| 外源赤霉素对盐胁迫下盐角草种子萌发及幼苗生长的影响（摘要） |
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| 引用本文： | 李萍,华春,周泉澄,周峰,陈全,赵梦丹,李建玲,郑青松.外源赤霉素对盐胁迫下盐角草种子萌发及幼苗生长的影响（摘要）[J].农业科学与技术,2011,12(2):217-221. |
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| 作者姓名： | 李萍 华春 周泉澄 周峰 陈全 赵梦丹 李建玲 郑青松 |
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| 作者单位： | 李萍,LI Ping(南京师范大学生命科学学院,江苏南京210046;南京晓庄学院生物化工与环境工程学院,江苏南京211171);华春,周泉澄,周峰,陈全,HUA Chun,ZHOU Quan-cheng,ZHOU Feng,CHEN Quan-zhan(南京晓庄学院生物化工与环境工程学院,江苏南京,211171);赵梦丹,李建玲,ZHAO Meng-dan,LI Jian-ling(南京师范大学生命科学学院,江苏南京,210046);郑青松,ZHENG Qing-song(南京农业大学资源与环境科学学院,江苏省海洋生物学重点实验室,江苏南京210095) |
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| 基金项目： | 江苏省高校自然科学基础研究面上项目，江苏省植物生理学精品课程建设项目，浙江省科技厅创新团队建设与人才培养项目，南京晓庄学院优秀教学团队项目(4085024).Supported by General Projects of Basic Research of Natural Science in Jiangsu Universities (KJD180118) & Excellent Course Construction Project of Plant Physiology in Jiangsu Province (2010) & Innovative Team Building and Personnel Training Programs in Zhejiang S |
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| 摘 要： | 目的]研究外源赤霉素（GA3）对盐胁迫下盐角草种子发芽及幼苗生长的影响。方法]通过不同浓度（0、100、300、500、700mmol/L）的NaCl结合10μg/mlGA3处理,研究了外源GA3对盐胁迫下盐角草种子萌发及幼苗生长的影响。结果]外源GA3提高了盐胁迫条件下盐角草的发芽率、发芽势、发芽指数以及活力指数。在外源GA3处理下,盐角草的根系活力、幼苗根茎长及耐盐性都高于单盐处理。结论]在一定浓度范围内,外源GA3能缓解盐胁迫对盐角草种子萌发及幼苗生长的抑制作用。
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| 关 键 词： | 盐角草 外源赤霉素 盐胁迫 萌发 幼苗生长 |
Effects of Exogenous GA3 on Seed Germination and Seedling Growth of Salicornia europaea L.under Salt Stress |
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| LI Ping,HUA Chun,ZHOU Quan-cheng,ZHOU Feng,CHEN Quan-zhan,ZHAO Meng-dan,LI Jian-ling,ZHENG Qing-song.Effects of Exogenous GA3 on Seed Germination and Seedling Growth of Salicornia europaea L.under Salt Stress[J].Agricultural Science ＆ Technology,2011,12(2):217-221. |
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| Authors: | LI Ping HUA Chun ZHOU Quan-cheng ZHOU Feng CHEN Quan-zhan ZHAO Meng-dan LI Jian-ling ZHENG Qing-song |
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| Institution: | 1.College of Life Sciences,Nanjing Normal University,Nanjing 210046;2.School of Biochemical and Environmental Engineering,Nanjing Xiaozhuang College,Nanjing 211171;3.College of Resources and Environmental Sciences,Jiangsu Provincial Key Laboratory of Marine Biology,Nanjing Agricultural University,Nanjing 210095 |
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| Abstract: | Objective] The paper was to study the effects of exogenous GA3 on seed germination and seedling growth of Salicornia europaea L.under salt stress.Method] With the combination of different concentrations of NaCl(50,100,150,200,250,300,350,400 mmol/L)with 10 μmol /L GA3 treatments,the effects of exogenous GA3 on seed germination and seedling growth of S.europaea under salt stress were studied.Result] Exogenous GA3 promoted the seed germination rate,germination capacity,germination index and seed vigor index of S.europaea under salt stress.Under the treatment of exogenous GA3,the root system vigor,the lengths of roots and stems and the salt-tolerance of S.europaea were higher than that of single salt stress treatment.Conclusion] Within a certain concentration range,exogenous GA3 could alleviate the inhibition effects of salt stress on seed germination and seedling growth of S.europaea. |
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| Keywords: | Salicornia europaea L Exogenous GA3 Salt stress Germination Seedling growth |
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