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| 苦槠种子形态性状的地理变异分析 | |
| 引用本文： | 岳华峰,邵文豪,井振华,卢 萍,黄 琳,姜景民.苦槠种子形态性状的地理变异分析[J].林业科学研究,2010,23(3):453-456. |
| 作者姓名： | 岳华峰 邵文豪 井振华 卢 萍 黄 琳 姜景民 |
| 作者单位： | 1. 中国林业科学研究院亚热带林业研究所,浙江,富阳,311400;国家林业局泡桐研究开发中心,河南,郑州,450003 2. 中国林业科学研究院亚热带林业研究所,浙江,富阳,311400 3. 国家林业局泡桐研究开发中心,河南,郑州,450003 |
| 基金项目： | 浙江省科技厅重大科技攻关项目(2006C12059-3);国家自然科技资源平台项目(2006DKA21003-09) |
| 摘 要： | 苦槠(Castanopsis sclerophylla (Lindl.) Schott.)为壳斗科(Fagaceae)栲属(Castanopsis (D. Don.) Spach.)植物1],是亚热带地区常绿阔叶林的重要建群树种,也是亚热带常绿阔叶林次生演替阶段重要的先锋树种,对群落的组成、外貌、功能等都有一定控制作用2].苦槠作为优良多用途树种,其生态效益、经济价值、食品保健功用及其在园林绿化中的地位已逐渐得到认可3-4].目前,国内对苦槠的研究已有了一定基础,但对苦槠种群遗传学研究较少.种子是物种遗传变异的重要特征之一,在分类和遗传上具有重要的价值5],种子形态不仅决定其扩散能力,也影响到种子的萌发和幼苗定植,进而影响到种群的分布格局6].研究苦槠种子性状变异及其地理分化,对了解苦槠种群遗传分布格局具有重要意义,进而也可为苦槠天然林的保护和人工林的营建提供理论参考. |
| 关 键 词： | 苦槠 种子性状 地理变异 |
Geographic Variation of Seed Characters of Castanopsis sclerophylla |
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| YUE Hua-feng,SHAO Wen-hao,JING Zhen-hu,LU Ping,HUANG Lin and JIANG Jing-min.Geographic Variation of Seed Characters of Castanopsis sclerophylla[J].Forest Research,2010,23(3):453-456. | |
| Authors: | YUE Hua-feng SHAO Wen-hao JING Zhen-hu LU Ping HUANG Lin and JIANG Jing-min |
| Abstract: | The Castanopsis sclerophylla seed length, seed diameter, seed length× seed diameter, seed length/seed diameter and hundred grain weight from nine areas were studied. The results showed that extremely significant difference were found in seed characters of C. sclerophylla from different areas. The most coefficient of variation is hundred grain weight and the least is seed length/seed diameter. Correlation analysis showed that the seed length and seed diameter had the significant positive correlation with hundred grain weight; seed became bigger and heavier as latitude became lower, the annual average temperature and frost free period become longer; the hundred grain weight had significant positive correlation with rainfall, seed length/seed diameter had significant negative correlation with the rainfall, And clustering analysis showed that phenotypic variation was basicaly continuous variation with the geography, which was consistent with the result of relevant analysis. |
| Keywords: | Castanopsis sclerophylla characters of seed geographic variation |
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