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- W2308664856 abstract "【Objective】 We studied the effects of SA on the germination of seeds under cold stress(-5 ℃)and stability of cell membrane of seedlings.【Method】 The seeds of Lespedeza bicolor,lespedeza davurica,Xinong 889,Xinong 979,Xiaoyan 6 and Xiaoyan 22 were studied in this paper.The six kinds of plant seeds were soaked in SA and subject to cold stress(-5 ℃)for 24 hours,then cultured under normal temperature and the seed germination power was determined four days later and germination rate,germination index,vigor index,relative conductivity and MDA content of seedlings were determined eight days later.【Result】 As the concentration of SA increased,the germination rate,germination power,germination index and vigor index of seeds increased first but followed by decrease.Relative conductivity and MDA content decreased first and then increased.The most suitable concentrations of SA that would alleviate the strong cold stress(-5 ℃) to the seeds of Lespedeza bicolor,lespedeza davurica,Xinong 889,Xinong 979,Xiaoyan 6 and Xiaoyan 22 were 0.05-0.1,0.1-0.5,0.01-0.5,0.005-0.5,0.005-0.05 and 0.1 mmol/L respectively.【Conclusion】 SA in low concentration can reduce the lipid peroxidation,keep the integrity and stability of cell membrane to relieve the harm of cold stress and promote the germination of seeds.SA in high concentration can inhibit the germination of seeds under low temperature.Different SA concentrations are appropriate for different kinds of plants." @default.
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- W2308664856 date "2010-01-01" @default.
- W2308664856 modified "2023-09-22" @default.
- W2308664856 title "Effects of SA on the germination of seeds and the stability of cell membrane under cold stress." @default.
- W2308664856 hasPublicationYear "2010" @default.
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