A field experiment was conducted on sunflower hybrid MSFH-8 to study the effect of nitrogen in relation to boron nutrition on sunflower yield during summer 2009. The results of the experiment indicated significant influence of treatments on seed yield, stalk yield and harvest index, oil content and oil yield. Increasing levels of nitrogen from 60 to 120 kg/ha in combination of boron spray at different concentrations resulted in significant improvement in final seed yield. Maximum seed yield, stalk yield, harvest index and oil yield were observed with 120 kg N/ha+0.2% boron spray, while minimum was found with 60 kg N/ha+0.1% boron spray. But with the increasing levels of nitrogen from 60 to 120 kg/ha irrespective of boron spray decreased the oil content. The highest oil content was recorded by 60 kg N/ha+0.1% boron spray (40.3%) and the lowest oil content was observed by 120 kg N/ha+0.2% boron spray (38.0%).
Boron, Nitrogen, Oil content, Seed yield, Sunflower
