Parent`s genetic variability- a condition for successful wheat improvement

Pri utvrđivanju ciljeva i programa oplemenjivanja oplemenjivač se vrlo često susreće sa problemom izbora odgovarajućih roditelja, koji će svoja pozitivna svojstva u što većoj mjeri prenijeti na potomstvo. Posebno je važno koristiti genetski što divergentnije roditelje koji će međusobnim križanjem osigurati dovoljan kvantum genetske varijabilnosti i omogućiti izbor željenih genotipova. U ovom radu korištenjem DUS parametara utvrditi ćemo genetsku divergentnost roditelja u nekim kombinacijama križanja, divergentnost potomstava na osnovi komponenata uroda i kvalitete zrna i brašna, te istaknuti najperspektivnije linije dobivene iz ovih križanja.When selecting the goals and programs of improvement, the improver frequently faces the problem of selecting the adequate parents, which would transfer their positive traits, as much as possible, to their descendants. It is of particular importance to use the genetically most divergent parents who would assure, by their mutual cross-breeding, a sufficient quantum of genetic variability and enable a selection of desired genotypes. In this study we shall determine, by using DUS parameters the genetic divergencies of parents in certain cross-breeding combinations, divergency of their descendants on the basis of the crop components and the quality of grain and flower, and emphasize the most prospective lines obtained from these cross-breed