Effects of silicon on growth of cucumber seedlings under low temperature stress
WANG Hai-hong, ZHU Peng-fei, SHU Liang-zuo, ZHOU Xiu-jie
School of Life Sciences, Huaibei Normal University, Key laboratory of Plant Resources and Biology of Anhui Province, Huaibei, Anhui 235000, P. R. China
Effects of silicon on growth of cucumber seedlings under low temperature stress were studied through sand culture experiment. The results showed that,compared to the cucumber seedlings grown without silicon addition under low temperature stress,the activities of superoxide dismutase(SOD),peroxidase(POD) in leaves and roots were significantly increased by silicon treatment.However,the content of malondialdehyde(MDA) and the producing rate of superoxide radical(O2-) in silicon-treated seedlings were markedly decreased as compared to the control.The relative plasma membrane permeability reduced in silicon-treated seedlings.The content of protein,chlorophyll,chlorophyll a/b ratio and fresh weight of maize seedlings were also increased by silicon addition under low temperature stress.Thus,the damage by low temperature stress on cucumber seedlings could be alleviated by silicon addition.
王海红, 祝鹏飞, 束良佐*, 周秀杰. 硅对低温胁迫下黄瓜幼苗生长的影响[J]. , 2011, 30(1): 38-42.
WANG Hai-hong, ZHU Peng-fei, SHU Liang-zuo, ZHOU Xiu-jie. Effects of silicon on growth of cucumber seedlings under low temperature stress. , 2011, 30(1): 38-42.
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