| 不同波段紫外辐射增强对黄瓜穴盘苗生长发育的影响 |
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| 引用本文： | 崔馨元,赵瑞,陈俊琴.不同波段紫外辐射增强对黄瓜穴盘苗生长发育的影响[J].东北农业大学学报,2010,41(9). |
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| 作者姓名： | 崔馨元 赵瑞 陈俊琴 |
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| 作者单位： | 沈阳农业大学园艺学院,沈阳,110161;沈阳农业大学园艺学院,沈阳,110161;沈阳农业大学园艺学院,沈阳,110161 |
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| 摘 要： | 以黄瓜(Cucumis sativusL.)穴盘苗为材料,研究不同波段UV辐射增强对黄瓜穴盘苗的生长发育指标及光合作用的影响。结果表明,在UV辐射3个波段中,UV-A辐射不能抑制穴盘苗徒长;UV-B辐射株高比对照降低16.63%,壮苗指标和根冠比最高;UV-C辐射株高比对照降低23.27%,干物质含量比对照下降12.57%,G值和根冠比低于对照,抑制黄瓜根系生长。UV辐射降低黄瓜穴盘苗的光合作用,提高了叶绿素含量。因而UV-B为最佳的辐射波段。
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| 关 键 词： | UV辐射 黄瓜 穴盘苗 生长发育 |
Effect of different UV radiation bands on growth and development of cucumber plug seedlings |
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| CUI Xinyuan,ZHAO Rui,CHEN Junqin.Effect of different UV radiation bands on growth and development of cucumber plug seedlings[J].Journal of Northeast Agricultural University,2010,41(9). |
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| Authors: | CUI Xinyuan ZHAO Rui CHEN Junqin |
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| Abstract: | Cucumber (Cucumis sativus L.) plug seedlings were used to study the effects of different UV radiation bands on cucumber growth and photosynthesis in leaves.The results showed that UV-A radiation did not significantly inhibit cucumber seedling height;UV-B and UV-C radiation significantly inhibit the height,16.63% and 23.27% were lower than that of CK;exponent of stern seedling index and ratio of root seedling were higher than CK.UV radiation reduced the photosynthesis of cucumber seedlings,increased chlorophyll content.UV radiation on photosynthesis,root activity and no significant effect.UV radiation reduced photosynthesis of cucumber seedlings,increased the chlorophyll content.Therefore,UV-B radiation was the best band. |
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| Keywords: | UV radiation cucumber plug seedling growth and development |
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