The present study was undertaken during the seasons of 2005/2006 and 2006/2007 to evaluate the degree of grafting compatibility, budding success percentage and seedling growth of some new orange cultivars namely; Navelina, New hall, Navelate and Washington Navel and Valencia oranges budded on Volkamer lemon. The obtained results reveal that, budded Valencia orange on Volkamer lemon gave a higher percentage of graftage success than those obtained from the other orange cultivars under study. Furthermore, budding New hall or Navelate on the same rootstock gave vigorous seedling with higher shoot length, thickness, number of leaves and leaf area than those obtained from Navelina orange. Whereas, budding Valencia orange on Volkamer lemon gave a taller seedling than those obtained from Washington Navel orange. In this respect, budding New hall or Navelate on Volkamer lemon presented a good seedling than obtained from Valencia, Washington Navel orange and Navelina orange which presented a lower seedling growth.