THEME 2: Food, Agriculture and Fisheries, and Biotechnology
Harmful influence of inbreeding is often revealed, for example, in self-pollination of corn, potatoes or cabbage (the decrease in intensity of growth, fertility; the appearance of anomaly and deformities).
In hens annual coupling «brother x sister» leads to the hereditary decrease in egg-laying qualities and vitality. In human beings marriages between cousins result in the growth of frequency of hereditary diseases (especially rare ones) in children; inborn deformities, stillbirths and deaths in early age are more frequent than in unrelated marriages, by 24—48 %.
It is suggested to check the effects of inbreeding on quantitative features of woody plants (tree height, trunk diameter) by carrying out a controllable self-pollination and free pollination in a downy birch and silver birch.
Problems to be solved and results:
Stage-by-stage production of a necessary plant material will make it possible to check the necessary theoretical preconditions obtained as a result of tests on annual plants. An ultimate aim of the work is to obtain selfed lines in birch.