Abstract
The experiment was carried out in horticulture department ,College of Agriculture and forestry ,Mosul University, during agri-season 2005-2006 ,to study the effect of priming seeds of carrot cv. Nantes in osmotic solution of PEG6000 with concentration 0,-4,-8 Bar,also the effect of fertilization by mineral fertilizer Calcium nitrate, Super phosphate and Potassium sulphate with three levels (30,40.45),(60,80,90) and (120,160,180) kg/ donum in addition to fourth level (without fertilizer) and the interaction of them in vegetative and root growth ,and production per unit area ,and the concentration of chlorophyll in the leaves.Results revealed that there are significant increase in fresh and dry weight for canopy of priming seeds in osmotic solution for PEG with concentration -8 bar also as a result of adding fertilizer at three levels ,the highest fresh and dry weight for canopy were 27.45,3.63 gram /plant adding for the interaction treatment between prim the seeds in concentration -8 bar from PEG6000 with the third level of fertilizer. Fertilizer treatments caused significant increases in length ,diameter root and the highest values for these characteristics were 12.63,3.73 cm respectivellay ,and the interaction treatment between prim seeds in -8 bar concentration for PEG6000, with the fertilizer treatment at fourth level 120,160,180 kg/ donum gave highest weight / root 114.25 gram with highest production for unit area 2.23 ton /donum and the highest concentration for chlorophyll content in leaves 12.22 mg/ ml susp. green matter.
