Efficiency of immunologic researches in stabilization of productivity of sunflower

Abstract

The purpose. To determine genotypes of sunflower with high level of resistance to agents of false mildew, phomopsis and gray mould. Methods. Field, laboratory, statistical. Results. 21 high-yielding hybrids of sunflower with high disease resistance are created by the method of using in selection program genotypes with chosen attributes. Conclusions. The variance in productivity of hybrid-standard Dariy and newly created hybrids Oreiol and Zlatson makes 0,34 and 0,38 t/hectare that increases index of profit for 1 ton for 52,3 and 483,9 hrn, and level of profitableness – for 2 and 20% accordingly.