| 毛果苔草生殖分蘖株生长及生殖分配的表型可塑性调节 |
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| 引用本文： | 李小钌,刘晓东,邢军会,倪宏伟.毛果苔草生殖分蘖株生长及生殖分配的表型可塑性调节[J].东北林业大学学报,2009,37(9). |
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| 作者姓名： | 李小钌 刘晓东 邢军会 倪宏伟 |
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| 作者单位： | 1. 东北林业大学,哈尔滨,150040
2. 黑龙江省科学院自然与生态研究所 |
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| 基金项目： | 黑龙江省杰出青年科学基金项目 |
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| 摘 要： | 在三江平原毛果苔草(Carex lasiocarpa)籽实成熟期间,广泛采集生殖分蘖株,测定和分析了不同高度级别分蘖株数量性状的生态可塑性及其调节规律.结果表明:毛果苔草生殖分蘖株高与雌小穗数、小花数、穗生物量、茎叶生物量、株生物量呈显著或极显著的直线正相关关系,与种子数、种子生物量呈显著的幂指数正相关关系,与结实率呈极显著的直线负相关关系;生殖分配Ⅰ平均(19.78±2.36)%,生殖分配Ⅱ平均(6.94±2.68)%,毛果苔草对有性生殖的投入极低.生殖分配Ⅰ与分蘖株高、分蘖株生物量均呈显著的幂指数负相关,生殖分配Ⅱ与分蘖株高、分蘖株生物量均呈极显著的直线负相关.毛果苔草生殖分株数量特征和生殖分配表现出的规律性,反应了天然生境条件下毛果苔草种群生长与生殖的适应性.
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| 关 键 词： | 毛果苔草 生殖分蘖株 数量特征 生物量 生殖分配 |
Phenotypic Plasticity of Reproductive Tiller Growth and Reproductive Allocation in Carex lasiocarpa |
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| Li Xiaoliao,Liu Xiaodong,Xin Junhui,Ni Hongwei.Phenotypic Plasticity of Reproductive Tiller Growth and Reproductive Allocation in Carex lasiocarpa[J].Journal of Northeast Forestry University,2009,37(9). |
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| Authors: | Li Xiaoliao Liu Xiaodong Xin Junhui Ni Hongwei |
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| Institution: | Li Xiaoliao,Liu Xiaodong(College of L,scape Architecture,Northeast Forestry University,Harbin 150040,P.R.China),Xing Junhui,Ni Hongwei(Nature , Ecology Institute,Heilongjiang Academy of Sciences) |
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| Abstract: | The reproductive tillers of Carex lasiocarpa were widely sampled in Sanjiang Plain during seed ripening stage.The ecological plasticity and growth regulation of quantitative characters of the tillers from different height classes were analyzed.Results of statistical analysis showed that the height of the tillers had a significant or a highly significant positive linear correlation with number of female spikes,number of florets per head,spike biomass,stem and leaf biomass,and total biomass,and a significantl... |
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| Keywords: | Carex lasiocarpa Reproductive tillers Quantitative characters Biomass Reproductive allocation |
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