| 7种蓼属植物繁育系统的初步研究 |
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| 引用本文： | 方应兵,邵剑文,卫姚,张小平.7种蓼属植物繁育系统的初步研究[J].生物学杂志,2009,26(1):38-40. |
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| 作者姓名： | 方应兵 邵剑文 卫姚 张小平 |
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| 作者单位： | 1. 安徽师范大学生命科学学院,芜湖241000;合肥市第十七中学,合肥230022
2. 安徽师范大学生命科学学院,芜湖,241000 |
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| 摘 要： | 观测了7种蓼属植物的花部形态特征，并运用花粉-胚珠比和杂交系数的方法对其繁育系统进行了初步研究。结果表明这7种蓼属植物的繁育系统应为自交和异交并存的混合交配型。P/O比与花序长度和花朵直径有明显的正相关关系，异型花的P/O比要明显高于同型花的P/O值。
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| 关 键 词： | 蓼属 繁育系统 花粉-胚珠比 杂交系数 |
Pilot study on the breeding system of seven species of Polygonum |
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| FANG Ying-bing,SHAO Jian-wen,WEI Yao,ZHANG Xiao-ping.Pilot study on the breeding system of seven species of Polygonum[J].Journal of Biology,2009,26(1):38-40. |
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| Authors: | FANG Ying-bing SHAO Jian-wen WEI Yao ZHANG Xiao-ping |
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| Institution: | FANG Ying-bing, SHAO Jian-wen, WEI Yao, ZHANG Xiao-ping(1. College of Life Science, Anhui Normal University, Wuhu 241000, China; 2. The Seventeenth High School of Hefei City, Hefei 230022, China) |
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| Abstract: | The floral characteristics, pollen-ovule ratio, and out-crossing index of seven species in polygonum were investigated. The results indicated that the breeding system of these species was mainly out-crossing by the way of partly mixed selfing. The P/O ratio was positively correlated to the length of inflorescence and the diameter of the flower. The P/O ratio of the species with homostylous flower was significantly lower than that of the species with heterostylous flower. |
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| Keywords: | Polygonum breeding system pollen-ovule ratio outcrossing index |
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