Yield capacity and grain quality of productive Triticum aestivum L. mutants, induced by chemical mutagenic factors of the environment

  • V. V. Morhun
  • R. A. Yakymchuk


Aim. Taking into account the fact that the zones of local massive chemical soil contamination could have unique conditions of the effect of gene-toxic factors on living organisms, the purpose of the research was to study yield capacity and some parameters of grain quality of productive T. aestivum L. mutants, induced by chemical techno-genic mutagenic factors of the environment. Methods. The yield from each plot was determined based on three-year data. The determination of the total protein and gluten content and the studying of the indicators of grain firmness were carried out in М6 by the method of infra-red spectroscopy (NIR). Gluten quality was determined by sedimentation indicator SDS-30. Results. Samples were selected whose yield exceeded the initial form by 1.2–9.0%. In most of them by the content of protein and gluten in grain, the indicator of sedimentation and grain firmness corresponds to the level of an initial form or does not equal it considerably. Mutant sample № 5561 of cultivar Albatros odeskyi, induced by the contamination with the discharges of Burshtyn ThPS, was found; its yield capacity was supplemented by a serious increase of grain quality indicators. Conclusions. Using the effect of chemical techno-genic mutagenic factors of the environment, it is possible to improve the indicators of wheat yield capacity and grain quality. The expansion of the genetic diversification of the initial breeding material due to a gene-toxic effect of xenobiotics creates perspectives for its use to implement breeding-genetic programs of the improvement of wheat cultivars.

Keywords: Triticum aestivum L., mutagenic factors, productive mutants, yield capacity, grain quality.


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