ВЛИЯНИЕ МЕТОДА ПОЛУЧЕНИЯ ОДНОСУТОЧНЫХ ЯИЦ НА АДАПТАЦИОННЫЕ СПОСОБНОСТИ ТУТОВОГО ШЕЛКОПРЯДА BOMBYX MORI L

Abstract

The silkworm is the object that shows solutions of major genetic problems such as artificial regulation of sex, cloning, the theory of a complex of compensatory genes explaining the nature of heterosis and others are solved. Despite the progress made in the genetics of the silkworm, issues of genotypes interaction with the environment are still poorly studied. Breeding signs of the silkworm manifest themselves in certain conditions of keeping and feeding the caterpillars. This article presents the results of 3-years breeding work on the adaptation of large-scale and mid-cone populations to unfavourable conditions, for instance non-observance of the hygrothermal mode, non-observance of the optimum feeding area and amount of feed mulberry leaves. Moreover, during these three years of experiments, the control population was the variants of experimental rocks and lines, where the graene was obtained on the first day of laying. Control populations were much sturdier and more productive than experienced options. Large breeds were more sensitive to abrupt changes in caterpillar content. Thus, in the Guzal and Marvarid rocks, the cocoon mass in 3 experimental variants decreased by 24.4% compared to the control variant, where the caterpillars were kept in optimal conditions of the hydrothermal mode and feeding. In populations of high-tech lines No. 27 and No. 28, the deviation from the optimum by the mass of the cocoon for three selected generations under adverse conditions was not very noticeable. The same trend is determined by the mass of the silk shell in Line 27 (experience with non-compliance with the temperature regime).