Contribution of ear photosynthesis to grain yield under rainfed and irrigation conditions for winter wheat cultivars released in the past 30 years in North China Plain

查看全文 作　　者：WANG Yun-[1]qi;XI Wen-[1]xing;WANG Zhi-[1]min;WANG [1]Bin;XU Xue-[1]xin;HAN Mei-[1]kun;ZHOU Shun-[1]li;ZHANG Ying-[1]hua

机构地区：[1]College of Agronomy and Biotechnology, China Agricultural University

出　　处：《Journal of Integrative Agriculture》索引2016年第15卷第10期,共10页

基　　金：supported by the National Natural Science Foundation of China (31401297);the National Key Research and Development Program of China (2016YFD0300105);the Chinese Universities Scientific Fund (2016NX002);the Earmarked Fund for Modern Agro-Industry Technology Research System, China (CARS-3) 摘　　要：To understand the contribution of ear photosynthesis to grain yield and its response to water supply in the improvement of winter wheat, 15 cultivars released from 1980 to 2012 in North China Plain(NCP) were planted under rainfed and irrigated conditions from 2011 to 2013, and the ear photosynthesis was tested by ear shading. During the past 30 years, grain yield significantly increased, the flag leaf area slightly increased under irrigated condition but decreased significantly under rainfed condition, the ratio of grain weight:leaf area significantly increased, and the contribution of ear photosynthesis to grain yield changed from 33.6 to 64.5% and from 32.2 to 57.2% under rainfed and irrigated conditions, respectively. Grain yield, yield components, and ratio of grain weight:leaf area were positively related with contribution of ear photosynthesis. The increase in grain yield in winter wheat was related with improvement in ear photosynthesis contribution in NCP, especially under rainfed condition. 关键词：wheat ear photosynthesis grain yield improvement of cultivars

相关文献

参考文献（45）
引证文献（24）
耦合文献（63）

参考文献(45)

引证文献(24)

耦合文献(63)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Contribution of ear photosynthesis to grain yield under rainfed and irrigation conditions for winter wheat cultivars released in the past 30 years in North China Plain

参考文献(45)

引证文献(24)

耦合文献(63)

用户提示