“…Embryogenic system offers an ideal tool for in vitro production and selection of transgenic plants (Finer and McMullen, 1991;Christou, 1997). Such methods are available only for few grain legumes such as Glycine max (Finer and Nagasawa, 1988), Vigna aconitifolia (Kumar et al, 1988), Vigna unguiculata (Kulothungan et al, 1995), Cajanus cajan (Anbazhagan and Ganapathi, 1999) Chickpea (Kiran et al, 2005) and Horsegram (Varisai et al, 2004). In majority of these cases, preference for 2,4-D for embryogenic callus induction is well established (Griga et al, 1987;Mohamed et al, 2004;Anbazhagan and Ganapathi, 1999).…”