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对玉米杂交种绵单一号及其亲本81565的耐旱性进行了研究。结果表明：绵单一号及其亲本81565的产量性状抗旱系数分别为0．9425及0．9381，其ASI为1，耐旱性强，在西南山区玉米遗传育种及玉米大面积推广方面均具有重要价值。
The drought tolerance of maize hybrid single cultivar Wanyuan No.1 and its parent 81565 was studied. The results showed that the drought resistance coefficients of yield traits of Mian Dao No.1 and its parent 81565 were 0.9425 and 0.9381, respectively. The ASI was 1, and its drought tolerance was strong. It was important in maize genetic breeding and maize popularization in southwest mountainous area value.