Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (31): 68-73.doi: 10.11924/j.issn.1000-6850.casb15040090

Special Issue: 生物技术 园艺

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Effects of 5-Sulfosalicylic Acid on Physiological-biochemical Characteristics of Tomato Under Low Temperature Stress

  

  • Received:2015-04-12 Revised:2015-06-16 Accepted:2015-06-25 Online:2015-11-16 Published:2015-11-16

Abstract: In order to study the effects of 5-sulfosalicylic acid on seed germination and seedling growth of tomato under low temperature stress, exogenous 5-sulfasolicylic acid was applied by presoaking and spraying on seedling leaves. Then, the seedlings were submitted to low temperature treatment. Samples were measured for physiological and biochemical indexes. The results indicated that the activities of SOD, CAT and POD were improved by 5-sulfosalicylic acid, but MDA content and relative electro conductivity were decreased. The levels of free amino acid and soluble proteins were increased. There was no consistent variation among different treatments. 5- sulfosalicylic acid could improve the adaptability of tomato seedlings to low temperature stress to a certain extent by protecting biomembrane from cold damage. Treatment 2 had the best effect, different varieties had different response to the same 5-sulfasolicylic acid treatment.

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