Differences in the spring wheat varieties response to herbicide as a stressor

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When assessing the sensitivity level, some difference was found, probably genetically determined, in the response of plants of different varieties to the herbicide as a stress factor. One of the analyzed varieties shows a decrease in growth rate of axial organs against the background of lower mitotic activity of apical meristem and increased frequency of cell division abnormalities associated with increased herbicide dosage. In another variety, there were no significant dependencies in growth and development with this factor. The most sensitive was the average total length of the seedling roots. In a more sensitive variety, in the absence of a stressor, its level of variability was initially lower and increased at a double dose of herbicide. In the same variety, there was less connectivity of the parameters studied, which, however, increased with the action of the stress factor.