The features of formation of yield qualities of certified seeds of sunflower varieties in different ecological conditions

The researches were conducted at the All-Russian Research Institute of Oil Crops by the name of Pustovoit V.S, (VNIIMK), Krasnodar region, The purpose of the research was to study features of formation of yield qualities of certified seeds of sunflower varieties Buzuluk, R-453, SUR, Lakomka and Oreshek of VNIIMK’s breeding, produced in the different regions of the Russian Federation. There were used seeds cultivated in Krasnodar, Stavropol, Voronezh, Volgograd, Saratov and Penza regions during 2012-2014. Seed yield qualities in progenies were estimated in 2014-2015 on plot with total sowing area 24.5 sq. m, accounting area - 12.2 sq. m, in three repetitions. Oil content of seeds was determined in accordance to the State Standard R 8.620-2006, 1000 seed weight due to the State Standard 12042-80. Progeny of the certified seeds of the oil varieties Buzuluk, R-453, and SUR, produced in the different region of Russia and performed in the contrasting soil and climatic conditions did not differed by its primary economically valuable traits. The conditions of a year of reproduction did not influenced on yield qualities of seeds in progeny. It testifies high stability of these variety populations being a result of the effective work of institution-originator at production stages from foundation to certified seeds. Possibility to obtain the seed of high quality of studied varieties at multiplication in the different soil and climatic zones of Russia was proved. Seed progeny of confectionary varieties Lakomka and Oreshek had significant differences depending on a place and year of reproduction in duration of a period emergence-flowering and plant height. It indicates the increased polymorphism of these variety populations and required for additional works on stabilization of traits during seed growing processes.