Effect of genotypic and environmental factors on the inheritance of the main characters in chickpea and relationships between them

R. Sturzu, T. Nistot, Cr. Melucă, Fl. Bodescu, A. Stoilova
Abstract. The objective of this paper was to evaluate the environmental influence weight compared to the weight of genetic variance in quantitative characters in chickpea main expression and phenotypic correlations between them. In the period 2011–2012, at the Agricultural Research and Development Station Teleorman, Romania, we conducted a series of experiments that included five species/groups of chickpea along with direct F hybrids obtained after a half 1 diallele cross. The results obtained showed that the coefficients of variation had values corresponding to the intended purpose and they are from 12.34% for the size of the plant to 20.17% for the seed weight per plant and seed size. High values of regression coefficients (b = 0.61 to 0.97) expressing the relationship Vr/Wr (variance and covariance parent – descendant) suggest large gene effects for the characters and small environmental effects and reveal a high probability of similarity of the descendants with their parents. Heritability coefficients in narrow sense that are due to additive gene action and are of importance for the breeding were high for all the characters. The presence of high and positive correlations between the characters allows purposeful selection on several characters simultaneously. Genetic information acquired from this study offer opportunities to chickpea breeders to intensify the rapid improvement of all studied characters.