Yield characters of sunflower hybrid seeds as influenced by different year's weather conditions

It was estimated yield, oil content and oil yield per hectare of sunflower hybrids Kubansky 930, Kubansky 480, Kubansky 939, Mercury, Prizer and Avangard in depending from different years weather conditions during there's hybrid seeds reproduction. It is found out that yielding ability of hybrid seeds does not depend from meteorological conditions during hybrid seeds reproduction. This is a conformation of the priority of breeding material genetic peculiarities above environmental conditions. Sunflower hybrid seeds both from field and greenhouse cultivation had the similar yielding ability.