Effects of irrigation on nitrogen metabolism and yield of strong gluten wheat | 灌水对强筋小麦氮素代谢及产量的影响
2010
Li Xiao, Henan Agricultural University，Zhengzhou（China）, College of Life Science | Yao Zhanjun, AnYang University, Anyang（China） | Guan Tao, Henan Agricultural University，Zhengzhou（China）, National Engineering Research Center of Wheat
[Objective] The aim was to provide reference for the field irrigation management of high yield and quality cultivation of strong gluten wheat. [Method]Under field conditions, the effects of irrigation times on nitrogen metabolism and yield of strong gluten wheat cultivar zhengmai 9023 were studied. [Result]The results indicated that NR activity, Chlorophyll and nitrogen content in flag leaf increased with irrigation times increasing, and the irrigation treatment had obvious advantages during middle filling stage. Grain protein content showed "V" type change with grain filling going on, and protein content decreased when irrigation times increased. There was significant difference among treatments during early stage of grain filling, and the difference became smaller in the late grain filling stage. The grain yield and protein yield increased but the protein content decreased with increasing of irrigation times. [Conclusion] Increasing irrigation times properly could improve grain yield and protein yield per unit area, but reduce the grain protein content.
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