Hoang Xuan Ty and Nguyen Duc Minh
Forest Science Institute of Vietnam
I. Introduction
For 50 years, the forests of Vietnam have been experiencing a severe spiraling down of both their resource and quality, leading to poor ecological conditions for forest tree growth and environmental disruption. Therefore, parallel with forest – restoration-orientated protection and enrichment planting, the establishment of new plantations has become a “must” in the forestry subsector, in which the choice of suitable forest tree species, especially those of prime and rare timber, has emerged as a vital task. For this, Tarrietia javanica Blume (vernacular Huynh) and Michelia mediocris Dandy (vernacular Gioi xanh), both well valued and productive indigenous timber species, these last 20 years have been tested in a number of provinces through enrichment planting trials. However, the extension of the technology used remained difficult, because of a lack of research and research findings on: site conditions, planting technics, seed supply and storage; in particular, the lack of information on seed storage and seedling production seems to have tied up many enthusiastic extension workers.
To overcome the stumbling blocks, the Forest Ecology and Environment Research Centre (below referred to as the Centre) carried out a research project on “The Physiological and Ecological Characters of Tarrietia javanica Blume (Huynh) and Michelia mediocris Dandy (Gioi xanh) to Develop Forest Plantation technology”.
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