1.22. Inheritance of quantitative characters in some maize hybrids

Between 2005 and 2006 in the Maize Research Institute – Kneja are investigated the manifestation of heterosis and the degrees of dominance in F₁ and F₂ of the hybrids Kn 689Б, Kn 611, Kn 613, Kn 625, Kn 683A based on the traits: plant high, length of the ear and number of seeds per ear. It is established that the inheritance of the traits occurs in a clearly expressed positive heterosis and depression. There is certain variation depending on the year of growing.
Analyze of the degrees of dominations in F₁ and F₂ based on the investigated traits shows that the manifestations of heterosis is due to overdominance, epistasis and dominance of the respective conditions of growing.