采用盆栽的方法,依据隶属函数值法,对18个大豆品种分别进行营养生长期和生殖生长期的抗旱鉴定;同时采用田间原位测定的方法,依据抗旱系数和产量,对这18个品种分别种植在半干旱地区(朝阳)和湿润-半湿润地区(沈阳)进行全生育期的抗旱鉴定。结果表明:依据隶属函数值法共筛选出营养生长期较强耐旱型(2级)品种2个,分别是辽豆24和锦豆36;生殖生长期较强耐旱型(2级)品种2个,分别是辽豆26和铁豆37;全生育期抗旱鉴定表明铁豆49为强耐旱品种;综合全生育期的抗旱系数和耐旱隶属函数值,筛选出3个优良大豆品种,分别为辽豆26、铁豆37和铁豆49,建议在半干旱地区推广种植。研究认为对大豆种质耐旱性鉴定采用隶属函数值法及全生育期综合鉴定的方法较为准确,与营养生长期相比生殖生长期耐旱性结果鉴定与全生育期鉴定结果更为一致。 According to the membership function method, 18 soybean cultivars were identified as drought-tolerant in vegetative and reproductive growth stages respectively. In the meantime, the 18 cultivars Planting in the semi-arid areas (Chaoyang) and humid - sub-humid areas (Shenyang) during the whole growth period drought identification. The results showed that there were 2 strong and drought-tolerant (2nd grade) cultivars in Liaozu 24 and Jindou 36, respectively. The stronger and the drought-tolerant (2nd grade) cultivars in reproductive growth stage 2 were Liao Dou 26 and Fudou 37, respectively. Drought resistance identification during the whole growth period indicated that Dadou 49 was a strong drought-tolerant variety. Three drought-tolerant membership functions were selected to synthesize three elite soybean cultivars, Respectively Liao Dou 26, Iron 37 and Iron 49, it is recommended to promote planting in semi-arid areas. The study indicated that the identification of drought tolerance in soybean germplasm was more accurate by using the membership function method and the comprehensive identification during the whole growth period. Compared with the vegetative growth stage, the identification of drought tolerance of the germplasm was more consistent with the identification results of the whole growth period.