| 荨麻叶龙头草花期器官生物量分配研究 |
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| 引用本文： | 徐敏敏,董琼,于建国,轩志龙,夏富才.荨麻叶龙头草花期器官生物量分配研究[J].吉林林业科技,2016(2):19-23. |
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| 作者姓名： | 徐敏敏 董琼 于建国 轩志龙 夏富才 |
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| 作者单位： | 1. 西南林业大学林学院,云南昆明,650224;2. 吉林市新山苗木专业合作社,吉林 吉林,132013;3. 北华大学林学院,吉林吉林,132013 |
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| 摘 要： | 选取处于花期的荨麻叶龙头草30株,对其根、茎、叶及花等器官生物量及其分配相关关系进行研究。结果表明:花期各器官生物量表现为根茎叶花,变异系数分别表现为19.38%、17.20%、31.34%;花生物量分配变异系数相对较大,说明其调节生殖分配能力较强。植株高度与各器官生物量呈正相关性,但不显著;根生物量分配与总生物量呈极显著正相关,茎叶及花生物量分配与总生物量均呈负相关,但花器官生物量分配不显著。花期各器官物质分配规律是:由营养器官(根)、支持器官(茎)、光合器官(叶)向生殖器官(花)转移,在林分郁闭后,其茎直接转换成茎状根,为下一年繁殖做好准备。说明其具有自我调节各器官生产力分配能力,对外界有较强适应性。
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| 关 键 词： | 荨麻叶龙头草 生态适应性 生物量分配 |
Biomass distribution research of florescence organs of Meehania fargesii |
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| Abstract: | The biomass and its distribution relative correlativity of the organ such as root, stem, leaves and flowers was re-searched by choosing 30 Meehania fargesii which were in the state of florescence.The result showed that each organ bio-mass of florescence was root>stem and leaves>flowers.The variable coefficient was 19.38%,17.2%,31.34%.The var-iable coefficient of biomass distribution of flower was large relatively.It demonstrated that the ability of adjusting reproduc-tion distribution was better.The height of plant and biomass of each organ presented positive correlation, but it was not sig-nificant.The biomass distribution of root and total biomass presented significant positive correlation while the biomass dis-tribution of stem, leaves and flower presented significant negative correlation.Each organ material distribution ragularity of florescence was it transferred from nutritive organ(root), support organ(stem),photosynthetic organ(leaf)to reproductive organ(flower).Its stem transferred to root directly after stand closed for the preparation of reproduction next year.It demon-strated that it had the ability of adjusting fertility of each organ by itself.In addition, it had better adaptation. |
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| Keywords: | Meehania fargesii ecological adaptability biomass distribution |
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