The present study was carried out at El-Mattana Agricultural Research Station, (latitude of 25.17 o N and longitude 32.33 o E), Luxor Governorate, Upper Egypt in 2008/2009 and 2009/2010 growing seasons to evaluate the performance of three sugarcane varieties F. 160, Phil. 8013 and the commercial variety G.T.54-9) grown under different number of irrigations to obtain maximum cane and sugar yields/Fed. A split-plot experimental design with four replications was used in this work, where the main plots were assigned for number of irrigations, while sugarcane varieties were distributed in the sub-plots. The results showed that increasing the number of irrigations from 14 to 18 and 22 increased considerably stalk height, number of millable canes/m 2 , reducing sugars, cane and sugar yields/Fed. Meanwhile, sucrose, purity and sugar recovery percentages were insignificantly influenced by irrigation number. The tested sugarcane varieties differed significantly in stalk height, number of millable canes/m 2 , reducing sugars, juice purity %, cane and sugar yields. Commercial variety G.T. 54-9 recorded the highest values of stalk height and number of millable canes/m 2 (in both seasons) as well as purity %, cane and sugar yields (in the 2 nd season). Sugarcane Phil. 8013 variety attained the highest cane and sugar yields, in the 1 st season. Sugarcane F. 160 variety had the shortest stalks, the lowest number of millable canes/m 2 , juice purity%, cane and sugar yields, but it recorded the highest reducing sugars %, compared with the other two varieties. It could be concluded that under the conditions of the present work, growing either G.T.54-9 or Phil.8013 with the application of 22 irrigations can be recommended to obtain the highest cane and sugar yields/fed.

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