N. ANTONOVA and G. RACHOVSKA
Institute of Plant Genetic Resources “K. Malkov”, BG - 4122 Sadovo, Bulgaria
ANTONOVA, N. and G. RACHOVSKA, 2010. Morphological and Biological Peculiarities of Mutant Lines of Naked Oats, cv. Mina. Bulg. J. Agric. Sci., 16: 9-16
A study was carried out on 25 parameters of mutant lines of spring naked oats cv. Mina, obtained by seed treatment. The mutant lines M 15/2, M 20/23, Mx 5/18 and Mx 20/56, obtained after gamma irradiation (in doses of 150 and 200 Gy) as well as treatment with natrium azide 0.10 mM and 10 mM, excelled the standard Mina in terms of grain yield, length, width and area of the flag and second leaves. They were characterized with shorter
stem and early ripening. The used mutagenic factors and doses gave a reason to predict higher grain yields, when the area of the flag leaf was about 38 cm2 and second leaf - 55 - 62 cm2.