Comparative experiment of soybean varieties in Nanyang City
A variety comparison experiment on 9 soybean varieties,including Zhengdou 196,Pudou 206,and Qi-huang 34 was conducted in Nanyang City,Henan Province.The growth process,plant traits,seed traits,and yield were analyzed as indicators.The results showed that the top 5 varieties in terms of yield in the experimental field were Qi-huang 34(4 325.3 kg/hm2),Zhonghuang 37(4 015.6 kg/hm2),Pudou 206(3 871.2 kg/hm2),Zhoudou 46(3 816.3 kg/hm2),and Zhonghuang 61(3 425.6 kg/hm2),with a total growth period of 110-117 days.In terms of plant type,except for Zhou-dou 46 which was compact,the other four varieties were convergent.Except for Pudou 206 and Zhonghuang 37,which had sub limited pod setting characteristics,the rest had limited pod setting habits.In terms of seed characteristics,Zhou-dou 46 had yellow round and brown navel seeds,while Qihuang 34 had yellow oval and black navel seeds.The other three varieties had yellow oval and brown navel seeds.Except for Qihuang 34,which had no luster,the other four variet-ies show a faint or glossy appearance.This indicates that the agronomic and yield structure factors of five varieties,in-cluding Zhengdou 196,are relatively coordinated and can be promoted for planting in the study area and similar ecologi-cal locations.