大粒型小麦的产量及各产量性状间的相关分析

本文选用了二十个冬小麦品种(系)(大粒型)进行相关分析和通径分析。结果表明,所考察的五个性状中穗粒数与小区产量呈负相关,而其四个性状与小区产量呈正相关,其中千粒重与小区产量的相关性最强。通径分析表明,千粒重对小区产量的直接和总通径系数都为最大。本文还讨论了大粒型小麦群体中如何利用和发挥小麦的粒重优势,协调各性状之间的关系。

CORRELATION ANALYSIS BETWEEN YIELD AND OTHER YIELD TRAITS OF WHEAT WITH BIG KERNEL

20 winter wheat cultivars or lines with big kernel were chosen tostudy their relationship between kerner weight and other yield traits. Theresults showed that the kernel number per ear was negatively correlatedwith plot yield, its coefficient was -0.5916, the other four traits were allpositively correlated with plot yield, kernel weight's eoefficient was thehighest, It is 0.3049. Pathanalysis showed direct and total path coefficientbetween kernel weight and plot yield was the most significant. This paperalso discussed that how to utilize wheat cultivars with big kernel to gethigher yield.