Abstract
We investigated the in vitro propagation by axillary budding of different cultivars of tree peonies, selected for cut flower production under Mediterranean conditions. Buds with expanded leaves were better to initiate cultures than just emerged ones (64%compared to 43%). The aptitude for micropropagation was genotype-dependent, and the propagation ratio ranged between 2 and 5 per cycle. Tendency to necrosis and/or hyperhydricity were also genotype dependent. Indole-3-butyric acid improved rooting but was not really necessary provided the shoots were pre-treated at 2 °C for 7days. Plantlets were successfully acclimatized under in vitro conditions. Adventitious propagation was achieved using filaments and petals as explants. They first developed callus, able to regenerate shoots after 8 weeks on media supplemented with thidiazuron.
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Beruto, M., Lanteri, L. & Portogallo, C. Micropropagation of tree peony (Paeonia suffruticosa). Plant Cell, Tissue and Organ Culture 79, 249–255 (2004). https://doi.org/10.1007/s11240-004-0666-8
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DOI: https://doi.org/10.1007/s11240-004-0666-8