Reproductive biology and interspecific hybridisation of Acacia mangium and Acacia auriculiformis A. Cunn. ex Benth. (Leguminosae: Mimosoideae)

M. Sedgley, J. Harbard, R. M M Smith, R Wickneswari V Ratnam, A. R. Griffin

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

Acacia mangium and A. auriculiformis flowered between February and May, producing mature pods between October and April. The flowers of both species were similar in structure and showed weak protogyny and variable levels of andromonoecy. Male flowers either lacked pistils completely or had small sterile pistils. Controlled hand pollination resulted in pollen tubes in the pistil and penetration of the ovules following self and cross intraspecific and interspecific pollination. The cross A. auriculiformis × A. mangium was more successful than the reciprocal, but fertile seed was produced following interspecific pollination in both directions. There were relatively few insect visitors to the flowering branches, but the same suite of insects was observed foraging for pollen on both species. Native bees belonging to the Halictidae carried most polyads on their hairy bodies and may act as pollinating agents. -from Authors

Original languageEnglish
Pages (from-to)37-48
Number of pages12
JournalAustralian Journal of Botany
Volume40
Issue number1
Publication statusPublished - 1992
Externally publishedYes

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Acacia auriculiformis
Mimosoideae
Acacia mangium
interspecific hybridization
reproductive biology
pollination
Fabaceae
pistil
Biological Sciences
flower
protogyny
pollen
insect
Halictidae
bee
insects
flowering
male flowers
penetration
pollen tubes

ASJC Scopus subject areas

  • Plant Science

Cite this

Reproductive biology and interspecific hybridisation of Acacia mangium and Acacia auriculiformis A. Cunn. ex Benth. (Leguminosae : Mimosoideae). / Sedgley, M.; Harbard, J.; Smith, R. M M; V Ratnam, R Wickneswari; Griffin, A. R.

In: Australian Journal of Botany, Vol. 40, No. 1, 1992, p. 37-48.

Research output: Contribution to journalArticle

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