Studies on CCC increasing the drought resistance in peanut seedlings
1991
Li Ling | Pan Ruichi (South China Normal Univ., Guangzhou (China). Dept. of Biology)
Under drought condition, the rate of permeability and water content of leaves of peanut (Arachis hypogaea L.) seedlings can be reduced by CCC at concentrations of 75, 150 and 300 ppm. It is found that 150 ppm CCC treatment increases the peroxidase activity and decreases the malonaldehgde (MDA) content and superoxide dismutase (SOD) activity. CCC treatment has accumulated the endogenous ABA content in the leaves of peanut seedlings grown in normal or drought condition, and the 150 ppm CCC treatment has shown better effect. The increasing drought stress of peanut seedlings after CCC treatment perhaps results from higher level of endogenous ABA, which leads to series of metabolic responses in peanut seedlings, and eventually increases the ability of drought resistance
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