The Effect of Honeybee for Increasing of Sunflower Productivity

Abstract

This research was conducted at the fields in college of agricultural engineering sciences,/University of Duhok Kurdistan region-Iraq 2020-2021 during two seasons spring and fall, to determine the role of honeybees on the productivity of sunflower oil. selected two sunflowers (Helianthus annuus) varieties; Flame variety and Peredovik variety were cultivated. The results showed the superiority of pollinators’ treatment of cultivar Flame which gave higher value in some characteristics total Sunflowers head weight for both seasons, total productivity wet weight for both seasons, total productivity dry weight for both seasons, reached 797.6 gm.,5000 gm, and 3900gm., respectively. And so, its superiority in the high physical characteristics of sunflower productivity during the fall season reached; a percentage of oil ratio of 57%, oils density of 0.82, refractive index1.3713, oils viscosity of 6.62, and protein percentage of 30.44%. The significant differences between cultivars, and both two seasons, and significant differences between pollinator plants compared to non-pollinators of sunflower productivity by insects, refer to insects role especially honeybees in the amount of sunflowers productivity, and their characteristics.