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The effect of mode of pollination on Allium species with observation on insects as pollinators

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Journal of Apicultural Research
Vol. 24 (1) pp. 62-66
Date
March 1986
Article Title
The effect of mode of pollination on Allium species with observation on insects as pollinators
Author(s)
Jitender Kumar, R. C. Mishra and J. K. Gupta
Abstract
At two sites in Himachal Pradesh, India, seed set, seed weight and seed germination were compared for 3 Allium species which were open-pollinated, enclosed in nylon cages or covered with cloth bags. Seed set and germination were significantly higher in open-pollinated than in caged umbels, but there was no significant difference between treatments for mean weight of 100 seeds. The Indian honeybee, Apis cerana indica, was the most frequent insect visitor. Of the three onion species, Allium cepa was preferred by insect visitors over Allium fistulosum and Allium cepa fistulosum. Apis dorsata foraged exclusively for nectar, but although most Apis cerana collected nectar, a small percentage collected both nectar and pollen. The amounts of pollen adhering to the bodies of foraging insects varied greatly, honeybees carrying significantly larger amounts than all other insect species except Eristalis tenax.
Keywords

pollination, Allium species, insect, pollinators, Apis cerana indica

 
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