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Diversity of sunflower pollinators and their effect on seed yield in Makueni District, Eastern Kenya 期刊论文
发表期刊: SPANISH JOURNAL OF AGRICULTURAL RESEARCH. 出版年: 2008, 卷号: 6, 期号: 2, 页码: 271-278
作者:  Nderitu, J.;  Nyamasyo, G.;  Kasina, M.;  Oronje, M. L.
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Apis mellifera  non-Apis bees  pollination efficiency index  pollination value