Total amount of 4.355 records of honeybee colonies production characteristics was estimated on the 251 bee
yards in Slovenia from 1993 to 2001. Queens were produced on 29 queen producing yards. The average
lsmeans of honey yields increased by 0,41 kg a year. The swarming behaviour and the defensive behaviour
of bees increased as well by - 0,091 points, and –0,038 points respectively. According to the last two years
records, the honey yields of bee colonies were significantly influenced by the drone gene pool at queen
production yards. The swarming behaviour was in contrary more influenced by the queen mothers on queen
production yards. The defensive behaviour of bee colonies and the daily varroa mite fall were not
significantly influenced by parents.