| 低温对玉米光合作用、超氧物歧化酶活性和籽粒产量的影响 |
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| 引用本文： | 张毅,顾慰连,戴俊英.低温对玉米光合作用、超氧物歧化酶活性和籽粒产量的影响[J].作物学报,1992,18(5):397-400. |
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| 作者姓名： | 张毅 顾慰连 戴俊英 |
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| 作者单位： | 沈阳农业大学 沈阳 北京农业大学农业系统工程研究室 |
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| 摘 要： | 玉米在孕穗期和灌浆期,尤其是在孕穗期遇低温逆境会导致光合速率下降,光合有效叶面积降低,叶片和雌穗(或籽粒)超氧物歧化酶(SOD)活性下降、丙二醛含量剧增和相对电导率提高,造成低温冷害。孕穗期低温处理主要抑制了雌穗分化和发育,减少了穗粒数,灌浆期低温逆境主要影响了籽粒灌浆,致使百粒重下降,引起产量降低。
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| 关 键 词： | 低温逆境 玉米 籽粒产量 光合作用 SOD活性 |
| 收稿时间： | 1991-05-26 |
| 修稿时间： | 1992-01-20 |
Effect of Low Temperature on Photosynthesis, Activity of Superoxide Dismutase and Kernel Yield of Maize |
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| Zhang Yi,Gu Weilian,Dai Junying Shenyang Agricultural University,Shenyang.Effect of Low Temperature on Photosynthesis, Activity of Superoxide Dismutase and Kernel Yield of Maize[J].Acta Agronomica Sinica,1992,18(5):397-400. |
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| Authors: | Zhang Yi Gu Weilian Dai Junying Shenyang Agricultural University Shenyang |
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| Institution: | Shenyang Agricultural University,Shenyang 110161 |
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| Abstract: | Chilling stress (10℃) at booting and filling stages, especially at booting stagedicreased photosynthetic rate and leaf area per plant, lowered SOD activity and in-creased MDA content and relative conductivity of leaf and ear (or kernel) in maize,thus causing chilling injury. Low temperature at boot |
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| Keywords: | Chilling stress Maize kernel yield Photosynthesis SOD activity |
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