Abstract
Pooti ( Hopea gregaria Slooten) is a tree species of the Dipterocarpaceae . It is an endemic tree in Southeast Sulawesi and its existence is endangered. Flowering and fruiting periods of pooti is certainly unknown and do not produce fruit s regular r y which cause s problem in generative propagation. One of the factors that influence the success of shoot cuttings is the presence of growth regulating substance, including the use of R ootone-F. The purpose of this study was to obtain the right dosage of growth regulators for the successful growth of pooti shoot cuttings . Design of the research was completely randomized design consisting of 8 concentrations of R ootone-F, i.e. (a) 0 ppm, (b) 50 ppm, (c) 75 ppm, (d) 100 ppm, (e) 125 ppm (f) 150 ppm, (g) 175 ppm and (h) 200 ppm. The result showed that Rootone-F treatment had no t significant effect on all observed variables except for the number of secondary roots. Application of 200 ppm Rootone-F had significantly increased in secondary roots number of pooti shoot cuttings. Pooti plants are easily propagated by shoot cuttings without any treatment of Rootone-F .
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