Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2007, Vol. 23 ›› Issue (2): 437-437.

Special Issue: 油料作物

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Effects of Drought Resistant Seed Coatings on Drought Resistance and Yield of Soybean

Li Yuzhong, Zhong Xiuli, Li Tianhua   

  • Online:2007-02-05 Published:2007-02-05

Abstract: Field experiments were carried out to evaluate the effects of 2 kinds of drought resistant seed coatings (DRSC) on enhancing drought resistance and yield. Seed germination, growth, yield formation and some parameters relative to drought resistance were investigated and measured in soybean plants treated with and without DRSC. The results showed that both the 2 kinds of DRSC effectively promoted drought resistance and yield in soybean. For soybean plants treated with DRSC 1, seed germination increased by 4.8%, plant height, 4cm, root nodule numbers, 13, yield, 7.3%, and net photosynthetic rate was significantly higher than cK. While for those treated with DRSC 2, seed germination increased by 5.2%, plant height, 5.6cm, root nodule numbers, 65, yield, 6.3%, transpiration rate and water loss rate of leaves decreased, root volume and root/shoot ratio all increased. The study demonstrated that DRSC 2 is more effective in improving drought resistance, while DRSC 1, in promoting photosynthesis and increasing yield.

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