| DA-6对花生花期干旱胁迫下的生理效应 |
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| 引用本文： | 于俊红,彭智平,黄继川,李锐,詹愈忠.DA-6对花生花期干旱胁迫下的生理效应[J].热带作物学报,2008,29(4):465-467. |
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| 作者姓名： | 于俊红 彭智平 黄继川 李锐 詹愈忠 |
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| 作者单位： | 1. 广东省农业科学院土壤肥料研究所,广东省养分资源循环利用与耕地保育重点实验室,广州,510640
2. 广东省农业科学院水稻研究所,广州,510640 |
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| 基金项目： | 广东省科技厅农业科技攻关项目 |
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| 摘 要： | 选择花生需水量大的盛花期研究DA-6的生理效应.结果表明,干旱后喷施DA-6能提高叶片水分利用效率,降低离体叶片失水率,改善叶片的水分状况.干旱胁迫后膜脂过氧化产物丙二醛和有机渗透调节物质脯氨酸的含量均大幅度上升,DA-6的处理能降低这2种物质的含量,从而减缓干旱胁迫对花生造成的伤害.
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| 关 键 词： | 干旱胁迫 花生 |
Effect of DA-6 on Physiological Changes of Peanut at Anthesis under Drought Stress |
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| Yu Junhong,Peng Zhiping,Huang Jichuan,Li rui and Zhan Yuzhong.Effect of DA-6 on Physiological Changes of Peanut at Anthesis under Drought Stress[J].Chinese Journal of Tropical Crops,2008,29(4):465-467. |
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| Authors: | Yu Junhong Peng Zhiping Huang Jichuan Li rui and Zhan Yuzhong |
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| Abstract: | DA-6, a universal growth regulator, is used to improve crop growth, yield and fruit quality. Its role in resistance to drought has not been found documented. DA-6 was sprayed onto the peanut clone Yue-you7 at the stage of anthesis under drought stress to observe its resistance to drought. The results showed that DA-6 treatment after drought stress improved plant water status, photosynthesis and leaf water use efficiency, but decreased the rate of water lose from leaves. Meanwhile, drought stress significantly increased the content of MDA and organic osmolytes praline, whereas DA-6 treatment after the drought stress had an antagonistic effect, suggesting that DA-6 is effective in improving resistance of peanut plants to drought at the anthesis stage. |
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| Keywords: | DA-6 |
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