30 Table 1 . Differences in the ability to form adventitious buds and shoots among several tomato cultivars at the third week . Cultivar Percentage of shooted explants Shoot number / explant Campbell 28 69 a 1 . 45 b Amalia   54 ab 1 . 50 b Lignon 69 a 1 . 55 b Rilia 15 b 1 . 57 b Floradel   54 ab 1 . 88 a ESx±     0 . 01*** 0 . 06**