Effects of Grafting with Different Rootstocks on the Growth,Osmotic Adjustment and Anti-oxidant Enzyme Activities of Cucumber Seedlings under Salt Stress
Effects of Grafting with Different Rootstocks on the Growth,Osmotic Adjustment and Anti-oxidant Enzyme Activities of Cucumber Seedlings under Salt Stress
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发表时间：
2008
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通讯作者：
Zhu Jin;Bie Zhi-long
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作者：
Zhu Jin;Bie Zhi-long
The effects of grafting with different rootstocks on cucumber growth and physiological trait were investigated by using‘Chaofeng 8848'and‘Heizinangua'as rootstocks,‘Jinchun No.2'as scion under NaCl stress,and the ungrafted cucumber plants were as the controls.The results showed that the reductions in the shoot and root dry weights,leaf area,stem diameter of grafted plants were lower than those of ungrafted plants under the same NaCl stress.MDA and H_2O_2 contents,O_2~- producing rate were lower,whereas soluble sugar,shoot water content,SOD,POD,CAT,APX activities in the leaves of grafted plants were higher than those of ungrafted plants at the same NaCl stress.The reductions in shoot and root dry weight,leaf area and stem diameter of grafted‘Chaofeng 8848' plants were significantly lower than those of grafted‘Heizinangua'plants ones.MDA and H_2O_2 contents were lower whereas proline contents,soluble protein content,SOD,POD,CAT,APX,GR activities in the leaves of grafted‘Chaofeng 8848'plants were higher than those of grafted‘Heizinangua'plants under the same NaCl stress.The better osmotic adjustment ability and antioxidant system was the important reason for the higher salt tolerance of grafted‘Chanfeng 8848'plants than grafted‘Heizinangua'ones.
