| 百子莲的花部特征与繁育系统观察 |
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| 引用本文： | 卓丽环,孙颖.百子莲的花部特征与繁育系统观察[J].园艺学报,2009,36(11):1697-1700. |
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| 作者姓名： | 卓丽环 孙颖 |
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| 作者单位： | (上海农林职业技术学院, 上海201600; 东北林业大学园林学院, 哈尔滨150040) |
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| 基金项目： | 上海市科技兴农重点攻关项目 |
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| 摘 要： | 通过观察, 运用杂交指数、花粉、胚珠比、人工授粉和套袋试验等方法, 对上海市引种的处
于半自然状态的百子莲(Agapanthus praecox ssp. orientalis‘BigBlue’) 的开花状态、繁育系统进行了研究。结果表明: 百子莲单花花期一般2～3 d, 花药全部开裂需要3～5 h。开花过程中柱头与花药无明显空间隔离现象, 雄蕊先于雌蕊成熟。杂交指数等于4, 花粉-胚珠比等于25 622, 结合人工套袋和授粉试验的结果, 可以确定该物种的繁育系统属于异交为主, 部分自交亲和, 传粉过程需要传粉者。
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| 关 键 词： | 百子莲 花 繁育系统 杂交指数 花粉-胚珠比 |
| 收稿时间： | 2009-2-19 |
| 修稿时间： | 2009-7-20 |
Floral Syndrome and Breeding System of Agapanthus praecox ssp. orientalis 'Big Blue' |
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| ZHUO Li-huan,SUN Ying.Floral Syndrome and Breeding System of Agapanthus praecox ssp. orientalis ''Big Blue''[J].Acta Horticulturae Sinica,2009,36(11):1697-1700. |
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| Authors: | ZHUO Li-huan SUN Ying |
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| Institution: | ( Shanghai Vocational Technical College of Agriculture & Forestry, Shanghai 201600, China; College of Landscape and A rchitecture, Northeast Forestry University, Harbin 150040, China) |
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| Abstract: | We conducted a field investigation of the floral syndrome and breeding system of Agapanthus praecox ssp. orientalis ' Big Blue' in artificial populations in Shanghai, China. The results showed that flowering lasted 2 to 3 days and anther dehiscence lasted 3 to 5 hours. On the day of anthesis, the styles were shorter than the filaments. Spatial positioning of stigma and anthers were spatially desperation. The total value of OCI is 4 and the value of P/O is 25 622. The seed set rate with different treatments showed that its breeding system could be determined as outcrossing with partly self-compatible and needed pollinators during the pollination. |
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| Keywords: | Agapanthus praecox ssp orientalis flower breeding system outcrossing index pollenovule ratio |
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