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以我国目前生产应用的玉米杂交种为材料,在干旱处理和浇水(对照)条件下,根据成熟期产量和产量构成因素的耐旱指数分析其耐旱性。以耐旱指数为依据将供试材料分为高、中、低3种抗旱类型,表现高抗旱的材料有成单30、川单21、川单25、川单27、丹玉39、登海9、高农901、冀玉9、晋单42、农大108、强盛31、先玉335、新丹2100和豫玉26;表现中抗旱的材料有东德9号、吉单209、浚单20、蠡玉16、临奥1号、鲁单9002、鲁玉13、农大3138、强盛5、铁单10、秀青73-1和中单2号。不同材料的耐旱性表现不同,不同性状的耐旱性也表现不同,说明玉米耐旱性改良具有较大潜力。
Based on drought tolerance and watering (control), the maize hybrids currently used in China were used to analyze the drought tolerance index according to the drought tolerance index of maturity yield and yield components. According to the drought tolerance index, the tested materials were divided into three types of high, medium and low drought resistance types, and the materials with high drought resistance were 30, Chuan Shan 21, Chuan Shan 25, Chuan Shan 27, Dan Yu 39, Deng Hai 9, GaoNong901, JiYu9, JinDian42, Nongda 108, Qiangsheng31, Xiangyu355, Xindan2100 and Yuyu26; the performance of the drought-resistant materials are East Germany 9, Ji Dian 209, Xundan 20 , Yu Yu 16, Pro Austrian 1, Lu Dan 9002, Lu Yu 13, Nongda 3138, strong 5, iron single 10, Xiuqing 73-1 and in the single on the 2nd. Drought tolerance of different materials showed different performance of different traits of drought also showed different, indicating that maize drought has greater potential for improvement.