Interactive effects of different intra-row spacing and nitrogen levels on yield and yield components of confectionery sunflower (helianthus annuus l.) genotype (alaca) under ankara conditions
The aim of the research was to determine the effects of different intra-row spacing (20, 30 and 40 cm) and nitrogen levels (0, 40, 80 and 120 kg ha-1) on yield and yield components of confectionery sunflower genotype (Alaca). The experiment was laid on “Randomized Complete Block Design” as split plots with three replications. The highest seed yield obtained from 20 cm intra-row spacing and 120 kg ha-1 nitrogen and the score were 243.3 kg da-1 and 315.3 kg da-1 in 2007 and 2008.