河北省黑龙港流域小麦抗旱品种筛选

干旱缺水是制约河北省黑龙港流域小麦生产的首要环境因子，从适合该区域的小麦新品种中筛选和推广抗旱品种，对在该地区实现节水保粮和维持地下水红线具有重要意义。本研究以近年来河北省中南部审定的38个小麦品种为材料，设置冬后浇2水、1水和不浇水（0水）3个水分处理，于2017—2018、2018—2019年度在成安和辛集进行了大田条件下的抗旱品种筛选试验。结果表明：在大田生产中，可用以产量为基础的抗旱指数来评价品种的抗旱性；以抗旱指数结合高稳系数进行抗旱和稳定性协同评价时，筛选到轮选103、衡0628、衡9966、河农2063、衡5835、中信麦58等6个品种在多个环境中抗旱等级为抗及以上，且产量稳定性较好，石麦22、衡4399、衡观35、石麦15、鲁原502、泊麦7号等6个品种在多个环境中抗旱等级为抗及以上，且产量稳定性为中等。

Screening for drought resistant wheat varieties in Heilonggang Area of Hebei Province

Drought is one of the critical environmental factors affecting wheat yield in Heilonggang area, Hebei Province. It is of great importance, therefore, to identify drought\|resistant accessions from newly released wheat varieties to ensure food security and to save underground water resource used for ecological purpose. The objective of this study was to screen drought\|resistant varieties from 38 wheat varieties recently released in central and southern area of Hebei Province under field conditions treated with different water regimes. The test was carried out under field conditions at experimental stations of Cheng''an and Xinji counties during two growing seasons of 2017-2018 and 2018-2019. The results showed that, could be used to evaluate the drought resistance of wheat varieties under field conditions when drought index (DI) based on yield combined with high stability coefficient (HSC), and a total of six varieties were chosen as varieties with drought resistance and highly yield stability. Also, six varieties were selected as varieties with drought resistance but medium stability. The selection of these drought\|resistant wheat varieties had laid a crucial foundation for achieving water\|saving through biological way in the Heilonggang area.