In vitro germination of pollen from almond ( Prunus amygdalus Batsch), peach [ P. persica (L.) Batsch], apricot ( P. armeniaca L.), plum ( P. salicina Lindl.), and sweet cherry ( P. avium L.) after freezing in liquid nitrogen was similar to unfrozen pollen. In vivo germination of frozen pollen was confirmed with apricot and cherry.
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Parfitt et al. (1984) studied this question.
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