ZHONG Jing,CHEN Da-peng.Effect of NaCl Stress on Seed Germination and Seedling Growth of Rice[J].HEILONGJIANG AGRICULTURAL SCIENCES,2016,(05):18-20.[doi:10.11942/j.issn1002-2767.2016.05.0018]
NaCl胁迫对水稻种子萌发和幼苗生长的影响
- Title:
- Effect of NaCl Stress on Seed Germination and Seedling Growth of Rice
- 文章编号:
- 1002-2767（2016）05-0018-03
- Keywords:
- rice; seed germination; seedling growth; NaCl stress
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 为探究水稻品种的耐盐性，以湖北省广泛种植的5个水稻品种种子为材料，研究了不同NaCl水平（0、50、100、150、200 mmol?L-1）对水稻种子萌发和幼苗生长的影响，并分析比较了粳稻和籼稻对NaCl胁迫耐受性的差异。结果表明：中低浓度NaCl对水稻种子的萌发抑制作用较弱，而高浓度NaCl对水稻种子萌发具有十分显著的抑制作用，且这种抑制作用随着NaCl浓度的升高而增强；同时NaCl胁迫对5种水稻幼苗的生长都呈现出较为明显的抑制作用；此外，粳稻笑丰6号表现出较好的NaCl胁迫耐受性，而籼稻金优152和两优289的NaCl胁迫耐受性较差。
- Abstract:
- In order to explore the salt resistance of rice varieties,a field of experiment was carried out to study the effects of NaCl stress with different concentrations ( 0,50,100,300,500 mmol?L-1 ) on seed germination and seedling growth of five rice varieties that widely cropped in Hubei province.Then,the differences of NaCl stress between japonican and idica were also analyzed and compared.The results showed that NaCl with low or moderate concentration can inhibit the seed germination weakly while NaCl with high concentration can obviously inhibit the seed germination,and this inhibitory effect was enhanced with the increase of NaCl concentration.The NaCl stress on the growth of five rice seedlings emerged significant inhibition.Moreover,japonican Xiaofeng 6 showed better tolerance to NaCl stress,while idica Jingyou 152 and Liangyou 289 showed poor tolerance to NaCl stress.
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备注/Memo
收稿日期：2016-01-26