| 药用植物蚬壳花椒种子休眠及萌发特性 |
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| 引用本文： | 马英姿,杨波华,王平.药用植物蚬壳花椒种子休眠及萌发特性[J].湖南师范大学自然科学学报,2009,32(2). |
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| 作者姓名： | 马英姿 杨波华 王平 |
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| 作者单位： | 中南林业科技大学生命科学与技术学院,中国,长沙,410004 |
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| 基金项目： | 湖南省教育厅重点项目，湖南省科技计划项目，湖南省教育厅面上资助项目，湖南省自然科学基金 |
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| 摘 要： | 为研究木本药用植物蚬壳花椒生殖环节中的致危因素,采用多种方法处理其种子,研究其休眠和萌发特性.结果表明,当年成熟的种子去除种皮后可以萌发,证明种子的胚发育成熟,种皮的透水性也较好,与休眠关系不大;休眠的主要原因可能是种皮内含有抑制萌发物质,及种皮坚硬的机械阻碍作用.采用不同的处理,获得种子萌芽率较高的方法为:浓硫酸处理6 min,去除种皮,然后用50 mg·L-1的GA3浸泡5 min,清洗后置于25℃恒温培养箱内培养,萌芽率可达60%.
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| 关 键 词： | 蚬壳花椒 种子 休眠 萌芽 萌芽抑制物 |
Study on Seed Dormancy Mechanism and Germination of Zanthoxylum dissitum Hemsl |
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| MA Ying-zi,YANG Bo-hua,WANG Ping.Study on Seed Dormancy Mechanism and Germination of Zanthoxylum dissitum Hemsl[J].Journal of Natural Science of Hunan Normal University,2009,32(2). |
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| Authors: | MA Ying-zi YANG Bo-hua WANG Ping |
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| Institution: | School of Life Science and Technology;Central South University of Forestry and Technology;Changsha 410004;China |
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| Abstract: | In order to explore the underlying mechanisms relevant to the impediment in the sexual reproduction of Zanthoxylum dissitum Hemsl. The characteristics of the dormancy and germination of its seeds is studied. The result shows that the germination inhibitors exist in the seed coat, which are believed to be main impediment to the germination. The permeability of water of the seed coat is good, but the thick and hard seed coat has hindrance function to its germination. When the seed coat peels off, it could be ... |
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| Keywords: | Zanthoxylum dissitum Hemsl seed dormancy germination germination inhibitors |
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