CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2022, Vol. 44 ›› Issue (4): 780-789.doi: 10.19802/j.issn.1007-9084.2021190

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Evolution analysis of main agronomic traits, yield, quality and resistance of soybean varieties released in Jiangsu Province from 1982 to 2021

Yao XU(), Su-feng LENG(), Yu-ming ZHANG, Jin-hua SONG, Ke ZHAO   

  1. Jiangsu Seed Management Station, Nanjing 210036, China
  • Received:2021-07-07 Online:2022-08-25 Published:2022-08-30
  • Contact: Su-feng LENG E-mail:xuchenyao@163.com;973207156@qq.com


In order to accelerate soybean varieties improvement, this study analyzed the evolution of main agronomic traits, yield, quality and resistance of 101 soybean varieties (including 60 Huaibei varieties and 41 Huainan varieties) released in Jiangsu Province from 1982 to 2021. The results showed that plant height and node number of released varieties decreased with the year, and pods per plant, 100-seed weight increased with the year extremely significantly. Among them, the plant height of Huaibei varieties showed a extremely significant decrease. The yield of released varieties increased extremely significantly with the year of an average annual improvement of 21.08 kg·hm-2, and R2 greater than 0.600, showing an obvious ascending linear relationship. The protein content and oil content increased with the year, and the total protein and oil content increased significantly. Among them, the protein content, the total protein and oil content of Huaibei varieties increased extremely significantly. Correlation analysis found that yield appeared extremely significant negative correlation with growth periods, node number and pod height, significant negative correlation with plant height, but appeared extremely significant positive correlation with total protein and oil content, significant positive correlation with protein content, oil content and 100-seed weight. It means the reasonable shortening the growth period, reducing node number, plant height and podding height could promote yield, and the positive correlation between yield and quality could provide an effective way to high yield and quality soybean breeding.

Key words: soybean, released varieties, Jiangsu Province, yield, evolution analysis

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