| 外源Ca2+对NaCl胁迫下黄瓜种子萌发的影响 |
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| 引用本文： | 张红,曹旭,余赢. 外源Ca2+对NaCl胁迫下黄瓜种子萌发的影响[J]. 安徽农业科学, 2011, 39(30): 18453-18454 |
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| 作者姓名： | 张红 曹旭 余赢 |
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| 作者单位： | 盐城工学院化学与生物工程学院,江苏盐城,224003;盐城工学院化学与生物工程学院,江苏盐城,224003;盐城工学院化学与生物工程学院,江苏盐城,224003 |
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| 基金项目： | 盐城工学院科研项目(XKY2007050) |
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| 摘 要： | [目的]了解Ca2＋对提高黄瓜种子抗盐性的缓解作用,为盐碱地的开发利用提供基本理论依据。[方法]采用室内水培法研究浓度100 mmol/L NaCl溶液胁迫下不同浓度的CaCl2和Ca（NO3）2对黄瓜种子发芽的影响。[结果]当Ca2＋浓度为10 mmol/L时,黄瓜种子的各项发芽指标都有显著的提高,且CaCl2缓解胁迫作用明显好于Ca（NO3）2。当Ca2＋浓度超过20 mmol/L时,随着Ca2＋浓度的增加,种子活力指数、胚根长及胚根鲜重明显下降,说明低浓度Ca2＋处理对NaCl胁迫下黄瓜种子的萌发有促进作用,但高浓度Ca2＋会出现抑制作用。[结论]不同浓度和不同种类的外源Ca2＋对NaCl胁迫下黄瓜种子发芽的缓解效应不同,低浓度Ca2＋处理对NaCl胁迫下黄瓜种子的萌发有促进作用,但高浓度Ca2＋会出现抑制作用。
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| 关 键 词： | 钙离子:NaCl胁迫 黄瓜种子 发芽 |
Effects of Ca~(2+) on Seeds Germination of Cucumber under NaCl Stress |
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| ZHANG Hong et al. Effects of Ca~(2+) on Seeds Germination of Cucumber under NaCl Stress[J]. Journal of Anhui Agricultural Sciences, 2011, 39(30): 18453-18454 |
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| Authors: | ZHANG Hong et al |
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| Affiliation: | ZHANG Hong et al(Department of Chemical and Biological Engineering of Yancheng Institute of Technology,Yancheng,Jiangsu 224003) |
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| Abstract: | [Objective] The aim was to study the effects of Ca2+ on cucumber seeds germination under NaCl stress so as to provide theoretical basis for the development and application of salt lick.[Method]The indoor water culture method was adopted to study the effects of different concentration CaCl2 and Ca(NO3)2 on seeds germination of cucumber under 100 mmol/L NaCl stress.[Result]When the Ca2+ concentration was 10 mmol/L,the seed germination indicators of cucumber were all significantly increased.And the mitigation ... |
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| Keywords: | Ca2 NaCl stress Cucumber seeds Germination |
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