您好，欢迎访问安徽省农业科学院 机构知识库！

Optimal nitrogen regimes compensate for the impacts of seedlings subjected to waterlogging stress in summer maize

文献类型： 外文期刊

作者： Wu, Wenming 1 ; Wang, Shiji 1 ; Chen, Hongjian 1 ; Song, Youhong 2 ; Zhang, Lin 1 ; Peng, Chen 1 ; Jing, Lili 1 ; Li, Jin 1 ;

作者机构： 1.Anhui Acad Agr Sci, Tobacco Res Inst, Maize Res Ctr, Hefei, Anhui, Peoples R China

2.Anhui Agr Univ, Sch Agron, Hefei, Anhui, Peoples R China

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2018 年 13 卷 10 期

页码：

收录情况： SCI

摘要： A field experiment was performed to explore the compensation effects of different nitrogen (N) regimes on the growth and photosynthetic capacity in different leaf layers of the summer maize hybrid of LuYu9105 under waterlogging at the seedling stage. The results showed that waterlogging significantly decreased the maximum green leaf area (gLA) by 10.015.3% and 9.3 similar to 22.5%, mainly due to the reduction in the below-ear layer leaves at the silking stage in 2014 and 2015, respectively. Waterlogging also significantly decreased the ear leaf photosynthetic rate (P-N), and F-v/F-m, F-v/F-a, Phi(PSII) and qP at the below-ear layer leaves at the mid- and late-filling stages, which was accompanied by a reduction in the duration of grain-filling (T) by 2.6 similar to 5.9%, thus resulting in a loss of grain yield by 7.0 similar to 18.5%. Interestingly, a shift in N from basal application to topdressing at the big flare stage was shown to compensate the adverse effects of waterlogging by through increased gLA and leaf photosynthetic capacity at the ear layer and the above-ear layer, as well as a greater grain-filling rate, resulting in an increase in grain yield by 9.9 similar to 27.0% and 17.8 similar to 25.8% compared to other N treatments. Therefore, this study showed that optimal nitrogen regimes during maize growth are capable of compensating for the impacts caused by waterlogging at the seedling stage.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：安徽省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台