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氮素营养水平对冬小麦氮代谢关键酶活性变化和籽粒蛋白质含量的影响
引用本文:王月福,于振文,李尚霞,余松烈.氮素营养水平对冬小麦氮代谢关键酶活性变化和籽粒蛋白质含量的影响[J].作物学报,2002,28(6):743-748.
作者姓名:王月福  于振文  李尚霞  余松烈
作者单位:山东农业大学农业部小麦栽培生理与遗传改良重点开放实验室,山东泰安,271018
基金项目:国家自然科学基金项目 ( 39970 42 5 )资助
摘    要:通过氮素营养水平对籽粒蛋白质含量差异较大的3个小麦品种的氮素代谢关键酶活性变化及籽粒蛋白质含量影响的研究表明: 增加施氮量能够提高氮素同化关键酶硝酸还原酶和谷氨酰胺合成酶的活性, 降低旗叶蛋白质水解酶的活性. 增加施氮量提高籽粒蛋白质含量主要与促进开花后氮素吸收同化能力有关. 不同品种间籽粒蛋白质含量的差异

关 键 词:冬小麦  氮素营养  氮代谢酶  蛋白质含量
收稿时间:2001-12-11
修稿时间:2001年12月11

Effect of Nitrogen Nutrition on The Change of Key Enzyme Activity during the Nitrogen Metabolism and Kernel Protein Content in Winter Wheat
WANG Yue-Fu,YU Zhen-Wen,LI Shang-Xia,YU Song-Lie.Effect of Nitrogen Nutrition on The Change of Key Enzyme Activity during the Nitrogen Metabolism and Kernel Protein Content in Winter Wheat[J].Acta Agronomica Sinica,2002,28(6):743-748.
Authors:WANG Yue-Fu  YU Zhen-Wen  LI Shang-Xia  YU Song-Lie
Abstract:Author studied the effect of nitrogen nutrition on the change of key enzyme activity during the nitrogen metabolism and kernel protein content of three wheat cultivars, which have notable difference in kernel protein content. The results indicate that increasing nitrogen amounts can improve the ability of absorbing and assimilating nitrogen after anthesis, so improve the kernel protein content. The difference of kernel protein content between two cultivars is the results of absorbing, assimilation and translocation nitrogen after anthesis. Using the cultivar with stronger ability of absorbing, assimilating and translocation nitrogen can not only improve kernel yield, but kernel protein content.
Keywords:Winter wheat  Nitrogen nutrition  Nitrogen metabolism enzyme  Protein content
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