Chemical mutagens were also used by treating banana shoot tips to produce variants for tolerance to Fusarium wilt (Jain 2010). EMS has been successfully used on chrysanthemum, yielding a frequency of 5.2% mutants. A wide range of variations in petal colour (pink-salmon, light-pink, bronze, white, yellow and salmon colour) have been recorded. Luan et al. (2007) treated sweet potato (Ipomoea batatas L.) and callus with EMS and obtained salt tolerant lines. Cha-um et al. (2013) selected six mutant lines of sugarcane which were conducted from gamma irradiation and EMS and resulting in two cultivars namely AE-11 and KK3 that were identified as salt tolerant.