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| 剪根对超高产玉米叶片保护酶活性及产量的影响 | |
| 引用本文： | 胡文河,孙刚,宋红凯,张丹,吴春胜.剪根对超高产玉米叶片保护酶活性及产量的影响[J].东北林业大学学报,2011,39(7):99-101. |
| 作者姓名： | 胡文河 孙刚 宋红凯 张丹 吴春胜 |
| 作者单位： | 1. 吉林农业大学,长春,130118 2. 安华农业保险股份有限公司 3. 吉林农业大学 |
| 基金项目： | 国家粮食丰产工程项目，吉林省科技支撑计划项日，吉林省农委农业新品种研发项目，吉林省农业综合开发科技示范项目 |
| 摘 要： | 以超高产玉米先玉335为试验材料,研究其剪根对叶片保护酶活性及产量的影响.结果表明:在供试生育时期内,剪根后,超高产玉米叶片SOD、POD、CAT活性有不同程度的降低,随着生育时期的延长,其保护酶活性逐渐升高,到吐丝期达到最高点,此后逐渐降低,剪2/5和3/5根处理均显著低于对照；而叶片丙二醛的变化则呈现相反的变化.除... |
| 关 键 词： | 超高产玉米 剪根 保护酶活性 |
Effect of Root Pruning on Protective Enzyme Activity of Leaves and Yield of Super High-Yield Corn |
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| Hu Wenhe,Sun Gang,Song Hongkai,Zhang Dan,Wu Chunsheng.Effect of Root Pruning on Protective Enzyme Activity of Leaves and Yield of Super High-Yield Corn[J].Journal of Northeast Forestry University,2011,39(7):99-101. | |
| Authors: | Hu Wenhe Sun Gang Song Hongkai Zhang Dan Wu Chunsheng |
| Institution: | (Jilin Agricultural University) |
| Abstract: | An experiment was conducted to study the effects of root pruning on protective enzyme activities and yield of super high-yield corn(Xianyu 335).Result indicated that,compared with the control,SOD,POD and CAT activities in the leaves of root pruned corn plants decreased to varying degrees after root pruning,and then increased with the prolonged growth stage.The protective enzyme activities reached their peak at the silking stage,and then reduced quickly.When two-fifths or three-fifths of roots were pruned around the plants,the protective enzyme activities in the leaves of the corn plants were obviously lower than those of the control.However,the change in MDA content in the leaves of corn plants showed an adverse trend.Except for the treatment of pruning one-fifth of roots,the yields of the super high-yield corn plants from all the other treatments were significantly lower than those of the control,and the maximum decreasing amplitude reached 44.2%. |
| Keywords: | Super high-yield corn Root pruning Protective enzyme activities |
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