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Position: Home > Articles > Floral Syndrome and Breeding System of Agapanthus praecox ssp. orientalis 'Big Blue' Acta Horticulturae Sinica 2009,36 (11) 1697-1700

百子莲的花部特征与繁育系统观察

作  者:
卓丽环;孙颖
单  位:
上海农林职业技术学院;东北林业大学园林学院
关键词:
百子莲;花;繁育系统;杂交指数;花粉—胚珠比
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‘Big Blue’)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2~3d,花药全部开裂需要3~5h。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25622,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。
译  名:
Floral Syndrome and Breeding System of Agapanthus praecox ssp. orientalis 'Big Blue'
作  者:
ZHUO Li-huan1,2and SUN Ying2 (1Shanghai Vocational Technical College of Agriculture & Forestry,Shanghai 201600,China; 2College of Landscape and Architecture,Northeast Forestry University,Harbin 150040,China)
关键词:
Agapanthus praecox ssp. orientalis;flower;breeding system;outcrossing index; pollen-ovule ratio
摘  要:
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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