Effects of High Temperature Stress on Related Heat-resistance Index in Kiwifruit Seedlings

doi:10.14088/j.cnki.issn0439-8114.2018.07.022

Abstract

Abstract: In order to elucidate the influences of high temperature on the physiological and biochemical indexes of the seedlings of kiwifruit,the seedlings of the A. eriantha and the A. chinensis were treated with different high temperature. The physiological and biochemical levels of The chlorophyll content（CC）,proline content,malondialdehyde content（MDA）,peroxidase activity（POD）,superoxide dismutase activity（SOD） and catalase activity（CAT） were measured. The result indicated that the CC content of the two kiwifruit seedlings increased with the high-temperature stress. The proline content decreased with the lower temperature then increased with higher temperature. The MDA increased continuously; The activity of POD,SOD and CAT showed a small fluctuation before increasing. Under high-temperature stress,the kiwifruit seedlings have physiological and biochemical responses to adapt the change of temperature. Under the condition of 38~40 ℃,the resistance of A. eriantha and seedlings was better than the A. chinensis seedlings.

Key words: A. chinensis, A. eriantha, heat resistance, physiological and biochemical indexes

CLC Number:

S663.4

ZHONG Min, ZHANG Wen-biao, HUANG Chun-hui, TAO Jun-jie, QU Xue-yan, WU Han, XU Xiao-biao. Effects of High Temperature Stress on Related Heat-resistance Index in Kiwifruit Seedlings[J]. HUBEI AGRICULTURAL SCIENCES, 2018, 57(7): 96-99.

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