Penicillin 10-80 M.u/1 has promote the bud differentiation and control over the growth of the bud from callus of the clove carnation. When penicillin is at the concentrations of 80 M.u/1 can bring abnor-mal phenomena to the growth of the buds. Penicillin has control over the growth of the cuttings. With the growth of the shoots and the heighten of its concentration penicillin control over the adventitious rooting increases and the control over bud growth weakens or even disappears. Penicillin gives evident effect to the elimination of vitrificat...
