红小豆、大豆、菜豆的粒重和初期生育的相关性

红小豆在3叶期的叶面积和个体重中为最小，菜豆最大。3种豆类的两种性状与粒重之间都呈现了很高的正相关关系。但是，3叶期的叶面积和干物重的增加速度与粒重之间只有大豆呈有意正相关关系，红小豆和菜豆没有有意相关关系。本研究显示了出苗后的红小豆初期生育状况不如大豆和菜豆。从以上的结果可以判断粒重对叶面积以及干物重的影响到3叶期为止。

Relationship between Grain Weight and Primary Generation of Red Bean, Soybean and Kidney Bean

Red bean has the smallest leaf area and leaf weight in trefoil stage, while kidney bean has the largest. High positive correlation between these two traits and grain weight has shown in all of the three kinds of beans. However, only the increasing speed of leaf＂ area and dry weight of soybean has significant positive cor- relation, while red bean and kidney bean has not. This study has shown that soybean and kidney bean have stronger fertility than red bean after emergence. Thus we can make the conclusion that the grain weight can only influence leaf area and dry weight before trefoil stage.