Determination of yield and yield components of some confectionery sunflower (Helianthus annuus L.) varieties in Kırşehir conditions

Sunflower is an important plant in meeting the demand for vegetable oil, and its production for confectionery consumption is widespread in Turkey. In order to compare the yield performance of varieties developed for confectionery, 10 sunflower varieties Affan, Ayberk,TG-400, G1, Ela. Stripy 1, Ahmetbey, Palancı 1, TTAE-ÇRZ-13-10 and Çiğdem-1) were used. The research was conducted at Kırşehir Ahi Evran University in 2023 according to the randomized block trial design with 3 replications. According to phenological results, emergence time, flowering time and physiological maturity time of sunflower were varied between 29-30 days, 80-899 days, 138-150 days, and respectively. Additionally, in the research, It was determined that plant height was varied between 142.00-168.17 cm, table diameter was varied between 15.45-19.50 cm, number of seeds in the table as 298.82-442.32 piece, seed yield as 133.14-222.51 kg/da. Among seed characteristics, kernel/hull ratio (47.86-52.09%), crude oil content (24.77-28.88%), hectolitre weight (250.00-299.00 kg/100 L), 5 mm (10.80-26.13%), 7 mm (20.63-60.00%) and 9 mm (18.43-67.47%) seed size were obtained. In the research, the highest seed yield of Ela, Ayberk and TG400 varieties was 222.51, 207.92, 204.19 kg/da, respectively, and the highest hectolitre weight and kernel ratio was obtained Palancı-1 variety as 299.00kg/100 L and 52.09%. As a result of the research, It can be said that Ela and Affan varieties are superior in Kırşehir ecological conditions in terms of grain yield, hectolitre weight and 9 mm sieve rate.