| Effects of Exogenous Cinnamic Acids on the Growth and Physiological Characteristics of Cucumber Seedlings |
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| 作者姓名： | CHEN Li-xin WU Feng-zhi MA Feng-ming |
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| 作者单位： | [1]Northeast Agricultural University, Harbin 150030, P.R.China [2]Heilongjiang Academy of Agricultural Sciences, Horticultual Sub-Academy, Harbin 150069, P.R.China |
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| 摘 要： | In order to study the effects of exogenous cinnamic acids on plant growth, contents of photosynthetic pigment, root activities and ATPase activities of root membrane at cucumber seedling stage, the seedlings of Shandong Mici cucumber were tested. The results showed that seedlings growth, contents of photosynthetic pigment, root activities and ATPase activities of root membrane were inhibited by cinnamic acids. The growth and root activities of seedlings were significantly （P〈0.05） lower in the soil amended with 100 mg kg^-1 cinnamic acids compared to the control. The contents of chlorophyll a, chlorophyll a＋b and carotenoid of seedlings significantly （P〈0.05） decreased in the soil amended with 200 mg kg^-1 cinnamic acids, whereas ATPase activities exhibited a higher sensitivity and greatly decreased in the soil amended with 50 mg kg^-1 cinnamic acids. These results suggested that cinnamic acids could induce a stress condition, and the stress intensities increased with enhanced cinnamic acid concentration.
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| 关 键 词： | 黄瓜 苯乙烯酸 生长速度 生理特性 种子处理 |
Effects of Exogenous Cinnamic Acids on the Growth and Physiological Characteristics of Cucumber Seedlings |
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| CHEN Li-xin WU Feng-zhi MA Feng-ming.Effects of Exogenous Cinnamic Acids on the Growth and Physiological Characteristics of Cucumber Seedlings[J].Agricultural Sciences in China,2005,4(10):747-751. |
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| Authors: | CHEN Li-xin WU Feng-zhi MA Feng-ming |
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| Abstract: | In order to study the effects of exogenous cinnamic acids on plant growth, contents of photosynthetic pigment, root activities and ATPase activities of root membrane at cucumber seedling stage, the seedlings of Shandong Mici cucumber were tested. The results showed that seedlings growth, contents of photosynthetic pigment, root activities and ATPase activities of root membrane were inhibited by cinnamic acids. The growth and root activities of seedlings were significantly cinnamic acids, whereas ATPase activities exhibited a higher sensitivity and greatly decreased in the soil amended with 50 mg kg-1 cinnamic acids. These results suggested that cinnamic acids could induce a stress condition, and the stress intensities increased with enhanced cinnamic acid concentration. |
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| Keywords: | Cucumber Cinnamic acids Photosynthetic pigment Root activities ATPase |
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