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Growth and physiological changes of Averrhoa carambola as influenced by water availability

Ismail, Mohd Razi and Awang, Muhamad (1992) Growth and physiological changes of Averrhoa carambola as influenced by water availability. Pertanika, 15 (1). pp. 1-7. ISSN 0128-7680

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Abstract

Utilizing an integrated soil moisture stress approach, two different experiments were conducted simultaneously to investigate the effects of water stress o.n growth and related physiological characteristics of Averrhoa carambola. The first experiment clearly indicated a high correlation between soil water availability and a reduction in plant vegetative growth. In the second experiment, there was a significant correlation between leaf water potential and a reduction in stomata conductance, transpiration rate and photosynthesis rate. The inhibition of photosynthesis mte was only apparent when leaf water potential was reduced to -0.85 MFa. However, chlorophyll content was only affected by a further reduction in water availability. The Telationship between physiological characteristics and vegetative growth is discussed.

Item Type:Article
Keyword:Water stress; Averrhoa carambola; Growth; Leaf water potential; Photosynthesis rate; Stomatal conductance
Faculty or Institute:Faculty of Agriculture
Faculty of Environmental Studies
Publisher:Universiti Putra Malaysia Press
ID Code:2967
Deposited By: Nur Izzati Mohd Zaki
Deposited On:20 Nov 2009 10:41
Last Modified:09 Mar 2015 12:49

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