Современные возможности улучшения качества зерна озимой ржи методами селекции

Abstract

5 cycles of divergent selection on viscosity of a water extract (VWE) at a winter rye are lead. The divergence between populations depend both on a genotype of a variety and from a direction of selection. Selection in plus-direction was more effective, than in a minus-direction. The size realized herit-ability varied from h2=0,70 … 0,74 at plus-selection up to h2=0,33 … 0,44 at a minus-selection. Selection on viscosity correlatively has mentioned other attributes. Populations with high viscosity gave resistant to fluidity bread with a dense, elastic and fine-pore crumb, but with lower volume. Populations with low VWE had bread of higher volume, but with large-pore and a sticky crumb, is frequent with big cracks and emptiness. On the basis of synthetics with low (3,2 sP) and high (8,5 sP) VWE experiences on feeding chickens with the pur-pose of an estimation of nutritional value are lead. On a ration with low-viscosity rye С-4115 without the additive of a fermental preparation chickens gave a daily average gain on 14,6 % above and provided expenses of a forage for 13,0 % below, than on a ration with high-viscosity rye С-4120. On action on growth of chickens rations with low-viscosity a rye did not concede to a ration with wheat. Action of enzyme was effective at addition in a ration with high-viscosity a rye. The digestibility of dry substance a ration with low-viscosity a rye it was equal digestibility of wheat and did not depend on the additive of enzyme