Nguyen Hoang Nghia
Le Dinh Kha
INTRODUCTION
Eucalyptus is one of the main planting species in Vietnam, not only for concentrated plantations, but also for scattered planting and planting in farms. Up to 1989, many results have been reported by our Institute and other organizations, however, since 1990, Eucalyptus planting and trials have faced new demands and problems such as fungus disease, productivity of plantations, requirements for export etc. This report will provide the latest results, give new orientations and heights in order to overcome the problems so that Eucalyptus will be planted in the correct area.
MATERIAL AND METHOD
From 1980 up to now, 137 provenances of 15 main Eucalyptus species have used in trials in Vietnam, however, it was noted that 50 Eucalyptus species were tried before 1970. Since 1984, more than 20 trials have been carried out over the whole country; most of these trials used randomized complete block design with 3-4 replications and 49 trees/plot, except for some trials having fewer trees per plot and some pilot plantations having one replication.
The data collected are H. D1.3 (or ground level diameter at a young age), survival, disease situation, flowing and fruit setting. A computer was used for analysis of variance.
Latest news
- Project: Study on integrated management of insect pests and diseases on Docynia indica in northern Vietnam
- Project: Study on integrated pest management of major leaf insect pests and stem borer beetles in Acacia hybrid, A. mangium and A. auriculiformis in Vietnam
- Project: Research and develop an integrated management program for control of cinnamon pests in some main cinnamon growing areas (Northern mountainous region and Quang Nam province)
- Project: Pilot plantation and completion of planting techniques of technologically advanced germplasm of Acacia auriculiformis (AA42, AA53, AA56, AA92, AA95) for sawlog in the southeast and south central.
- Project "Research on selection of varieties and intensive afforestation techniques of Prunus arborea (Blume) Kalkman for providing lager timber in the Northeast and Northwest regions, Vietnam"
Oldest news
- preliminary results of provenance trial, breeding and vegetation propagation for casuariana equisetifolia
- species and provenance trials of acacias
- selection of manglietia glauca trees with fast growth and good form in the Central area of the North (During 1983 - 1985)
- study on effect of some growth stimulators on propagation of dendrocalamus by branch cutting (1976 - 1977)
- study on thinning techniques of manglietia glauca plantations in order to increase increment (1971 - 1976)
