我省旱地面积大,小麦产量低,积极筛选抗旱育种亲本材料或直接用于生产的品种(系)十分迫切,为此采用不灌水产量与灌水产量的比值,测定抗旱生理指标,以及观察形态特征等方法来研究小麦抗旱性和筛选小麦抗旱材料。抗旱品种柯料在不利条件下电导率比其它品种材料的电导率低,气孔多,叶面积小,且细长、绵软,幼苗叶片均有茸毛,抗旱系数大(即不灌水产量与灌水产量的比值大)。 In our province, the area of ​​dry land is large and the yield of wheat is low. Therefore, it is very urgent to actively screen drought-resistant breeding parental material or directly used in the production of varieties (lines), therefore the ratio of non-irrigated yield to irrigated yield is used to determine physiological indexes of drought resistance and morphological characteristics And other methods to study the drought resistance of wheat and screen wheat drought-resistant materials. Compared with other varieties, the conductivity of the drought-tolerant cultivars Koji was lower than those of other cultivars, with more stomata and smaller leaf area, and had slender, soft and seedling leaves with a large coefficient of drought resistance (ie, no irrigation and irrigation) Ratio is large).