Experiments were carried out during 1998 / 1999 and 1999 / 2000 seasons to evaluate the productivity of seven different newly imported sugar beet varieties planted in silty clay soil at Sakha Agricultural Research Station , Agricultural Research Center , Kafr El-Sheikh Governorate .  Growth , yield , yield components and root chemical contents of these varieties were monitored after 90 and 120 days from sowing and at harvest time as well .  Varieties studied showed significant differences in their productivity in the experimental site , whereas , Farida  var. was superior in root fresh weight .  Moreover , growth of these varieties varied at vegetative sampling periods , these variation were remarkably during the first 90 days from sowing , later growth characters values did not show significant differences at 120 days from sowing .  Farida var. showed superiorty in growth parameters and accordingly gave the highest root and sugar yield .  On the other hand , Farida variety did not form the hugest above ground vegetative mass since Athospoly variety was superior in top fresh weight / plant (0.94 kg / plant) and accordingly reached the maximum in top yield (25.8 ton / fed.) with no significant differences with Farida var. (26.3 ton / fed.) .  However ,  values of top yield (ton / fed.) between Farida and Athospoly did not differ significantly . Root fresh weights were varied significantly among the seven studied varieties , whereas , a percentage of 0 , - 2.94 , -18.63 , -17.65 , +19.61 , + 5.88 and +14.71 % deviation from the average fresh root weight / plant which was 1.02 kg   were calculated for Lola , Kawemira , Top , Raspoly , Farida , Pamela and Athospoly respectively . Varieties studied could be classified according to its root and sugar yield in the experimental site to ; I- High  productivity varieties which are , in descending order , Farida , Athospoly and Pamela  , II- Intermediate productivity varieties which is Lola  and III- Low productivity varieties which are , in descending order , Kawemira , Raspoly and Top < /p>