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| Research Advances on Plant Water Potential under Drought and Salt Stress |
| FU Ai-hong1,2, CHEN Ya-ning1, LI Wei-hong1, ZHANG Hong-feng1,2 |
1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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Abstract Water potential is one of the most direct indexes in denoting plant moisture condition. In the recent several decades, many domestic and overseas scholars are having researched plant water potential with great concentration. Thereinto, overseas scholars mostly fastened on studying the change of water potential in leaves and stems under drought stress after accepting different treatments, and on discussing the impact of the different amount of salt content in plant or fertilization to the water potential of leaves and stems. In addition, many scholars also especially attached importance to whether the predawn leaf water potential could effectively reflect the soil moisture condition or not. Comparing with overseas scholars, domestic scholars even more emphasized particularly on the basic research about plant water potential. A lot of articles all expatiated on the character of the daily variation of plant leaf water potential and the relation with environment genes. Nevertheless, it is lack of research on the character of plant water potential under salt stress. After understanding the research actuality on plant water potential, we pertinently put forward the existent problems at present and research prospect: based on the environmental characters of arid climate, lacking water, severe sand blowing and high soil salt-alkalinity in the arid zone of West China, we may open out the plants speciality in fighting drought and salt in virtue of studying the plant water potential in arid zone.
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Received: 19 April 2004
Published: 20 October 2005
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2005, Vol. 25 
