麦套花生经济性状与产量遗传相关分析及通径分析

Genetic Correlation and Path Analysis between Economic Characters and Yield of Peanut Intercropped with Wheat

通过对14个河南省麦套花生品种(系)的经济性状与产量遗传相关分析与通径分析,结果表明,单株结果数、百果重、百仁重、饱果率与单株生产力呈极显著正相关;主茎高、侧枝长与单株生产力呈显著负相关。通径分析结果表明,各性状对单株生产力的直接贡献大小依次为:百仁重>饱果率>单株结果数>侧枝长>结果枝数>出米率>百果重>主茎高>总分枝数。河南省麦套花生高产育种目标是:选择单株饱果数多,百仁重高的大粒型品种。

The results of the genetic correlation and path analysis between economic characters and yield of Henan 14 peanut varieties intercropped with wheat showed as follows： the relations between the fruit number per plant, 100 - pod weight, 100 - kernel weight and the rate of full pods and the productivity per plant were remarkably positive, the height of main stem and length of primary branches had significantly negative correlations with productivity per plant. The sequence of total decision coefficient of various factors was. 100 -kernel weight〉rate of full pods〉 pod number per plant〉 lateral branch length〉 podded branch number per plant〉 shelling percentage〉100- pod weight;〉main stem height〉the number of branches.