Abstract:        This research was carried out at private farm under the official supervision of Faculty of Agriculture, Minia University and Sids Horticulture Research Station, Agricultural Research Center, Giza, Egypt, during the two successive winter seasons of 2007/2008 and 2008/2009 in sandy soil of the new reclaimed area in west Beni - Suef conditions using a drip irrigation system. The objective of this study was to determine the effect of plant population on growth, yield and yield components of four garlic genotypes. Genotypes Eggaseed-1, Sids-40, clone St133 and Egyptian were cultivated to study two plant populations (60 and 90 plants / m²). As plant density increased, the total fresh and cured yield increased from 7.99 to 10.37ton per Fed., and from 4.52 to 5.66 ton per fed., respectively. This increase in fresh weight of individual plants, bulb fresh weight, bulb dry matter percentage, cured bulb weight and bulb size characteristics decreased significantly as plant population increased. No significant differences were found among the tested treatments for number of cloves per bulb. Eggaseed - 1 had the highest total yield