“…1C). Necrosis of apical shoot tips and loss of apical dominance of some shoot cuttings were detected on control (MS without IBA) or under the influence of 0.5mg/L IBA as was reported in other plant species (Wang & Hu, 1984;Kataeva, 1986). Cytokinin deficiency during root formation led to stop cell divisions in the apical meristem and reduction of endogenous IAA and ABA synthesis.…”