Doan Van Nhung
Nguyen Huu Dong
Nguyen Quang Tang
INTRODUCTION
The yearly requirement for Styrax tonkinensis seeds is very high. In order to meet this requirement, on one hand, seed stands must be established, which can meet requirements in productivity and stable yield so that seed collection can be implemented concentratedly in one area and suitable collecting techniques can also be applied. On the other hand, suitable storing techniques must be used to maintain germination ability for long periods to preserve seeds for other years (not seed years).
RESEARCH CONTENT AND METHODS
The research subject concentrated on the following investigations:
* Tools and techniques for seed collection to ensure that the mother trees will not be hurt.(damaged)
* Time for seed collection and standards which determine ripening degrees of fruits to ensure quality of seeds.
* Seed storing techniques for long periods.
* Techniques for establishment of seed stands.
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 investigations of some micro-climatic factors in mixed, broadleaved forest at nuitien (huulung district, langson province) (1974-1976)
- study on regeneration techniques for poor, depleted forest at huulung by using prunus abborea andphoebe species (1972 - 1977)
- trials of planting techniques, forest enrichment at song hieu area (nghe an province) by using aglaia sp., michelia sp., chukrasia tabularis,manglietia glauca and ormosia balansae ( 1976-1977)
- study on techniques to enrich poor, depleted forest at cauhai by additional planting (1974 - 1977)
- experiment on planting cassia siamea and erythrophloeum fordii to improve degraded forests which contain neohouzeaua dullosa, bamboos, climbing plants and shrubs at huulung (1974-1977)
