JIN Zheng-lv,LIU Cong-cong.Effect of NaCl Stress，Seed Size and Their Interaction on Seed Germination and Seedling Growth of Vigna unguiculata (Linn.) Walp.[J].Northern Horticulture,2013,37(08):39-42.
氯化钠胁迫与种子大小及其互作对架豆角种子萌发及幼苗生长的影响
- Title:
- Effect of NaCl Stress，Seed Size and Their Interaction on Seed Germination and Seedling Growth of Vigna unguiculata (Linn.) Walp.
- 文章编号:
- 1001-0009（2013）08-0039-04
- Keywords:
- Vigna unguiculata (Linn.) Walp.; NaCl stress; seed size; seed germination; seedling growth
- 分类号:
- S 643.1
- 文献标志码:
- A
- 摘要:
- 以“架豆王”架豆角为试材，研究了NaCl胁迫与种子大小及其互作对架豆角种子萌发及幼苗早期生长的影响。结果表明：NaCl胁迫显著影响架豆角种子的发芽率、幼苗根长、芽长及鲜重。当NaCl浓度≤50 mmol/L时发芽率的抑制程度不显著，而当NaCl浓度＞50 mmol/L时，盐分对发芽率的抑制作用非常明显，NaCl浓度达到150 mmol/L时，种子发芽完全被抑制。幼苗的根长和芽长在所有的NaCl浓度下都表现出显著的抑制，而幼苗的鲜重只是在NaCl浓度＞50 mmol/L时才表现出显著的抑制效果。种子大小的差异对架豆角种子幼苗的根长及芽长没有显著的影响，但对发芽率和幼苗的鲜重表现出显著的作用。NaCl胁迫和种子大小的互作在发芽率、幼苗根长、芽长及鲜重4个指标中都没有达到显著水平。
- Abstract:
- Taking Vigna unguiculata (Linn.) Walp.‘Jiadouwang’ as test material，the effects of NaCl stress on early growth and seed size and its interaction on seed germination and seedling growth were studied.The results showed that NaCl stress significantly affected seed germination rate，root length，shoot length and fresh weight of Vigna unguiculata (Linn.) Walp.It had less effects on corn seeds germination when the density of NaCl solution was less than 50 mmol/L，but had significantly inhibited when the density was over 50 mmol/L and the seed germination was entirely suppressed when the density of NaCl solution was 150 mmol/L.The root length and shoot length showed a significant inhibition in all of the NaCl concentration，however，the germination rate and fresh weight of the seedlings had significantly inhibited when the density of NaCl solution was over 50 mmol/L.Seed size on root length and shoot length was not significantly affected，but a significant impact on the germination rate and fresh weight of seedlings.Interaction between NaCl stress and seed size on germination rate，root length，shoot length and fresh weight did not significantly affect.
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备注/Memo
第一作者简介：金正律（1960-），男，吉林延吉人，博士，副教授，现主要从事种子生理及分子生物学的教学与科研工作。E-mail：jin366@sina.com.