Comprehensive Analysis of Physiological Indexes for Drought Resistance in Different Soybean Varieties

doi:10.3321/j.issn:1000-7091.2001.03.009

Abstract

Abstract: In this paper,twelve soybean varieties was selected., four physiological indexes related to drought resistance in flowering poding stage were studied in both normal and drought conditions.The results were as follows:The weighed average of subordinate function(D) values of four physiological indexes-relative water content(RWC),relative conductivity,net photosynthesis velocity (Pn) and the activity of superoxide dismutase(SOD) and drought resistance of Soybean was positively significant(r=0 877 3,P0 01).D value could be used to the evaluation of drought resistance for soybean varieties.At last,methods of soybean breeding for high yield and drought resistance were discussed.

Key words: Soybean, Drought resistance, Physiological index, Comprehensive analysis

CLC Number:

S55.101

KONG Zhaosheng, WU Yunshuai, YUE Aiqin, LI Guiquan, PENG Yongkang. Comprehensive Analysis of Physiological Indexes for Drought Resistance in Different Soybean Varieties[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(3): 40-45. doi: 10.3321/j.issn:1000-7091.2001.03.009.

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