GENETIC ANALYSIS OF PRODUCTIVITY COMPONENTS IN MALTING BARLEY (HORDEUM VULGARE, L.) HYBRID PROGENIES

S. Vasileva, M. Marcheva

Abstract: The investigation was conducted on the experimental field of the Agricultural University of Plovdiv, during the period 2011–2014. Coefficients of heritability and selection, the number of genes, transgressions and heterosis in relation to maintraits, determining productivity in malting barley crosses were studied. For this purpose biometrical data of P1, P2, F1 and F2 populations of four hybrid combinations were used. Hybridological analysis data of studied barley populations showed that the inheritance of some traits as plant height, productive tilling, main spike lenght, number of spiklets and grains, grains weight on spike and 1000-grain weight is mainly overdominant in direction of the higher trait values. Parental genotypes Kaskadior, 96105046, 96105023, Emon, 96105027 and 96105024 differ in a small number of genes affecting expression of productive tillering and grains weight on the spike. Based on the conducted analysis it was found that the mass selection by phenotype for main spike lenght, number of spiklets and grains and 1000-grains weight would be more effective in earlier hybrid generations (F2-F3).

Keywords: barley breeding; hybridological analysis; inheritance; malting barley; productivity components

Date published: 2017-08-30