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根据抗旱指数（ＤＩ）的概念及分类标准，引进１８个小麦品种，分别在河南省三大生态类型旱区试验，测定ＤＩ值，筛选出各区的抗旱品种。豫西红土丘陵旱区抗旱品种为：郑花７６，西安８号，运城８３１，冀５４１８，与对照豫麦８号相比，平水年增产１９．４％～３０．４％，差异达显著或极显著水平，干旱年降水利用率提高１７．８％～２８．４％，耗水系数减少１５．１％～２２．２％；豫北火龙岗旱区抗旱品种为豫麦８号，衡水７００４；郑州沟壑旱区抗旱品种为西安８号，平水年比对照豫麦８号增产２１．１％。两年试验结果初步表明：ＤＩ值可作为小麦抗旱性的可靠指标。
According to the conception and classification criteria of drought resistance index (DI), 18 wheat cultivars were introduced and tested in three ecotype arid areas in Henan Province. The DI value was determined and the drought resistant varieties in each area were screened out. Compared with the control Yumai 8, the drought-resistant cultivars in the hilly-hilly loess hilly areas of Zhengxi 76: Zhenghua 76, Xi’an 8, Yuncheng 831 and Ji 5418 increased 19.4% -30.4% The annual rainfall utilization rate increased by 17.8% -28.4% and the water consumption coefficient decreased by 15.1% -22.2%. The drought-resistant cultivars in Yuelong-Arid-arid zone of Yubei were Yumai 8, Hengshui 7004 ; Drought-resistant varieties in the drought-stricken areas of Zhengzhou were Xi’an No. 8, and increased by 21.1% compared with the control Yumai 8 in the plain water years. Two years preliminary results show that: DI value can be used as a reliable indicator of drought resistance in wheat.