Effect of Soaking Seed with SA on Growth and the Activity of Antioxidant Enzymes of Cucurbita pepo L.Seedling(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effect of Soaking Seed with SA on Growth and the Activity of Antioxidant Enzymes of Cucurbita pepo L.Seedling

Author(s):: LIU Feng-lan; DU Xin-min; WU Zhong-hong; ZHANG Yong-qing; College of Life Science，Shanxi Normal University，Linfen，Shanxi 041004

Keywords:: salicylic acid; soaking seed; Cucurbita pepo L.; growth; antioxidant enzymes

Abstract:: Taking seedling of Cucurbita pepo L.‘Cuiyutezaowang’ as materials，the effects of soaking seed with different concentrations of SA on growth and the activity of antioxidant enzymes of Cucurbita pepo L.seedling were studied.The results showed that，seed soaked with SA 0.25～1.00 mmol/L could raise the plant height，leaf area，aerial parts of the fresh weight，total root number，total root length，root fresh weight and root cap ratio of ?Cucurbita pepo L.seedling at different degrees，while all the indicators were obviously decreased when seed soaked with 4.00 mmol/L SA；seed soaked with SA 0.50～2.00 mmol/L could raise the chlorophyll content and root vigor of Cucurbita pepo L.seedling significantly，while they obviously decreased when seed soaked with 4.00 mmol/L SA ；seed soaked with SA 0.25～1.00 mmol/L and 0.25~2.00 mmol/L could raise the SOD，POD and CAT activity of underground portion and ground of Cumcurbita pepo L.seedling in varying degrees，while the SOD，POD and CAT activity were decreased when seed soaked with 4.00 mmol/L SA.Seed soaked with SA of low concentration could improve the growth of Cumcurbita pepo L.seedling，increase its antioxidase activity；while seed soaked with SA of high concentration could inhabit its growth and antioxidase activity.Seed soaked 0.50～1.00 mmol/L worked the best.

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Last Update: 2014-08-08