Adamenko D. Ways of creation multigerm pollinators of sugar beet and their selection on value.

A thesis for obtaining a scientific degree of degree Candidate of agricultural science in spesiality: 06.01.05 - plant breeding. Studying combining ability is an impostant stage of the breeding work. This is especially important at the first stages of breeding when it becomes necessary to evaluate large volumes of materials and selections of the most valuable initial forms within them There were identified and evaluated specific combinations of crosses of mul-tigerm pollinator lines and CMS lines, which resulted in the hybrids combining high root yields and sugar content. On the basis of the test carried out under conditions of various soil-climatic zones, the sugar beet hybrids developed with the use of multigerm pollinators of the Verhnyachka Experimental breeding station were evaluated for their plasticity and stability. At was proved that a positive interaction with environment of gene interactions of various types can be an equivalent component of heterosis effect of hybrids. On the basis of theobtained pollinator lines, a high-productive hybrid, which passed successfully the state variety testing and was registered under the name of Vesto was developed with the participation of the author.