Identification and screening method of field water-saving high-yield wheat varieties

The invention relates to an identification and screening method of field water-saving high-yield wheat varieties. The method involves morphological indexes and physiological indexes of wheat. According to the method, irrigation measures, including double irrigations (jointing irrigation and filling irrigation), single irrigation (jointing irrigation) and full rain-feeding, are taken during the whole growth period after wheat seeding, and morphological indexes of seed root, plant height and flag leaf, as well as physiological indexes of plot canopy temperature and chlorophyll content in the flag leaf are evaluated. High-yield varieties under different water-saving irrigation conditions can be screened and identified conveniently and quickly, and guidance is provided for breeding workers and production practice. 本发明涉及种田间节水高产小麦品种鉴定筛选方法,该方法包括小麦的形态指标和生理指标。小麦播种后采取全生育期灌2水（拔节水和灌浆水）、灌1水（拔节水）和完全雨养的灌水措施，评价种子根、株高、旗叶的形态指标，小区冠层温度和旗叶叶绿素含量的生理指标。本方法可以方便快捷的筛选鉴定出不同节水灌溉条件下的高产品种，为育种工作者和生产实践提供指导。