HU Kexue,ZHANG Xiaoman,ZU Xiaoya.Effect of Different Exogenous Substances on Seeds Germination of Primula obconica Under Drought Stress[J].Northern Horticulture,2017,41(06):70-73.[doi:10.11937/bfyy.201706016]
不同外源物对干旱胁迫下四季报春种子萌发的影响
- Title:
- Effect of Different Exogenous Substances on Seeds Germination of Primula obconica Under Drought Stress
- Keywords:
- P.obconica; drought stress; exogenous substance; seed germination
- 文献标志码:
- A
- 摘要:
- 以四季报春（Primula obconica Hance）种子为试材，探索不同浓度CaCl2、SA和GB对9% PEG-6000干旱胁迫下种子萌发的影响。结果表明：9% PEG-6000（CK2）干旱胁迫下四季报春种子的萌发情况低于空白对照（CK1），用一定浓度的CaCl2、SA和GB分别浸种处理后能促进干旱胁迫下四季报春种子的萌发，且最佳缓解浓度为15 mmol?L-1、10 mg?L-1、5.0 mmol?L-1；3种外源物对种子萌发的促进作用以CaCl2效果最佳，SA效果最差。
- Abstract:
- P.obconica seeds were used as material to explore the effect of different concentrations of CaCl2，SA and GB on seeds germination under drought stress of 9% PEG-6000.The results showed that，seed germination of P.obconica，under drought stress of 9% PEG-6000 (CK2)，was significantly lower than that of the blank control group (CK1)；treatments of a certain concentration of CaCl2，SA and GB could promote seeds germination of P.obconica，and the best concentrations were 15 mmol?L-1，10 mg?L-1，5.0 mmol?L-1；the promoting effect of CaCl2 on seeds germination was the best and SA was the worst，between three exogenous substances.
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备注/Memo
第一作者简介：胡珂雪（1991-），女，硕士研究生，研究方向为园林植物与观赏园艺。E-mail：1203331020@qq.com.责任作者：张晓曼（1977-），女，博士，副教授，研究方向为植物遗传育种。E-mail：173610925@qq.com.基金项目：河北省林业厅科学技术研究资助项目（1402450）；河北省教育厅重点资助项目（ZD2016132）。