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Effect of CaCl treatment
on the changing of drought related physiological and biochemical indexes
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XIANG Jun1, WANG Pei2, YU Longjiang2, LI Maoteng2, CHEN Zhaobo3 |
1.College of Life Science and Technology, Huazhong University of Science and Technology;College of Life Science and Engineering, Huanggang Normal University; 2.College of Life Science and Technology, Huazhong University of Science and Technology; 3.The Chinese Academy of Agricultural Sciences |
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Abstract Some experiments revealed that the Ca2+ has a relationship with drought resistance. In this paper, some physiological and biochemical indices were studied in order to analyze the effect of Ca2+ treatment on the drought resistance of Brassica napus. The physiological and biochemical experiments revealed that the proline content and the soluble sugar contents in the Ca2+-treated B. napus were much higher than those of water-treated B. napus. However, the content of malonaldehyde in the Ca2+ treated B. napus was lower than that of control. The transpiration and stomatal conductance analysis show that the transpiration and stomatal conductance in the Ca2+-treated materials were lower than those of water-treated materials. Further research revealed that the stomata hatch of Ca2+-treated materials was markedly less than that of water-treated materials, which indicated that the closure of the stomata was the main reason for the decrease of transpiration and stomatal conductance.
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Issue Date: 05 December 2008
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