Effect of High Temperature and Drought Stress on the Physiological Characteristics of Eucalyptus urophylla×E. grandis Seedling

ACTA HORTICULTURAE SINICA ›› 2008, Vol. 35 ›› Issue (5): 761-764.

• 研究简报 • Previous Articles Next Articles

Effect of High Temperature and Drought Stress on the Physiological Characteristics of Eucalyptus urophylla×E. grandis Seedling

LIU Yi-qing^1,2,3*,CHEN Ze-xiong^1,2,3,and YANG Wan-qing¹

(¹Department of Life Science, Chongqing University of Arts and Sciences, Yongchuan Chongqing 402160，China; ²Flower Research Institute, Chongqing University of Arts and Sciences, Yongchuan Chongqing 402160，China; ³Garden and Flower Engineering Research Center of Chongqing Colleges, Yongchuan Chongqing 402160，China)

Received:2008-02-01 Revised:2008-04-06 Online:2008-05-25 Published:2008-05-25
Contact: LIU Yi-qing1

Abstract

Abstract:

Eucalyptus urophylla × E. grandis seedlings were used to study the physiological effects of high temperature and drought stress on leaves. The results showed that with the extension of high temperature (40oC) and drought stress (water withholding) the injury index, membrane leakage and MDA content and proline concentration in the leaves of the eucalyptus seedlings increased to different degrees. Leaf water content, chlorophyll and carotenoid concentrations were significantly reduced. The variations of the above parameters under drought stress were greater than under high temperature.

Key words: Eucalyptus urophylla × E. grandis, High temperature, Drought stress, Physiological characteristics

CLC Number:

S 687

LIU Yi-qing;;CHEN Ze-xiong;;and YANG Wan-qing. Effect of High Temperature and Drought Stress on the Physiological Characteristics of Eucalyptus urophylla×E. grandis Seedling [J]. ACTA HORTICULTURAE SINICA, 2008, 35(5): 761-764.

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Effect of High Temperature and Drought Stress on the Physiological Characteristics of Eucalyptus urophylla×E. grandis Seedling

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