Li Guiquan, Zhang Hai-Yan, Ji Lan, Zhao Erkai, Liu Jianbing, Li Ling, Zhang Jiarong
College of Agronomy, Shanxi Agricultural University, Taigu 030801, Shanxi, China.
Ying Yong Sheng Tai Xue Bao. 2006 Dec;17(12):2408-12.
The drought-resistance of ten soybean cultivars of various ecotypes was investigated by pot culture and in field. At the stages from flowering and podding, the physiological and ecological indices related to drought-resistance were measured and analyzed under normal and water stress conditions. Taking each drought-resistance coefficient as an index to measure single drought-resistance capacity, all drought-resistance coefficients were synthesized into several new independent comprehensive indices by using principal component analysis. On the bases of above results, subordinate values of comprehensive indices were worked out by subordinate function, on which, the drought resistance of different soybean cultivars or lines could be evaluated. By means of this method, Jinda 74 and Jinda 53 were evaluated as two cultivars with strong drought-resistance. The evaluation results corresponded well to the fact.
