The effect of genetic parameters on inheritance of the first pod hight in snap bean - Phaseolus vulgaris L

In order to research the inheritance, gene effect, combination abilities and genetic variance components, we investigated six divergent snap bean genotypes (Supernor, Darija, Grinkrop, Palanacka rana, Sumadinka and Zora) and their F1 progeny created by diallel crossing without reciprocals. For the trait of height of forming the first pod, variance of average value of parents and hybrids was highly significant. The value of dominant components (H1 and H2) was higher than additive component (D), meaning that dominant genes control the inheritance of number of pods per plant. The average level of domination ?Hl/D is higher than 1, pointing to superdomination. Heritability in broader sence amounts 90% pointing to high contribution in inheriting the number of pods per plant. U cilju istrazivanja nacina nasledjivanja, efekta gena, kombinacionih sposobnosti i komponente geneticke varijanse, ispitivano je sest divergentnih genotipova boranije (Supernor, Darija, Grinkrop, Palanacka rana, Sumadinka i Zora) i njihovo F1 potomstvo dobijeno dialelnim ukrstanjem - bez reciprocnih. Za osobinu visine formiranja prve mahune dobijena je visoko znacajna varijansa srednjih vrednosti roditelja i hibrida. Izracunate vrednosti dominantih komponenti (H1 i H2) su vece od aditivne komponente (D), sto ukazuje da u nasledjivanju broja mahuna/biljci u F1 generaciji preovladavaju dominantni geni. Prosecan stepen dominacije ?H1/D je veci od 1 i ukazuje na superdominaciju. Heritabilnost u sirem smislu iznosi 90% i ukazuje na visok udeo genetickih faktora u nasledjivanju broja mahuna po biljci.