EXPANDING OF GENE POOL COLLECTION WITH POLLEN FERTILITY PATERNAL LINES-RESTORERS AT “OPYTNOYE KHOZYAISTVO MASLICHNYKH KULTUR” (“EXPERIMENTAL FARMING OF OILSEEDS”) LLP, EAST KAZAKHSTAN REGION

Abstract

In 2021, a research work was carried out at “Opytnoye Khozyaistvo Maslichnykh Kultur” (“Experimental Farming of Oilseeds”) LLP within the budget program 267 “Improved Availability of Knowledge and Scientific Research” under the “Preservation, Maintenance, Creation of an Information Database of the Sunflower Gene Pool” project. One of the objectives of this work was to expand the collection of the gene pool with pollen fertility paternal lines-restorers. The subjects of research were classical and special purpose self-pollinated sunflower lines. Evaluation of pollen fertility paternal lines-restorers was carried out on morphological and qualitative indicators, in particular - the length of the growing season, the mass of 1000 seeds, the percentage of husk, seed fat content, as well as seed condition. Phytopathological assessment of the studied lines was carried out in the field during the period of mass flowering and before harvest. Currently, there are 460 lines in the collection of the gene pool of sunflower paternal lines at “Opytnoye Khozyaistvo Maslichnykh Kultur” (“Experimental Farming of Oilseeds”) LLP. In 2021, another 5 constant lines will be transferred to the collection for production of classical hybrids and 3 Rf lines for obtaining herbicide-resistant hybrids.The relevance of the work lies in the fact that the genetic potential of sunflower is not being used fully, therefore the gene pool formation of this culture and study of biological and economic characteristics and properties of collection samples of sunflower for further breeding research is an important task today.