. It was also highly significant correlation between Ears characters and grain types with 0.82736.The analysis showed that the most important plant characteristics on affecting a single plant’s yield were panicles(X3) and the number of grain in a panicles (X4) and the length of per panicle and so on.