Abstract
Axillary shoot bud multiplication has been achieved in Eucalyptus hybrid, FRI-5 (E. camaldulensis Dehn. X E. tereticornis Sm.) by using explants from a 24-year-old, mature tree. Cultures were established on MS medium supplemented with BAP (1.0 mg/l) along with NAA (0.1 mg/l) and regular sub culturing was carried out in BAP (1.0 mg/l). Elongation of shoots was achieved in ½ MS medium devoid of plant growth regulators. Best rooting was observed in ½ MS supplemented with IBA (1.0 mg/l). the method of in vitro propagation of mature F1 hybrid reported in this paper will be helpful in retaining the hybrid vigour and mass clonal multiplication of heterotic hybrid combination which has the potential to produce three to five times more volume of wood than the parent species.
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