Effects of High Temperature Stress on Chlorophyll Fluorescence Parameter of Chinese Leek in Bashang Plateau in Hebei Province

doi:10.7668/hbnxb.2010.05.027

Abstract

Abstract: In order to probe into the heat-resisting ability of leek planted in greenhouse,an experiment was conducted to study the effect of high temperature stress on chlorophyll fluorescence parameter of leek in greenhouse and its sensitivity in different growing stage to high temperature with a control that is the leek planted in open field in the Zhangbei Experiment Station. The result showed that high temperature stress decreased Fv /Fm in each growing stage of leek in summer in Bashang Plateau in Hebei Province,and in the early stage of vegetative growth and bolting stage leek was injured more easily by high temperature than vigorous stage of vegetative growth. The leek in open was not sensitive to high temperature and could endure it for a short time and Fv /Fm,Fv /Fo after harming in each growing stage could recover to the initial value. For the leek in greenhouse,the early stage of vegetative was the most sensitive to high temperature,the second was the vigorous stage of vegetative growth,and the bolting state was the most insensitive.

Key words: High temperature stress, Chlorophyll fluorescence, Chinese leek, Bashang plateau in Hebei province

CLC Number:

S633.01

YANG Jianting, CHAI Qing, LIU Yuhua, ZHANG Lifeng, DU Xiong. Effects of High Temperature Stress on Chlorophyll Fluorescence Parameter of Chinese Leek in Bashang Plateau in Hebei Province[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(5): 132-136. doi: 10.7668/hbnxb.2010.05.027.

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