首页|盐分和干旱胁迫对鼠尾草种子萌发的影响

盐分和干旱胁迫对鼠尾草种子萌发的影响

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为明确鼠尾草种子在逆境条件下的萌发特性,通过试验模拟研究不同浓度的氯化钠(NaCl)和聚乙二醇(PEG6000)溶液对鼠尾草种子萌发的影响,结果表明:NaCl和PEG6000对鼠尾草种子萌发有不同程度的抑制作用,发芽率、发芽势和发芽指数均有所下降;在0.10 mol/L NaCl溶液胁迫中,发芽率、发芽势最高,分别为88.33%和66.67%,0.40 mol/L时种子不能萌发;在4%PEG6000溶液胁迫中,发芽率、发芽势最高,分别为81.67%、66.89%.由此可知,鼠尾草种子在中轻度盐土壤中能较正常萌发,在重度盐土壤中则丧失萌发能力.
Effects of salt and drought stress on the germination of sage seeds
To define the germination characteristics of sage seeds under adverse situations,the authors had done simulation experiments to research the influence of sodium chloride(NaCl) and polyethylene glycol (PEG6000) with different concentrations on the germination of sage seeds.The results showed that:NaCl and PEG6000 both had restraining influence on sage seeds in different degrees,which caused the decline of seeds' germination rate,germination power and germination index.Under the stress of 0.10 mol/L NaCl solution,the highest germination rate and power were 88.33% and 66.67%,respectively;when in the solution of 0.40mol/L concentration,the seeds could not germinate.Under the stress of 4% PEG6000 solution,the highest germination rate and power were 81.67% and 66.89%,respectively.These results indicated that the sage seeds can normally germinate in mild salt soil,but in heavy salt soil the germination ability of sage seeds will be lost.

Salvia officinalis L.seed germinationsalt stresswater stress

赵硕、闫佳伦、刘凯月、董彦娜、刘冬云

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河北农业大学园林与旅游学院,河北保定071000

鼠尾草 种子萌发 盐分胁迫 水分胁迫

河北农业大学创新创业项目河北省科技厅项目

201506315227534

2016

林业与生态科学
河北农业大学

林业与生态科学

影响因子:0.299
ISSN:2096-4749
年,卷(期):2016.31(2)
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