Effects of Salicylic Acid on Chilling Resistance of Hot-pepper

doi:10.7668/hbnxb.2008.S1.029

Abstract

Abstract: Effects of salicylic acid on chilling??resistance of hot??pepper were researched by spraying SA in the present study. The results showed that suitable SA concentrat ion ( 2. 0 mmol/ L) decreased damage and wilt rat io of hot??pepper seedlings, increased act ivity of POD and CAT, and chlorophyll content, dropped MDA content at low temperature, and the chilling resistance of hot??pepper was improved. Metabolism of hot??pepper was disturbed, so its chilling resistance fell when SA concentration was above 2.0 mmol/ L. 2.0 mmol/ L of SA was the optimum concentration among all the treat??ments.

Key words: Hot??pepper, Salicylic acid, Chilling resistance

CLC Number:

S641.3

ZHANG Su-qin, GENG Guang-dong, TAN Yu-li. Effects of Salicylic Acid on Chilling Resistance of Hot-pepper[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(S1): 118-120. doi: 10.7668/hbnxb.2008.S1.029.

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