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ACTA HORTICULTURAE SINICA ›› 2004, Vol. 31 ›› Issue (1): 94-96.

• 研究报告 • Previous Articles     Next Articles

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

Zhang Yanpeng1;Yu Xianchang1*; Zhang Zhenxian2;Zhao Xueli1;Li Yansu1   

  1. (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

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

CLC Number: