| 钾对小麦旗叶蛋白水解酶活性和籽粒品质的影响 |
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| 引用本文： | 王旭东,于振文,王东.钾对小麦旗叶蛋白水解酶活性和籽粒品质的影响[J].作物学报,2003,29(2):285-289. |
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| 作者姓名： | 王旭东 于振文 王东 |
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| 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 |
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| 基金项目： | 国家自然科学基金资助项目 ( 39970 42 5 ) |
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| 摘 要： | 利用强筋冬小麦品种烟农15研究了钾素对小麦旗叶蛋白质含量和籽粒品质及有关酶活性的影响. 结果表明, 钾素有利于提高灌浆前期和中期小麦旗叶中可溶性蛋白质和游离氨基酸的含量, 增强内肽酶和羧肽酶的活性, 促进籽粒中游离氨基酸转化为蛋白质, 提高籽粒中清蛋白、球蛋白、醇溶蛋白和谷蛋白的含量, 改善籽粒营养品质和加工品质
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| 关 键 词： | 小麦 钾素 酶活性 品质 产量 |
| 收稿时间： | 2001-09-13 |
| 修稿时间： | 2001年9月13日 |
Effect of Potassium on Flag Leaf Proteinases Activity and Kernel Quality in Wheat |
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| WANG Xu-Dong,YU Zhen-Wen,WANG Dong.Effect of Potassium on Flag Leaf Proteinases Activity and Kernel Quality in Wheat[J].Acta Agronomica Sinica,2003,29(2):285-289. |
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| Authors: | WANG Xu-Dong YU Zhen-Wen WANG Dong |
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| Abstract: | The effect of potassium on flag leaf protein content and kernel quality as well as enzyme activity in wheat was investigated using wheat cultivar Yannong 15 with strong gluten potential. Result suggested that potassium can increase soluble protein and free amino acid content, enhance the activities of endopeptidases and carboxypeptidase in wheat flag leaf during the early and medium stage of kernel filling, accelerate the translation of free amino acid to protein in kernel. Potassium also increased the contents of albumin, globulin, gliadin and glutenin in kernel, improved nutrition and process qualities, increased kernel yield. The improvement of protein components, the relationship between nutrition quality and process quality and the optimum amount of applied potassium were also discussed. |
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| Keywords: | Wheat Potassium Enzyme activity Quality Yield |
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