| NaCl胁迫对萝卜种子萌发的影响 |
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| 引用本文： | 徐芬芬,徐秀芳.NaCl胁迫对萝卜种子萌发的影响[J].吉林农业科学,2012,37(4):48-50. |
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| 作者姓名： | 徐芬芬 徐秀芳 |
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| 作者单位： | 上饶师范学院生命科学学院,江西上饶,334001 |
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| 基金项目： | 上饶师范学院科研基金资助项目 |
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| 摘 要： | 为探明盐胁迫对萝卜(Raphanus sativus L.)种子萌发的影响,用不同浓度的NaCl胁迫处理萌发期的萝卜种子。结果发现,低浓度(≤20 mmol/L)NaCl胁迫处理对萝卜种子发芽率、发芽势、发芽指数和活力指数等有显著促进作用,但对胚根长度、胚芽长度、胚鲜重的促进作用不显著。NaCl显著抑制萝卜种子萌发的浓度为100 mmol/L,显著抑制胚根生长的浓度为80 mmol/L,显著抑制胚芽生长的浓度为100 mmol/L。萝卜种子萌发的耐盐浓度、耐盐半致死浓度和耐盐极限浓度分别为155.02、250.02和402.02 mmol/L。
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| 关 键 词： | 萝卜 NaCl胁迫 种子萌发 |
Effects of NaCl Stress on Seed Germination of Radish |
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| XU Fen-fen
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XU Xiu-fang.Effects of NaCl Stress on Seed Germination of Radish[J].Jilin Agricultural Sciences,2012,37(4):48-50. |
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| Authors: | XU Fen-fen XU Xiu-fang |
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| Institution: | (College of Life Science,Shangrao Normal College,Shangrao 334001,China) |
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| Abstract: | The salt resistance of radish seed was studied by treating with different concentration NaCl at the germination stage.Results showed that low concentration of NaCl stress treatment(≤20 mmoloL-1) significantly promoted seed germination rate,germination potential,germination index and vigor index.The concentration of NaCl which significantly inhibited the seed germination was 100 mmol·L-1,while that significantly inhibited the radicle growth was 80 mmoloL-1,which significantly inhibited the germ growth was 100 mmol·L-1.The salt concentration,semi-lethal concentration and salt tolerance limit of radish seed germination were 155.02,250.02 and 402.02 mmol·L-1. |
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| Keywords: | Radish NaCl stress Seed germination |
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