中国农学通报2025，Vol.41Issue(27)：21-27,7.
黄淮海地区夏玉米品种耐阴性筛选
Screening of Shade-tolerant Summer Maize Varieties in Huang-Huai-Hai Region
摘要
Abstract
To select shade-tolerant maize cultivars adapted to low-light conditions in the Huang-Huai-Hai region and thereby improve maize yield in this area,twelve widely cultivated maize cultivars in the region were selected as experimental materials.These cultivars were subjected to a 6-day shading treatment starting at the tasseling stage,and indicators,including silk number,dry matter accumulation,and yield,were measured.The results showed that shading significantly reduced the silk number,silk length,dry matter accumulation,and yield,with the extent of reduction varying among different cultivars.On average,yield decreased by 91.64%,corresponding to a reduction of 11.79 t/hm2.Further analysis revealed that ear diameter,ear length,number of kernels per ear,1000-kernel weight,silk number,and silk length were all significantly positively correlated with yield,indicating that these indicators could serve as effective criteria for evaluating shade tolerance in maize.Based on a comprehensive evaluation of shade tolerance traits and cluster analysis,'Jingke 968','Denghai 605',and'Xundan 20'were ultimately identified as shade-tolerant cultivars.关键词
夏玉米/品种/耐阴性/遮光处理/产量/花丝/聚类分析Key words
summer maize/variety/shade tolerance/shading treatment/yield/silk/cluster analysis分类
农业科技引用本文复制引用
韩文文,姜燕花,张欣茹,吴志华,石凌鑫,唐志艺,崔彦宏,杜雄,高震..黄淮海地区夏玉米品种耐阴性筛选[J].中国农学通报,2025,41(27):21-27,7.基金项目
国家自然科学基金青年科学基金项目"弱光胁迫降低夏玉米穗粒数的生理机制"(32101829) （32101829）
河北省玉米产业技术体系"两熟区玉米节本增效岗位专家"(HBCT2023020203) （HBCT2023020203）
国家重点研发计划"黄淮海小麦-玉米(大豆)产能提升技术研发及集成示范"(2023YFD2301500). （大豆）
