Arshadullah, M., A. Ali, S. I. Hyder, I. A. Mahmood, and B.- uz-. Zaman. “Effect of Different Levels of Foliar Application of Potassium on Hysun-33 and Ausigold-4 Sunflower (Helianthus Annuus L.) Cultivars under Salt Stress: Potassium Application on Sunflower Cultivars”. Biological Sciences - PJSIR, vol. 57, no. 1, June 2018, pp. 1-4, doi:10.52763/PJSIR.BIOL.SCI.57.1.2014.1.4.