Enhancing Drought Tolerance of Wheat (Triticum aestivgum L.) Through Foliar Application of Proline and L-Triptophan: Proline and L-Triptophan Induced Drought Tolerance in Wheat. Pakistan Journal of Scientific & Industrial Research. 2020;63(3):199-206. doi:10.52763/PJSIR.BIOL.SCI.63.3.2020.199.206