tailieunhanh - Review of the Performance and Suitability of Pinus caribaea in Vietnam

Pinus caribaea was first planted in Vietnam in 1963. Since then, this species has been evaluated on potential sites throughout Vietnam. As part of the CARD project 033/05VIE, numerous trials involving P. caribaea were examined and related experiments have been remeasured in early 2006. This report summarizes the performance of P. caribaea in the test was established in 1976 by the Forest Research Center in Phu Tho and Research Center improvement of forest trees in Hanoi. | Review of the Performance and Suitability of Pinus caribaea in Vietnam Mark J. Dieters1 Ha Huy Thinh2 Phan Thanh Huong2 and Huynh Duc Nhan3 October 2006 Report prepared for CARD project 033 05VIE Field evaluation and advanced vegetative mass-propagation technology for scaling up high-value plantations of Pinus caribaea and related hybrids in Vietnam. Project Output Summary Pinus caribaea was first planted in Vietnam in 1963. Since that time this species has been evaluated on potential sites throughout Vietnam. As part of CARD project 033 05VIE many of the trials involving P. caribaea were inspected and relevant trials were remeasured in early 2006. This report summarizes the performance of P. caribaea in trials established since 1976 by the Forest Research Centre in Phu Tho and the Research Centre for Forest Tree Improvement in Hanoi. Summary data collated from various sources and newly collected data were analysed in a manner which would allow direct comparison to previous trial results. Data up to 25 years after planting are presented from a total of 17 trials planted on sites in the four major biogeographic regions of Vietnam that are most promising for the establishment pine plantations - northern central central highlands and southern Vietnam. These trial results clearly demonstrate the superior growth capacity of P. caribaea over P. kesiya P. merkusii and P. massoniana. P. caribaea var. hondurensis Pch demonstrated great adaptability to a wide range of sites from northern to southern Vietnam with relatively little provenance variation observed amongst those provenances evaluated. However it appears that the provenances of var. hondurensis tested in Vietnam are likely to have been selected based on results in international provenance trials all tested provenances ranked well in the Oxford and or CAMCORE series of provenance trials. Only a limited sample of P. caribaea derived from the Bahamas . P. caribaea var. bahamensis Pcb was evaluated however in .

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