| 香果树种子发芽对水分胁迫的响应 |
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| 引用本文： | 刘延惠,崔迎春.香果树种子发芽对水分胁迫的响应[J].中国林副特产,2008(6):26-28. |
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| 作者姓名： | 刘延惠 崔迎春 |
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| 作者单位： | 贵州省林业科学研究院,贵阳,550005 |
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| 基金项目： | 贵州省林业厅攻关项目
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| 摘 要： | 通过用PEG（聚乙二醇）配制不同浓度溶液，模拟不同土壤水势梯度，达到不同水分胁迫水平，进行香果树种子发芽水分胁迫实验。研究结果表明；水势在0～-0．4MPa，随PEG浓度升高，香果树种子发芽率、发芽指数、苗长、活力指数均呈下降趋势。PEG浓度升至20%，种子发芽完全受抑制。表明香果树种子在轻度水分胁迫下，有一定的耐旱能力。
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| 关 键 词： | 香果树 水分胁迫 发芽率 发芽指数 苗长 活力指数 |
Water Stress Response in the Seed Germination of Emmenopterys henryi |
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| Liu Yanhui,Cui Yingchun.Water Stress Response in the Seed Germination of Emmenopterys henryi[J].Forest By-product and Speciality in China,2008(6):26-28. |
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| Authors: | Liu Yanhui Cui Yingchun |
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| Institution: | Liu Yanhui,Cui Yingchun(Guizhou Provincial Academy of Forestry,Guiyang 550005) |
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| Abstract: | In this paper,the treatment of water stress to Emmenopterys henryi Oliv seeds was made by the different concentrations of polyechylene glycol(PEG).The results shows that the water stress rang 0-0.4MPa,with increasing of concentration of PEG.,the germination percentage,germination exponent,seedling length,vitality exponent,germination speed of seeds decreased.When the concentrations of PEG raised to 20%,seeds germination were restrained completely.The results shows that Emmenopterys henryi Oliv seeds has a c... |
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| Keywords: | Emmenopterys henryi Oliv Water stress Germination percentage Germination exponent seedling length Vitality exponent |
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