Induced mutagenesis in breeding Cerasus tomentosa Thub. | Интродуцированный мутагенез в селекции Cerasus tomentosa Thub.
2013
Buchenkov, I.E., Belarusian State University of Informatics and Radioelectronics, Minsk (Belarus) | Chernetskaya, A.G., Polesje State Univ., Pinsk (Belarus)
The problems of chemical mutagenesis use to create the initial breeding material of Cerasus tomentosa Thub. were examined in the conditions of the Republic of Belarus. There was established more mutagenic effect of nitrosoethylurea than nitrosomethylurea independently from the parent cultivar. Nitrosoethylurea and nitrosomethylurea solutions in concentrations greater than 0,5 mM have a lethal action on the seed embryo of Cerasus tomentosa Thub. We've obtained mutants with morphological changes, which are expressed in the modification of leaves and shoots. A greater percentage of forms with economically valuable traits (resistance to moniliasis, dry peel of berries and macrocarpa) is observed in seeds processing of Cerasus tomentosa Thub. cultivars by 0,1 mM solutions of nitrosoethylurea at exposure of 12 hours and by 0,25 mM solutions of nitrosomethylurea at exposure of 24 hours.
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