Fourth generation of closed-population honeybee breeding 1. Comparison of selected and control strains

publication date: Jun 21, 2011
Send a summary of this page to someone via email.
Journal of Apicultural Research
Vol. 26 (3) pp. 170-180
Date
September 1987
Article Title

Fourth generation of closed-population honeybee breeding 1. Comparison of selected and control strains

Author(s)

Tibor I. Szabo And Leonard P. Lefkovitch

Abstract

The offspring of 10 queen honeybees (Apis mellifera) were divided and kept in northern and southern Alberta, and in each location, selected and control groups were established. A new generation of queens was reared each year representing all 10 queen families in each of the four groups. The primary selection criterion was short-term colony gain at the beginning of nectar flow (Szabo, 1982). The new queens were mated in four geographically isolated locations with drones from their 10 colonies. Sixteen colony traits were recorded from the test colonies. Twelve characteristics differed between control and selected groups of the combined north and south apiaries. These were: fall colony weight, winter food consumption, number of Nosema spores per bee in the fall, colony population in May, capped worker and drone-brood area, colony population in June, brood viability, propolizing, pollen collection, disease resistance, and short-term gain. When data for the northern location were analysed separately, there was a significant response to selection for an additional colony trait, total honey yield, for which there was a 25'6% increase in productivity over the control colonies. Fourteen characteristics differed between the northern and southern groups. Differences between selected and control groups are attributed to selection, and between the northern and southern groups to their respective environments 

Keywords

bee breeding, honeybee stock, queens, variance of characteristics

Full text
pdf
Free to Subcribers button     Buy Now for £5 button