| 自然休眠期低温处理时间对生长期草莓叶片光合特性的影响 |
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| 引用本文： | 李映龙,单守明.自然休眠期低温处理时间对生长期草莓叶片光合特性的影响[J].农业科学研究,2011,32(1):39-42. |
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| 作者姓名： | 李映龙 单守明 |
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| 作者单位： | 宁夏大学农学院,宁夏,银川,750021 |
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| 基金项目： | 宁夏大学博士科研启动项目，宁夏大学农学院青年教师科研资助项目 |
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| 摘 要： | 以草莓为料材,研究自然休眠期不同低温处理时间对其生长期叶片光合特性的影响.结果表明:在自然休眠过程中,随着低温处理时间延长,草莓新生叶叶面积、叶柄长度不断增加,而初生叶柄角度不断变小,完全通过休眠后,不再有显著变化.新生叶片的光合速率、气孔导度、叶绿素质量比和光合作用关键酶活性也随着低温处理时间延长而不断升高,当低温处理时间大于765 h后,不再有显著变化.自然休眠过程中,低温处理时间可通过调节气孔因素、叶绿素质量比和光合作用关键酶活性来调控生长期草莓叶片的光合作用,当完全通过休眠后,低温处理时间对草莓的生长发育和叶片的光合特性不再有显著影响.
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| 关 键 词： | 草莓 休眠 光合作用 核酮糖-1 5-二磷酸羧化/加氧酶 |
Effects of low temperature treatment in nature dormancy on photosynthetic characteristics of strawberry leaf |
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| Li Yinglong,Shan Shouming.Effects of low temperature treatment in nature dormancy on photosynthetic characteristics of strawberry leaf[J].Journal of Agricultural Sciences,2011,32(1):39-42. |
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| Authors: | Li Yinglong Shan Shouming |
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| Institution: | Li Yinglong,Shan Shouming(School of Agriculture,Ningxia University,Yinchuan 750021,China) |
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| Abstract: | Effects of low temperature treatments with different durations on photosynthetic characteristics of strawberry were researched during nature dormancy.The results showed that the foliar area and petiole length rose steadily and petiole angle decreased with more time of low temperature treatment during dormancy.There were no significantly changed when they were completely passed dormancy.The photosynthetic rate,stoma conductance,chlorophyll and activities of key photosynthetic enzymes in new foliar increased ... |
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| Keywords: | strawberry dormancy photosynthesis Rubisco |
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