日光温室嫁接黄瓜的光合特性和保护酶活性

园艺学报 ›› 2004, Vol. 31 ›› Issue (1): 94-96.

日光温室嫁接黄瓜的光合特性和保护酶活性

张衍鹏¹;于贤昌^1*;张振贤²;赵雪丽¹;李衍素¹

(¹ 山东农业大学园艺学院, 泰安271018 ; ² 中国农业大学园艺学院, 北京100083)

收稿日期:2003-07-21 修回日期:2003-10-08 出版日期:2004-02-25 发布日期:2004-02-25

Studies on the Photosynthetic Characteristic and Protective Enzyme of GraftedCucumber Leaves in Solar Greenhouse

Zhang Yanpeng¹;Yu Xianchang^1*; Zhang Zhenxian²;Zhao Xueli¹;Li Yansu¹

(¹ Department of Horticulture , Shandong Agricultural University , Tai'an 271018 , China ; ² School of Horticulture China Agricultural University , Beijing 100083 , China)

Received:2003-07-21 Revised:2003-10-08 Online:2004-02-25 Published:2004-02-25

摘要/Abstract

摘要： 对日光温室嫁接和自根黄瓜结果期叶片发育过程中的生理生化变化进行了研究, 以揭示日光温
室嫁接黄瓜高产的生理原因。结果表明, 嫁接黄瓜叶片叶绿素含量、可溶性蛋白质含量、表观量子效率、羧化效率和保护酶活性均明显高于自根黄瓜, 而膜脂过氧化产物MDA 的积累低于自根黄瓜, 表明嫁接黄瓜叶片在弱光和低浓度CO₂下具有较强的光合效率, 叶片衰老进程明显减慢是其产量高于自根黄瓜的重要原因。

关键词: 嫁接, 黄瓜, 表观量子效率, 羧化效率, 保护酶活性

Abstract: The changes of physiology and biochemistry during the development of the leaves of the grafted and own root cucumber in solar greenhouse were studied , so as to realize physiological reasons of high yield of grafted
cucumber in solar greenhouse. The results indicated : Content of chlorophyll and soluble protein , apparent quantum yield (AQY) , carboxylation efficiency (CE) and activity of superoxide dismutase (SOD) , catalase (CAT) and peroxidase (POD) in the leaves of grafted cucumber were evidently higher than these in the leaves of own root cucumber. Whereas , MDA accumulated slowly in the grafted cucumber leaves by comparison the own root cucumber leaves. Photosynthesis in the grafted cucumber leaves was much higher than that in the own root cucumber leaves under the low light intensity and the low concentration of CO₂ and these were the main reasons why grafted
cucumber got high production in solar greenhouse.

Key words: Graft, Cucumber, Apparent quantum yield, Carboxylation efficiency, Protective enzyme

中图分类号:

S 642.2

张衍鹏;于贤昌;张振贤;赵雪丽;李衍素. 日光温室嫁接黄瓜的光合特性和保护酶活性[J]. 园艺学报, 2004, 31(1): 94-96.

Zhang Yanpeng;Yu Xianchang;Zhang Zhenxian;Zhao Xueli;Li Yansu. Studies on the Photosynthetic Characteristic and Protective Enzyme of GraftedCucumber Leaves in Solar Greenhouse[J]. ACTA HORTICULTURAE SINICA, 2004, 31(1): 94-96.

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