Comparative analysis of yield traits for soybean varieties tested in southern Huang-Huai region from 2016 to 2021
To appropriate soybeans arrangement in southern Huang-Huai region and to improve the develop-ment of high-yield breeding,yield and main agronomic traits of 177 varieties from different origins were evaluated and analyzed in southern Huang-Huai region in 2016-2021.Results showed that the number of effective branches exhibited the greatest variation among the traits,followed by plant height,and bottom pod height.In contrast,the whole growth period showed the smallest variation.The average yield for the testing varieties ranged greatly from 2735.00-2918.00 kg·hm-2 during 2016-2021,with the highest average yield in 2020.Among different provinces,yield had extremely significant positive relation with seed weight per plant.Varieties tested in Shandong sites showed higher plant height,main stem node number,number of effective pod,seeds number per plant,seed weight per plant,and 100-seed weight than others,reaching 3156.32 kg·hm-2 for average yield.Varieties at Anhui sites showed the lowest in average yield(2471.15 kg·hm-2).The correlation analysis showed that the average yield had ex-tremely significant positive relation with seed weight per plant from different-originated varieties.Variety with the highest average yield(2927.41 kg·hm-2)was found in Henan,followed by that from Jiangsu.Among the breeding sectors,the varieties with the highest average yields(3063.87 kg·hm-2)came from the Institute of Industrial Crops at Henan Academy of Agricultural Sciences,with average yield of 3100.42 kg·hm-2 and 3491.20 kg·hm-2 in Henan and Shandong sites respectively.Results also showed that soybean yield differed greatly among different provinces in southern Huang-Huai,and it was tightly associated with local cultivation environments as years,origins and ge-netic backgrounds of varieties.
万方数据
维普
