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园艺学报 ›› 2009, Vol. 36 ›› Issue (11): 1697-1700.

• 研究报告 • 上一篇    下一篇

百子莲的花部特征与繁育系统观察

卓丽环1,2*; 孙颖2   

  1. (1上海农林职业技术学院, 上海201600; 2东北林业大学园林学院, 哈尔滨150040)
  • 收稿日期:2009-02-19 修回日期:2009-07-20 出版日期:2009-11-25 发布日期:2009-11-25
  • 通讯作者: 卓丽环

Floral Syndrome and Breeding System of Agapanthus praecox ssp. orientalis‘Big Blue’

ZHUO Li-huan1,2*;SUN Ying2   

  1. (1 Shanghai Vocational Technical College of Agriculture & Forestry, Shanghai 201600, China; 2College of Landscape and A rchitecture, Northeast Forestry University, Harbin 150040, China)
  • Received:2009-02-19 Revised:2009-07-20 Online:2009-11-25 Published:2009-11-25
  • Contact: ZHUO Li-huan

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。

关键词: 百子莲, 花, 繁育系统, 杂交指数, 花粉&mdash, 胚珠比

Abstract: We conducted a field investigation of the floral syndrome and breeding system of Agapanthus praecox ssp. orientalis‘BigB lue’ 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.

Key words: Agapanthus praecox ssp. orientalis, flower, breeding system, outcrossing index, pollenovule ratio

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