A Database for Triticeae and Avena
II.15. Combination of mutation variability with hybridization in
heterozygous hybrids of barley.
V. T. Manzyuk and M. R. Kozachenko. Ukrainian Institute of Plant Industry,
Plant Breeding and Genetics, Kharkov, U,S.S.R.
Some problems concerning the combination of hybridization with mutagenesis
were investigated (Manzyuk and Kozachenko 1971; Kozachenko 1971, in press).
Directed reaction in F1M1 and F2M2 to presowing irradiation of hybrid
seeds obtained in the year of crossing were not observed. Radiation induced
diverse mutations in M2. Splitting among mutant progenies of heterozygous
hybrids was observed. Therefore, selection in the mutant progenies and
in splitting mutant families of hybrids must be carried out for several
generations. Combination of mutation variability with hybridization makes
it possible to increase the diversity of forms in hybrid populations; it
may be one of perspective method of obtaining the initial material for
plant breeding. The various forms of plants having definite mutant characters
appeared in the following generations after selection of mutants. However,
splitting for induced mutant characters was not observed in mutant progenies
obtained from both hybrids and constant cultivars.
A series of valuable immutable lines was selected from both control
hybrids and irradiated ones. This enables us to combine hybridization and
mutation in plant breeding.
Kozachenko, M. R. 1971. Mutation variability of barley hybrids and cultivars
induced by gamma-rays "Experimentalny mutazii ta selekzija roslyn''. Kyiv,
U.S.S R. (In press).
Manzyuk, V. T. and Kozachenko, M. R. 1971. The use of hybridization
and mutation variabilities of spring barley. "Genetika i selekzija na ukraine".
Materialy II sjezda genetikov i selekzionerov Ukrainy. Kiev, U.S.S.R.
BGN 2 toc
BGN Main Index