Effect of Different Soil Water Levels on Growth of Three Jujube Ziziphus jujuba Mill. Genotypes

2 Abstract: Suckers of jujube grown at Maryout Experiment Station, Desert Research Center (north western coast of Egypt) were studied under irrigation at different levels of available soil moisture (100%, 75%, 50% and 25%) during two successive seasons 2008 and 2009 to disclose the effect of water stress on some morphological and physiological aspects. Increasing water stress significantly reduced rate of stem length, number of leaves/plant, leaf area and fresh and dry weight of different plant organs. Date genotype had the highest significant performance to increase vegetative growth comparing with other genotypes used under water stress. Thus it might be recommended from results of the present study to use date genotype under drought conditions.