Characterisation of Wheat Mutagen Depression After Gamma-Rays Irradiated

Abstract

Here we report cytogenetic, plant growth and development characteristics of mutation induction variability of the new wheat varieties and some relationships between means of cytogenetic characteristics and different doses and types of mutagens. The strategy of investigation combined the identification of genotypes carrying specific low-sensitive to mutagen factor using cytological and morphometrical analyzes screening of mutagen treated wheat populations with the approach of comparing different varieties by breeding methods to reveal its connections and differences, specific sensitive to mutagens effects on cell and plant level. The main purposes of investigations in this area were determination of the mutagen-polluted area suitability for agriculture; determination more suitable varieties for planting on mutagen-polluted area or as a object for mutation breeding.

Mutagen depression after recurrent chemical mutagen action at first winter wheat generation

“…These concentrations and exposure are optimal for the breeding process that has been repeatedly established earlier. (Ahloowalia et al, 2004;Nazarenko, 2016). Non-treated varieties were used as a check for each variety.…”

“…Consequences of mutagen action on cell level (chromosomal aberrations) are closely connected with future mutation rate. Influence of mutagen factors action is depended on next parameter: physiological parameter of mutagen action object, genotype of object, type of mutagen action (acute, chronicle), nature of mutagen, doses or concentration of mutagen, fractional of dose or concentration, time of exposure, concentration or appearance of free active oxygen, temperature and other environmental conditions (Zhang et al, 2015;Nazarenko, Kharytonov, 2016).…”

The Impact of Nutrition Optimization on Crop Yield of Winter Wheat Varieties (Triticum Aestivum L.) and Modeling of Regularities of Its Dependence on Structure Indicators

“…tons and average capacity of 2.8 t/ha. Due to its favorable natural and climatic conditions the South of Ukraine is considered one of the leading regions for the production of soft winter wheat of high quality (Korchova et al, 2018;Nazarenko and Kharytonov, 2016).…”

Influence of Nitrosoalkylureas on Winter Wheat Plants at First Generation After Mutagen Action

“…We developed plant surviving, pollen fertility and yield structure for identification of mutagen depression (or stimulation) effects (Karthika, Subba, 2006;Nazarenko and Kharytonov, 2016).…”