RESEARCH ON THE VARIABILITY IN TRITICALE (xTRITICOSECALE WITTM.) ROSSES AS A SOURCE OF GENETIC DIVERSITY
HRISTO STOYANOV*, VALENTIN BAYCHEV
Department of Cereals Breeding, Dobrudzha Agricultural Institute – General Toshevo, General Toshevo, Bulgaria
*Corresponding author: hpstoyanov@abv.bg
Keywords: variability, genetic diversity, triticale
Abstract: In order to determine the possibility of occurrence of higher genetic diversity in hybrid combinations, ten triticale crosses in first hybrid generation and eleven triticale varieties were studied. Complete variation analysis of the studied parameters was carried out. Crosses 24/14 (Akord х Bumerang), 28/14 (Akord х Doni 52), 35/14 (Respekt х Irnik) and 36/14 (Respekt х Dobrudzhanets) demonstrated high variation of most of the parameters. Very low variation for a large number of indices was found in crosses 12/14 (Atila х Akord), 13/14 (Atila х Respekt), 26/14 (Akord х Dobrudzhanets) and 34/14 (Respekt х Bumerang). In combination with the mean values of the respective parameters, crosses 28/14 (Akord х Doni 52) and 36/14 (Respekt х Dobrudzhanets) were with highest probability for greater genetic diversity, which makes them valuable breeding material in the improvement work on triticale.