通过３年对９８６份新育成小麦品种（系）抗旱性鉴定研究结果分析，将参试品种根据其性状抗旱指数的等级数值之和划分为抗旱型、中间型和不抗旱型；根据小麦性状对不同时期的水分胁迫反应的稳定性分为综合性状稳定型、穗数稳定型、粒数稳定型、株高稳定型和千粒重稳定型。这种划分对实现小麦品种合理布局，充分发挥品种增产作用和育种上有效地选择亲本种质具有极其重要的应用价值。 According to the results of drought resistance identification of 986 newly-bred wheat cultivars (lines) over the past three years, the tested cultivars were classified into drought-resistant type, intermediate type and non-drought-resistant type based on the sum of the numerical values ​​of drought resistance index of their traits. According to the wheat traits The stability of the water stress response in different periods can be divided into stable type, spike number stable type, grain number stable type, plant height stable type and 1000-grain weight stable type. This division of wheat varieties to achieve a reasonable layout, give full play to the role of varieties and breeding on the effective selection of parent germplasm has extremely important application value.