Abstract:
In order to screen excellent vegetable soybean varieties which are suitable for late season cultivation in the experimental area and provide excellent parents for local breeding and improvement, 10 introduced vegetable soybean varieties "Maodou 64" "Daqingdou" "Chunfengjizao" "Maodou 3" "Wuyeheizi" "Zhexian 12" "Mindou 7" "Mindou 10" "Shanghaiqing" and "Cuilübao" were used as experimental materials. Through correlation analysis of different yield traits and comprehensive evaluation of multiple appearance quality traits. The results showed that the yield variation range in the experimental tested vegetable soybean varieties was 627.5-1 092.2 kg·(667 m~2)
-1, and there were significant differences in yield among varieties. Among them, "Maodou 64" "Shanghaiqing" "Mindou 7" and "Maodou 3" performed outstandingly in yield, with "Maodou 64" having the highest yield, followed by "Shanghaiqing"; The germination rate(r=0.800
**), whole growth period(r=0.815
**), plant height(r=0.794
**), number of main stem nodes(r=0.769
**), and standard pod thickness(r=0.764
**) of the tested vegetable soybean varieties showed a highly significant positive correlation with yield; A comprehensive ranking of the membership functions for the appearance quality traits of 10 tested vegetable soybean varieties showed that "Shanghaiqing" had fresh green pods, plump pods, and the comprehensive evaluation of appearance quality traits was the best, followed by "Maodou 64". "Shanghaiqing" and "Maodou 64" were more in line with the appearance quality consumption needs of domestic vegetable soybeans compared to "Maodou 3" and "Mindou 7". In summary, "Maodou 64" and "Shanghaiqing" varieties can be selected as the main cultivated varieties of late season vegetable soybeans in the experimental area and as parent materials for breeding excellent vegetable soybean varieties.