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Floral Structure, Stigma Receptivity and Pollen Viability in Relation to Protandry and Self-incompatibility in Silky Oak (Grevillia robusta A. Cunn)

Kalinganire, A; Harwood, C; Slee, Mike; Simons, A


The reproductive biology of Grevillea robusta growing under exotic conditions in Kenya and Australia is reported. The species showed both protandry and a self-incompatibility mechanism. The stigma was wet and papillate with a distinct groove in the middle. The anthers dehisced prior to anthesis, when the perianth opened. Stigmatic receptivity began 1 d after anthesis, with the greatest pollen germination rates and longest pollen tubes obtained 2 d after anthesis. Nectar secretion commenced with...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
Source: Annals of Botany
DOI: 10.1006/anbo.2000.1170


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