- 期刊
- OpenAccess
Analysis of floral Biology of Vicia villosa Roth. (Fabaceae)
並列摘要
An analysis of the of sexual reproduction ability of Vicia villosa Roth. have been investigated. The biological material consisted of a tunisian cultivar (Sejenane) and two accessions originating from ICARDA (International Center of Agricultural Research in Dry Areas): acc. 2565 and acc. 3615. Pod formation rate (P/F), number of seeds per pod (SPP), and the number of empty pods per plant (NEP) were higher under free pollination than in self-fertilization without release, suggesting that this species is characterized by a preferential allogamy. That Allogamy seems to be ensured by a sporophytic autoincompatibility. The gap between the number of seeds per pod (2.6 seeds on average) and the number of ovaries per gynaecium (4 ovaries on average) may reflect a fertilization malfunctioning in Vicia villosa Roth. The sporophytic auto-incompatibility, associated to both low pollinic germination rate (24 %) and flowers losses caused by gathering bumblebees (Bombus terrestris L.) constitute the main factors explaining the low fertility of this forage species.
延伸閱讀
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