Correlation connections and inheritance of row number on the cob, weight of 100 kernels and grain yield on maize (Zea mays L.)

Abstract

Genetic variability between inbred lines, way of inheritance and correlation connections between analyzed traits is present in this work. Five inbred lines and their hybrids were analyzed by measuring the row number per cob, weight of 100 kernels and grain yield. Founded way of inheritance for row number per cob was superdomination, intermediar and one combination showed same level as parents. Weight of 100 kernels was inherited at the better parent level and intermediar, and in the inheritance of grain yield we founded superdomination. Between row number per cob and grain yield per plant medium-strong correlation (0.449) was found, between row number per cob and weight of 100 kernels was medium-strong but negative correlation, and grain yield vs. weight of 100 kernels did not show any correlation.

U radu je utvrđivana genetička varijabilnost između ispitivanih inbred linija, zatim utvrđivan je način nasleđivanja i međusobna povezanost proučavanih osobina kukuruza. Ispitivana su svojstva broj redova zrna na klipu, masa 100 zrna i prinos zrna po biljci kod pet inbred linija i njihovih hibrida. Način nasleđivanja broja redova bila je superdominacija, intermedijarnost a kod jedne kombinacije nasleđivanje je bilo na nivou roditelja, kod mase 100 zrna dominacija boljeg roditelja i intermedijarnost, a superdominacija kod prinosa zrna po biljci. Između broja redova zrna na klipu i prinosa zrna po biljci utvrđena je srednje jaka korelacija (0,449), između broja redova zrna na klipu i mase 100 zrna utvrđena je srednje jaka negativna korelacija (-0,597), dok između prinosa zrna po biljci i mase 100 zrna korelacije nema.