The effect of exogenous ALA、CaCl2 and SA on physiological characteristics of muskmelon seedling under salt stress
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DOI：10.7606/j.issn.1000-7601.2007.04.41
Key Words: muskmelon  salt stress  5-aminolevulinic acid  CaCl2  SA
Author NameAffiliation
ZHOU He-fang College of Horticulture， Northwest A & F University， Yangling， Shaanxi 712100， China 
ZOU Zhi-rong College of Horticulture， Northwest A & F University， Yangling， Shaanxi 712100， China 
MENG Chang-jun College of Horticulture， Northwest A & F University， Yangling， Shaanxi 712100， China 
GUO Hai-tao College of Horticulture， Northwest A & F University， Yangling， Shaanxi 712100， China 
YANG Xing-juan College of Horticulture， Northwest A & F University， Yangling， Shaanxi 712100， China 
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Abstract:
      Effects of different kinds of exogenous chemicals ALA、SA and CaCl2 on seedlings of muskmelon (Cucumis melo L.) were studied and physiological and biochemical characteristics were measured under 150 mmol/L NaCl stress. The results showed that the three kinds of exogenous chemicals alleviated the inhibition of muskmelon seedlings' growth under salt stress. ALA treatments worked best and fresh/dry weight、area of leaf、root activity、dissolved sugar content increased; MDA content and cell membrane decreased after exogenous 6～12 g/100m2 ALA treatments. It could induce salt resistance, salt tolerance and decrease and alleviate damage degree of salt of muskmelon seedlings.
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