The development prospect of coppiced dalbergia plantation in Indonesia
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Dalbergia latifolia Roxb. is a premium wood traded in the international market as Rosewood, and currently included in the CITES Appendix II. In Indonesia, D. latifolia is suitable and popular to be intercropped within agroforestry system. However, the species is generally considered as too slow-growing to be preferred to timber plantation trees. Thus, promoting private, community and government plantations is necessary to support future timber stock and gene conservation. This study was aimed to examine the possibility of establishing coppiced D. latifolia plantation. This study involved observation and measurement in the field and nursery. Field observation and measurement were carried out both in a private and national forested land in West, Central and East Java of Indonesia, while propagation trials were conducted at a nursery in Bogor–West Java. Field observation indicated that certain population from West Java showed faster growth that in the 3-4-year- the trees reached 15-27 cm in DBH. Vegetative propagation trials showed that root cutting is more prospective that that of shoot cutting (sprouting ability >90%). Experiment on root growth from planting stocks originated from root cutting produced massive lateral roots (total root length 4 m - 8 m within six month). Small roots with 4 m – 5 m in length can be source for producing new individuals. Field observation also revealed that the stumps produced 3 - >20 sprouts that can further utilize as shoot cutting sources and among them (1-3 sprouts) would develop into new individual and take the role as new main stem replacing the previous harvested one. Thus, it is prospective to develop a coppiced plantation of D. latifolia which will be beneficial in term of ecology and economy. The slow-growing tree term previously accepted in general term may not be applied as at suitable habitat they may grow aggressively and categorize as fast growing with the diameter increment can achieve 4–7 cm/year.
Keywords: rosewood, plantation, propagation, regeneration potential, sprouts
ID: 3486358