| 磷钾对小麦幼苗抗寒性的影响 |
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| 引用本文： | 王贺正,陈明灿,贺文闯,李友军,付国占,徐国伟.磷钾对小麦幼苗抗寒性的影响[J].麦类作物学报,2009,29(1). |
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| 作者姓名： | 王贺正 陈明灿 贺文闯 李友军 付国占 徐国伟 |
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| 作者单位： | 河南科技大学农学院,河南洛阳,471003 |
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| 基金项目： | 河南科技大学博士科研启动基金 |
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| 摘 要： | 为了探索低温胁迫下磷钾元素对小麦幼苗抗寒性的影响机理,对不同磷钾处理的小麦幼苗进行低温胁迫,测定和分析了相对电导度、可溶性糖含量、丙二醛含量、叶绿素含量、脯氨酸含量和SOD酶活性的变化.结果表明,低温胁迫下,磷素和钾素处理与对照相比明显降低了小麦幼苗组织的相对电导度和丙二醛含量,增加了可溶性糖和脯氨酸含量,提高了SOD酶活性;其中多数指标的磷钾配合处理效果更好.说明磷钾处理可以明显地增强低温下小麦幼苗的抗寒性,减缓低温对小麦幼苗的胁迫伤害,尤其是磷钾的配合施用对增强小麦幼苗的抗寒效果更好.
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| 关 键 词： | 小麦 幼苗 磷钾元素 抗寒性 |
Effect of Phosphorus and Potassium on Cold Resistance of Wheat Seedling |
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| WANG He-zheng,CHEN Ming-can,HE Wen-chuang,LI You-jun,FU Guo-zhan,XU Guo-wei.Effect of Phosphorus and Potassium on Cold Resistance of Wheat Seedling[J].Journal of Triticeae Crops,2009,29(1). |
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| Authors: | WANG He-zheng CHEN Ming-can HE Wen-chuang LI You-jun FU Guo-zhan XU Guo-wei |
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| Institution: | College of Agriculture;Henan University of Science and Technology;Luoyang;Henan 471003;China |
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| Abstract: | In order to explore the effect of P and K on the cold resistance of wheat seedlings under low-temperature condition,four different P and K treatments were carried out in laboratory to investigate the effects of low-temperature stress on enzymatic activity of SOD,relative electrical conductance,soluble sugar content,MDA content,chlorophyll content and proline content in wheat seedling under both normal and low-temperature conditions.The result showed that under the treatment with P and K,decreases of the rel... |
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| Keywords: | Wheat Seedling Phosphorus and potassium Cold resistance |
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