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Fidelity of Hymenoptera and Diptera pollinators in onion (Allium cepa L.) pollination
Shafqat SAEED,Asif SAJJAD1,권오석,권용정 한국곤충학회 2008 Entomological Research Vol.38 No.4
Onion (Allium cepa L.) is protandrous in nature and requires cross-pollination to avoid inbreeding. The pollination potential of native bees (Hymenoptera) and true flies (Diptera) was assessed in the perspective of finding the best pollinators for onion cross-pollination and seed multiplication. The community of pollinators was composed of four bee species and twelve true fly species. Episyrphus balteatus, Eupeodes sp.,Musca domestica and Eristalinus aeneus were the most abundant pollinators. The maximum pollinator activity was observed from 12 to 24 days after opening of the flowers. The pollination effectiveness of tested bees (Apis dorsata and Apis florea) was greater than true flies (E. balteatus, Eupeodes sp., M. domestica, E. aeneus and Callihoridae sp.) in terms of Spears values.