Selection of the most suitable explant for A. rhizogenes mediated transformation of L. corniculatus cv. Superroot. Root (A), internode (B), leaf (C) and stem section with one node (D) were used as explants for transformation to find the most suitable explant. Means of transformation frequencies were compared using a Fisher's LSD test (P < 0.05) and column bars with the same letter are not significantly different. The experiment was performed in independent triplicate and each experiment contained about 30 samples.