不同类型大豆性状间的灰色关联度分析

应用灰色关联度方法对春、夏、秋三种类型大豆各性状间的相互关系作了分析，结果表明：分枝数、总荚数与出苗－开花日数关系密切，单株粒重、百粒重、种子蛋白质含量与开花－成熟日数关系密切，株高、节数与全生育日数关系密切；单株产量与节数和分枝数有关．与毛色、粒形密切相关；种子蛋白质含量与种子大小、节数、毛色、粒形、粒色及植株含氮量紧密相关．

ANALYSIS OF GREY RELATED DEGREE AMONG SOYBEAN CHARACTERS IN DIFFERENT TYPES

In this paper,grey related degree analysis was used to analyse the relations among characters of soybean in spring,summer and autumn types. The qualitative characters were given in numerical values. The results showed: 1 )Influences of different stages of total duration on characters were different.Close relations were present between number of branches,total pods and the days of emergence to flowering;between productivity per plant, seed protein, 100 seeds weight and the days of flowering to maturity;between plant height, number of nodes and total duration. 2). Productivity and yield components were directly or indirectly related to number of branches and nodes (plant height ). 3). Seed protein content was closely related with plant N and 100 seed weisht. 4 ). Productivity and seed protein were closely related to pubescence colour and seed shape,and seed protein was also closely related to seed coat colour. The brown pubescences had higher productivity and seed protein than the grey ones. Seed protein of the oblates and the ellipses,the greenishes and the yellows were higher;but that of the long ellipses,the blacks were lower.