我区是北方主要干旱地区之一,旱地小麦栽培面积占小麦总播种面积的70％,而高寒干旱丘陵山区占80％以上。当地劳动人民在长期与干旱的斗争中选育出小红麦、小红芒麦、火燎麦、大红袍及大白皮等很多优良的耐旱品种,这些品种在当地气候生态条件下累积了许多有益的抗旱基因。在育种工作中,要以它们为基础材料选育出新的优良抗旱品种还必须对其形态特征与生理特性进行研究。 My area is one of the major arid areas in northern China. The cultivated area of ​​dryland wheat accounts for 70% of the total sown area of ​​wheat, while the alpine and hilly mountainous area accounts for more than 80%. The local working people have bred many excellent drought-tolerant varieties of small red wheat, small red mangrove, longan, Dahongpao, and Dapai Pi in their long-term struggle against drought. These cultivars have accumulated many successes under local climatic and ecological conditions Beneficial drought resistance genes. In the breeding work, we must use them as the basic material to breed new fine drought-resistant varieties must also study its morphological and physiological characteristics.