Investigations on Some Agronomical Characters and Hybrid Performances of New-Improved Synthetic Varieties in the Sunflower (Helianthus annuusL.)

Authors : Abdurrahim Tanju GÖKSOY, Zeki Metin TURAN

Pages : 247-254

View : 15 | Download : 6

Publication Date : 2000-04-01

Article Type : Research Paper

Abstract :This research was carried out to determine some agronomical characters and the hybrid performances for these characters of new-improved synthetic sunflower varieties insert ignore into journalissuearticles values(SYN.-1insert ignore into journalissuearticles values(A);, SYN.-1insert ignore into journalissuearticles values(B);, SYN.-1insert ignore into journalissuearticles values(C); and SYN.-1insert ignore into journalissuearticles values(D);); during the years 1994- 1997 at the Experimental and Research Farming of Faculty of Agriculture, Uludağ University. In the first year insert ignore into journalissuearticles values(1994);, the synthetic varieties were obtained by open pollination from the mixture of the inbred lines insert ignore into journalissuearticles values(SYN.-0insert ignore into journalissuearticles values(A);, SYN.-0insert ignore into journalissuearticles values(B);, SYN.-0insert ignore into journalissuearticles values(C); and SYN.-0insert ignore into journalissuearticles values(D);); forming each of the synthetic varieties. In the second, third and fourth years, four synthetic varieties, four mixtures of the inbred lines and two standard varieties insert ignore into journalissuearticles values(Vniimk-8931 and one commercial hybrid); were tested in a randomized block design with four replications in non-irrigated conditions. According to the three-year results of the research, the mean values of the characters in synthetic varieties varied between 149.7 and 154.4 cm for plant height; 15.4 and 16.7 cm for head diameter; 718 and 869 unit for the number of seeds/head; 53.9 and 56.5 g. for 1000 seed weight; 40.2 and 46.8 g. for seed yield/head and 1847 and 2114 kg/ha for seed yield per hectare. It was found that the synthetic varieties showed 8.0 to 13.4 % heterosis for plant height; 12.2 to 16.7% for head diameter; 31.2 to 43.0% for the number of seeds/head; 2.0 to 25.0% for 1000 seed weight; 38.1 to 72.4% for seed yield/head and 46.1 to 78.9% for seed yield per hectare. Synthetic-1insert ignore into journalissuearticles values(A);, Synthetic-1insert ignore into journalissuearticles values(C); and Synthetic-1insert ignore into journalissuearticles values(D); had 15.4% -19.0% greater seed yield as compared to the standard variety, Vniimk-8931. It was found that the varieties Synthetic-1insert ignore into journalissuearticles values(A);, Synthetic-1insert ignore into journalissuearticles values(C); and Synthetic-1insert ignore into journalissuearticles values(D); were of the same yield capacity as the commercial hybrid variety.
Keywords : Turk J Agric For, 24, 2000, , 247 254 Turk J Agric For, vol 24, iss 2