3.1.1.2. Number of leaves/shoot. Data in Table 1 showed significant differences concerning the number of leaves/shoot at the level of 5% among the applied different treatments. Moreover,the same data revealed that there is a positive relationship between increasing of Kin concentrations combined with NAA and number of leaves/shoot. The maximum number of leaves (15.5) was recorded with M4 followed by M13, M12 and M3 without signi cant differences between them. However, the minimum number of leaves/shoot appeared in MC followed by M8, respectively without signi cant differences between them. These results are in harmony with those obtained by Jagadev et al. [14] who stated that, MS medium supplemented with 3.0 mg/l BAP and 0.4 mg/l NAA was ideal for maximum number of leaves formation in Z. of cinale Rosc. While, Shukla et al. [29] found that MS medium supplemented with 3.0 mg/l BAP produced the optimum number of leaves of