Reference
Heshmat S. Aldesuquy, S. A. Haroun, S. A. Abo-Hamed, A.A. Al-Saied (2011): Physiological Studies of Some Polyamines on Wheat Plants Irrigated with Waste Water. I. Osmolytes in Relation to Osmotic Adjustment and Grain Yield – Phyton, Annales Rei Botanicae, Horn – 50_2: 263 - 286.