Abstract:
To obtain the varieties of vegetable soybean suitable for Jiaodong Peninsula. 63 vegetable soybean varieties from different areas were selected and sown in the field during 2019—2021 in this experiment.During the fresh-eating period, 13 agronoinic traits related to yield were investigated and their correlation with yield of fresh pods were canied out. The results showed that the variation coefficient was ranged from 9.66% to 86.53%. Except for plant height, the number of pods eaten by insects, dry weight and standard pod width, the yield per plant were significantly correlated with the other yield agronomic traits investigated. The order of correlation degree from high to low was: pod number per plant>pod weight per plant>fresh weight>dry weight>effective branches>standard pod length>standard pod width>main stem node number>standard pod height>plant height> one-pod number>the number of pods eaten by insects. By the equal weight and weighted association analysis, seven best varieties were selected, including Liaoxian 3, Jindou 39, Nannong 29, Liao08m13-1h, Shoudou 38, Yindou 9701, and Nannong 95C-13, which will establish a solid foundation for the popularization and cultivation of vegetable soybean in Jiaodong area. This study has laid a solid foundation for the promotion and planting of vegetable soybeans in Jiaodong region.