Single tubers of two sweet potato cultivars (‘Carmen Rubin’ and ‘White Triumph’)
were obtained from the Department of Specific Plant Cultivation, University of Life
Sciences in Lublin. Two micropropagation cycles were carried out and two types of
medium were used in each cycle. Both of them contained the basic components of the
MS medium [Murashige and Skoog 1962], the difference being the content of growth
regulators. The first medium was supplemented with 1 mg dm-3 gibberellin (GA3) and
0.1 mg dm-3 kinetin (KIN), while the second one – with 0.5 mg dm-3 of indole-3-acetic
acid (IAA).