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Flowering, pollination and seed production of Acacia nilotica
Author(s) -
Tybirk Knud
Publication year - 1989
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/j.1756-1051.1989.tb01014.x
Subject(s) - biology , inflorescence , pollen , pollination , acacia , botany , ovule , ovary , point of delivery , pollinator , horticulture , endocrinology
Acacia nilotica flowers during the rainy season in Kenya. The flowers shed their pollen between 07.30 and 12.00 hours. Average pollen production is 1.1 million grains per inflorescence. Pollination is by native solitary bees of the genera Creightonella, Chalicodoma, Megachile, Anthophora, Nomia and Xylocopa. Less than 1/3 of the flowers are hermaphroditic and the pod set per hermaphroditic flower is 0.3 percent. The ovary contains 16 ovules, and the average seed set per pod is 10.8. One tree can produce more than 30000 seeds in one fruiting season.