NAZARLI, H., M. R. ZARDASHTI, R. DARVISHZADEH, and S. NAJAFI. “The Effect of Water Stress and Polymer on Water Use Efficiency, Yield and Several Morphological Traits of Sunflower under Greenhouse Condition”. Notulae Scientia Biologicae, vol. 2, no. 4, Dec. 2010, pp. 53-58, doi:10.15835/nsb244823.