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水杨酸浸种对NaCl胁迫下辣椒种子活力及抗盐性的影响
引用本文:段辉国,倪祥银,黎勇,赵涛,黄晓西,贾敏.水杨酸浸种对NaCl胁迫下辣椒种子活力及抗盐性的影响[J].内江师范学院学报,2011,26(10):32-34,41.
作者姓名:段辉国  倪祥银  黎勇  赵涛  黄晓西  贾敏
作者单位:内江师范学院生命科学学院,四川内江,641100
基金项目:四川省教育厅重点研究项目,内江师范学院生态学重点建设学科项目
摘    要:以辣椒种子为实验材料,用不同浓度的水杨酸(SA)浸种和对辣椒幼苗进行根部处理,研究100mmol/LNaCl胁迫对辣椒种子活力及抗盐性的影响.结果表明:一定浓度SA可以缓解辣椒种子盐害,提高其发芽率、发芽势,保护细胞膜的通透性,降低种子浸出液电导率和丙二醛(MDA)含量,缓解辣椒幼苗细胞膜脂过氧化.但超过一定浓度的SA则会抑制辣椒种子的萌发,使种子浸出液电导率和丙二醛含量升高.

关 键 词:水杨酸  辣椒  种子活力  抗盐性

Effects of Salicylic Acid Presoaking on Vigor and Salt Resistance of Capsicum frutescans L. Seed under NaCI Stress
DUAN Hui-guo,LI Xiang-yin,LI Yong,ZHAO Tao,HUANG Xiao-xi,JIA Min.Effects of Salicylic Acid Presoaking on Vigor and Salt Resistance of Capsicum frutescans L. Seed under NaCI Stress[J].Journal of Neijiang Teachers College,2011,26(10):32-34,41.
Authors:DUAN Hui-guo    LI Xiang-yin  LI Yong  ZHAO Tao  HUANG Xiao-xi  JIA Min
Institution:DUAN Hui-guo1,2,LI Xiang-yin1,LI Yong1,ZHAO Tao1,HUANG Xiao-xi1,JIA Min1(1.College of Life Science,Neijiang Normal University,Neijiang Sichuan 641100,China,2.Key Laboratory for Research and Utilization of Distinctive Agricultural Resources in the Sichuan Province,Neijiang,Sichuan 641100,China)
Abstract:Studied in this experiment was the effects of presoaking with salicylic acid(SA) of different concentrations on vigor and salt resistance of Capsicum frutescans L. seed under NaC1 Stress of 100 mmol/L. The results showed that salicylic acid of certain concentrations could alleviate salt injury, improve germination percentage and potentiality, protect membrane permeability of Capsicum frutescans L. seed, and reduce conductivity and malondialdehyde content of the seed leaching solu- tion, eliminate membrane lipids peroxide. But when the concentration of salicylic acid reaches beyond a certain level, it could inhibit germination of Capsicum frutescans L. seed, and increase conductivity and malondialdehyde content of the seed leaching solution.
Keywords:salicvlic acid  Capsicum frutescans L    seed vigor  salt resistance
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