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Pollen tube growth in cross pollinated and self pollinated cultivar nonpareil almond prunus dulcis



Pollen tube growth in cross pollinated and self pollinated cultivar nonpareil almond prunus dulcis



Journal of the American Society for Horticultural Science 108(4): 643-647



Investigation of pollen grain germination and retention on the stigma, and pollen tube frequency in the style following compatible (cross) and incompatible (self) pollinations in 'Nonpareil' almond [P. dulcis (Mill.) D.A. Webb Syn. P. amygdalus Batsch.] revealed that rejection of incompatible male gametophytes occurs on the stigma as well as in the style. Self-pollinations are characterized by lower pollen grain retention on the stigma, reduced and delayed pollen germination, and, where pollen germination had occurred, a low frequency of pollen tubes growing through the style. Pollen tube growth slowed greatly after the tubes entered the ovarian locule before they reached the ovule.

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Accession: 006138947

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