Volume 48 Number 3 Article 9 Pages: 176-182
Year 1994 Month 7
Title: Fruit and Seed Set of Half-High Blueberry Cultivars Following Repeated Pollinations at Varying Time Intervals
Authors: R.C. Harrison, J.J. Luby and P.D. Ascher
Citation
Abstract:
Self pollinations were detrimental to the fertility of the blueberry cultivars St.
Cloud, Northsky,
and Northcountry compared to outcross
pollination with 'Nortnblue.' Multiple self pollinations resulted in higher fruit set than single
self pollinations.
For 'Northcountry,' initial self
pollinations negatively affected seed set from
subsequent outcross pollinations performed up
to 24 h later.
With 'St.
Cloud' and 'Northsky,'
.outcross pollen applied up to 24 h following an
initial self pollination was apparently 'outcompeting'
or preferentially fertilizing ovules.
Varia
tion in seed set among cultivars may have been
due, in part, to differences in number of available ovules and timing of their receptivity.
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