Abstract: In the identification test of new mung bean[Vigna radiate （L.） R. Wilczek] varieties in Henan Province in 2019, Zhenglv No. 20 had excellent field traits, good resistance and high yield, and the yield of Zhenglv No. 20 was higher than that of the control variety Zhenglv No. 8 in four test sites. In order to further investigate the high and stable yield of Zhenglv No. 20, the agronomic and yield traits of mung bean from the identification test of new varieties in Henan Province in 2019 were analyzed by GGE biplot, and the variability and correlation of 9 traits of mung bean varieties were analyzed. The results showed that the variation coefficient of main stem branch number, pod number per plant, plant height, and main stem nodes number of Zhenglv No. 20 varied significantly at the experimental sites. The node number on the main stem was significantly positively correlated with the growth period, significantly negatively correlated with yield, and positively correlated with plant height. The yield was positively correlated with the main stem branch number, pods number per plant, pod length and seed number per pod. The results of good productivity and stability showed that Zhenglv No. 20 was a new mung bean variety with a high and stable yield, which was suitable for promotion.

Key words: mung bean[Vigna radiate （L.） R. Wilczek], Zhenglv No. 20, correlation, GGE biplot, good productivity, stability