为进一步推进抗旱耐逆小麦品种的快速筛选及其推广应用，提高耐旱育种效率，通过半干旱雨养农业区田间生产条件下灌浆期小麦气孔性状多年多点的测定，明确小麦灌浆期抗旱耐逆性判定规则，联合主成分分析和隶属函数值方法，从适用范围、规范性引用文件、术语和定义、技术原理、基本要求、田间管理、气孔性状调查分析、评价指标的计算及评价等级等方面总结出雨养农业区冬小麦品种灌浆期抗旱耐逆性综合评价技术规程。

In order to further promote the rapid screening and popularization of drought to lerant wheat varieties and improve the efficiency of drought to lerance breeding, the evaluation rules of drought to lerant wheat at filling stage were clarified by multi-year and multi-point determination of wheat stomata characters of flag leaf under field production conditions in semi-arid rain-fed agricultural areas. By combining with the principal component analysis and membership function value method, a comprehensive evaluation method for drought tolerance of winter wheat was summarized from aspects such as the applicable range, normative references, terms and definitions, technical principles, basic requirements, field management, stomatal trait investigation and analysis, calculation of evaluation indicators, and classification of evaluation levels.

S512.1

甘肃省农业科学院农业科技创新专项重点研发计划(2022GAAS11)； 国家自然科学基金地区基金项目(31860378)。