Open Access Research Paper Views (327) Download (14) The effect of water deficit on characteristics phisyological-chemical of sunflower (Helianthus Annuus L.) varieties Mahdi Seyed Salehi, Ahmad Afkari Bajehbaj J. Bio. Env. Sci.6( 2), 199-207, February 2015. Key: Leaf relative water contentLeaf water potentialPotassiumSunflowerWater deficit Details