Journal article

Onset and duration of stigma receptivity in Kunzea pomifera (Myrtaceae)

T Page, GM Moore, J Will, GM Halloran

AUSTRALIAN JOURNAL OF BOTANY | CSIRO PUBLISHING | Published : 2006

Abstract

The onset and duration of stigma receptivity in K. pomifera was evaluated by observing stigma peroxidase activity, pollen-tube growth and seed set, following controlled pollination of flowers of different ages. Peroxidase activity was negligible from 1 day before to 4 days after anthesis, increasing to a peak of 65% at Day 13. The percentage of pistils bearing germinated pollen and ovaries exhibiting pollen-tube entry increased when pollen was applied to the stigma from the day before anthesis, to a maximum at Days 6 and 7 after anthesis, respectively, followed by a decline by Day 9. Under greenhouse conditions the optimum pollination period, measured as the level of set seed after pollinati..

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University of Melbourne Researchers