Abstract
High cytokinin concentration medium induced multiple shoot. on thc basal part of the main stem generat.ed from cultured rice seeds. Hist:olog'ical observat.ions were done on sections of the basal part of main stem and showcd that multiple shoot originated from two types of bud - axillary buds from the primordium of tiller of the first leaf nodeand adventitious buds from the basal region of the first leaf. The adventitious buds were derived from epidermal and subepidermal cell layers on two fixed sites in the abaxial side of the base of the first leaf, where between these two sites the tiller of tho first leaf node could be found.
