2015•Annals of Plant Protection SciencesRequires access

Pollination efficiency of Honey bees in Sunflower (Helianthus annuus L.)

K. Venata Krishna, Y. Prashanth, B. Yogeeswarudu

Abstract

Studies on the pollination efficiency of honeybees in sunflower (Helianthus annuus) revealed that the seeds/capitulam (1278), 1000 seeds weight (47.3), and % crinkled seeds (8.2) were maximum in six framed Apis mellifera pollinated crop followed by one colony of A. florea pollinated crop. The six framed A. mellifera yield in (16.4q/ha−1), one colony of A. florea (15.0 q/ha−1), and% seed setting in A. mellifera (86.9%) crop was significantly higher over the pollination without insects. Although six framed A. mellifera pollinated crop was statistically at par with one colony of A. florea pollinated crop but the % germination was significantly in higher six framed A. mellifera (94.3%) followed by open pollination (93.5%)

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Key concepts: Helianthus annuus, Sunflower, Pollination, Crop, Open pollination, Biology, Germination, Honey Bees