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Effect of MCPA-Na Stress on Physiological Characteristics of Zizania caduciflora(Turcz.)Hand.-Mazz. |
HUANG Kai-feng1,2,FANG Yan3,JIANG Jie-zeng1* |
1Aquatic Vegetable Research Laboratory,Yangzhou University,Yangzhou 225009,Jiangsu,China;2Institute of Plant Genetics and Breeding,School of Life Sciences,Guizhou Normal University,Guiyang 550001,Guizhou,China;3Hanjiang District of Shatou Township Government,Yangzhou 225009,Jiangsu,China |
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Abstract The Changes of physiological and biochemical indexes in leaves and roots of Zizania caduciflora(Turcz.)Hand.-Mazz.were studied every 5 days on single-harvested cultivar‘Jiangshujiao’and double-harvested cultivar‘Fenghongzao’,which were treated with different concentration of MCPA-Na.The effect of MCPA-Na on physiological characteristics of Zizania caduciflora(Turcz.)Hand.-Mazz.as discussed.The results indicated that the root activity and chlorophyll content of the 2 varieties were increased when treated with low concentration of MCPA-Na.While they were decreased when increasing the concentration of MCPA-Na.However,the membrane permeability,MDA and praline contents,POD and PPO activities of Zizania caduciflora(Turcz.)Hand.-Mazz.were increased when increasing MCPA-Na concentration.Injury of MCPA-Na stress to the 2 Zizania caduciflora(Turcz.)Hand.-Mazz.varieties were increased along with the increasing of treating times.There were differences between cultivars.
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Received: 10 January 2011
Published: 29 March 2011
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