抄録
The author studied the relation between the position of ovules in pods and their fertility, using a variety “Usui, ” in 1954. The ovules at the most proximal end of pods show the poorest fertility and then the most distal ovules follow them. The fertiitty of ovules increases very repidly as theirpositions approach to the center from both ends of the pods, and there are only little differences in fertility between the several positions near center. The most fertile position of ovules seems to situate at the more distal than the center. The percentage of ovule fertility as a whole was about 60%.
