“…The Medicinal plants consider ahigh economical and medicinal value and they occupy ahigh status in this time in aplant production because of their important in averious life fields [1] and they are amain source for aplant medicinal drugs and araw matter to produce important chemical materials [2]besides that they have no side effects, for their use compared with thos drugs produced chemically as well as their capacity to inhibit amicrobs [3]. A cress plant (Lepidium sativum L.) belong to Asteraceae family, it has an important and medicinal benefits and high food important materials it contains many Vitamins (A,B 1 , B 2 , B 3 , B 5 , C, E, K, H) and it contains 32 k.callary, 55gm charbohydrats, 4.4 suger, 2.6 broteins, and elements Cu, Fe, Mg, Mn, P, K, Zn and I. for this importance there are different ways to develop its production like aplant growth regulators use as GA 3 and micro Nutrients as Fe and Mn GA 3 organic compound has a direct influence on growth [4] it makes to increase a cell devission and cell enlargement and other vegetative growth qualities.…”