Year 2024, Volume 70 Issue 2 (30.06.2024)

Year : 2024
Volume : 70
Issue : 2 (30.06.2024)
   
Authors : Mykola NAZARENKO, Vladislav HORSHCHAR
Title : PECULIARITIES OF THE SODIUM AZIDE ACTION AS A FACTOR OF VARIABILITY ON WINTER WHEAT
Abstract : The study of new agents for indicating practical biodiversity in local varieties of winter wheat is a promising area in terms of obtaining both new commercial varieties and components for recombination selection. The purpose of the study was to demonstrate the possibilities in this regard as a sodium azide mutagen, primarily in terms of optimizing the yield of mutant forms based on local varietal resources. Winter wheat dry seeds of eight varieties were acted with water (control) and SА (sodium azide) action in concentrations of 0.01%, 0.025%, 0.05%, 0.1%. Successful use for all the varieties is primarily the effect of SA concentrations of 0.01%, 0.025%, for individual, less variable genotypes, the use of SA 0.05% can also be optimal in terms of the yield of valuable forms. Herewith, only three of the varieties demonstrated a significant genotype-mutagenic interaction in terms of significant changes in the parameters of variability, and only one of them in a positive sense. This agent is promising in obtaining short-stemmed, early-ripening, disease-resistant forms and lines with large grains and heads. Herewith, the number of negative changes is also quite high and their specific weight in the spectrum is higher in comparison with the previously studied factors of variability. Only one of the studied genotypes demonstrated the possibility of using it to create a mutation induction system with an increased yield of valuable forms. In the future, it is planned to study the variability in biochemical parameters of grain and resistance to abiotic environmental factors.
For citation : Nazarenko, M., Horshchar, V. (2024). Peculiarities of the sodium azide action as a factor of variability on winter wheat. Agriculture and Forestry, Agriculture and Forestry, 70 (2): 61-76. https://doi.org/10.17707/AgricultForest.70.2.5
Keywords : winter wheat, chemical mutagenesis, sodium azide, mutation, plant improvement.
   
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