Effect of Foliar spray of Tryptophan and Nitrogen fertilizer on Production of some medical active compounds in Rocket plant (Eruca sativa Mill.)


This research work was conducted in the research unit (A), College of Agriculture-University Baghdad in the growing season 2016-2017 to study the in fluence of foliar spray of Amino acied Tryptophan and Nitrogen fertilizer on improvement of qualities and quantity of the yields of Rocket( Eruca sativa Mill .(. The Tryptophan was foliar sprayed at four concentration 0,50,100 and 150mg.L-1 The spraying was done thrice .The nitrogen fertilizer as urea 46%N was added to the soil at three concentration 0, 75 and 150kg.ha-1. the results showd that spraying by tryptophan 150mg.L-1 and nitrogen at the rate 150 kg.ha-1 give best results in the percentage of nitrogen, phosphours and potassium in the leaves (1.49%, 0.55%, 2.15%) respectively. The leaf content of Quercetin, Kamepherol 1052.6 and 50.30 mg.g-1 and Tryptophan 78.451mg.g-1 while the control gave less results of studied characteristics.