Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (4): 729-735.DOI: 10.3969/j.issn.1004-1524.2023.04.01

• Crop Science • Previous Articles     Next Articles

Effects of shading on agronomic characters, yield and nitrogen metabolism of 10 vegetable soybean varieties

TAN Shuxia1,2(), ZHAO Taodi1, YANG Hao1, NING Kejun1, LIU Li1, HE Qingyuan1, HUANG Shoucheng1, SHU Yingjie1,*()   

  1. 1. College of Agriculture, Anhui Science and Technology University, Fengyang 233100, Anhui, China
    2. Bureau of Rural Revitalization of Shitai County, Shitai 245100, Anhui, China
  • Received:2022-02-13 Online:2023-04-25 Published:2023-05-05

Abstract:

In order to screen out suitable vegetable soybean varieties for intercropping with high stem crops, 10 vegetable soybean varieties were selected as test materials. The effects of 50% shading at either four leaf stage or early flowering stage on agronomic characters, yield and root nitrate nitrogen ( NO 3 --N) content and nitrate reductase (NR) activity were explored. Besides, the shade tolerance of 10 vegetable soybean varieties were determined via comprehensive membership function method. The results showed that, the plant height, pod setting height, branch height and root NO 3 --N content of some vegetable soybean varieties were significantly (P<0.05) increased, yet the yield and NR activity were significantly decreased under 50% shading. Based on the constructed comprehensive membership function value, it was found that Huaixian17-08, Kaixian No. 3, Huaixiandou No. 5 and Cuilyuyu had stronger shade tolerance, and were suitable for intercropping with high stem crops.

Key words: vegetable soybean, shade tolerance, agronomic traits, yield, nitrogen metabolism

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