CLONING AND SEQUENCING OF ECHB1 GENE RELATED TO MECHANISM OF INCREASING FIBER LENGTH IN EUCALYPTUS SPECIES Tran Duc Vuong1, Ohtani Misato2, Tran Ho Quang1, Taku Demura2. 1Vietnamese Acacdemy of Forest Sciences  2RIKEN Biomass Engeneering Program, Yokohama, Kanagawa 230-0045, Japan SUMMARY In this study, we cloned and sequenced a full length cDNA encoding EcHB1gene from Eucalyptus grandis. The EcHB1 gene is 759bp in length and it encodes a 252 amino acid protein. Alignment of the … [Read more...]

STUDY OF THE GENETIC DIVERSITY OF DIPTEROCARPUS ALATUS ROXB. BY USING RAPD MARKERS Nguyen Thi Hai Hong, Tran Nhat Nam, Nguyen Thi Le Ha Forest Science Sub-Institute of South Vietnam SUMMARY Assessment of genetic diversity for 41 leaf samples Dipterocarpus alatus Roxb. that were collected from 10 provinces of 3 forest ecological regions in Vietnam by using RAPD markers with 18 random primers showed that these samples were highly genetic diversity. Genetic similarity coefficients  … [Read more...]

NURSERY MANAGEMENT AND CULTURE OF BROWNLOWIA TABULARIS Tran Huu Bien1 and Vu Thi Lan2 1  Forest Sciences Institute of Vietnam 2  University of Forestry, Dong Nai Campus.    SUMMARY Brownlowia tabularis is a valued native tree species used for furniture and for decoration.  Planting stock is normally raised from seed in the nursery and this paper describes some of the processes for raising suitable planting material. The seeds of B. tabularis are only viable for a short … [Read more...]

Field performance of several provenances of Michelia baillonii and Betula alnoides for sawlog production in Quang Ninh and Son La Provinces   Nguyen Hoang Nghia, Pham Quang Thu, Le Van Binh, Vu Van Dinh and Nguyen Minh Chi Forest Science Institute of Vietnam SUMMARY Currently Vietnam’s native forests and plantations cannot meet the demand for sawlogs, requiring significant volumes logs to be imported to meet that demand.  Vietnam aims to increase the local supply of sawlogs in a … [Read more...]

POTENTIAL OF  MELALEUCA CAJUPUTIAS A RAW  MATERIAL FOR MDF PRODUCTION Bui Duy Ngoc Forest Products Processing Research Division Forest Science Institute of Vietnam SUMMARY Substantial plantations of Melaleuca cajuputi have been established in the Cuu Long delta, Vietnam.  However, to date, these plantations have not been utilized to their potential capacity.  One potential use of Melaleuca cajuputi is as a raw material for MDF (medium density fibre board) production. An analysis of … [Read more...]

DIVERSITY of MEDICINAL PLANTS  IN MUONG TE DISTRICT, LAI CHAU PROVINE Hoang Thanh Son, Nguyen Hoang Nghia, Pham Quang Tuyen, Trinh Ngoc Bon Forest Sciene Institute of Vietnam Summary Total number of medicinal plant species found during the surveys conducted in Muong Te district, Lai Chau province is 213 species of 169 genera and 83 families. Among these species, there are 206 species (96,71%) of Magnoliophyta, 6 species (2,82%) of Polypodiophyta and 1 species (0.47%) of … [Read more...]

1. STUDY ON SILVIC CHARACTERISTICS OF SOME MAIN FOREST ECOSYSTEMS OF VIETNAM  Tran Van Con Forest Science Instititute of Vietnam SUMMARY Successful implementation of sustainable forest management in the operational level relies on the understanding of process which occurs in natural forest ecosystems and their response to intervention. The natural forests in Vietnam have been managed for over four decades but the knowledge of such process is still limited due to a lack of data derived from … [Read more...]

1. STUDY ON CUTTING PROPAGATION OF DIPTEROCARPUS ALATUS Nguyen Thi Hai Hong, Tran Nhat Nam, Vo Trung Kien Forest Science Sub-Institute of South Vietnam SUMMARY Dipterocarpus alatus is an indigenous species for large timber with high economic value, dominated in the tropical rain forests.  This species was defined a difficult-to-root species as cuttings were harvested from mature trees. Therefore, research on cutting propagation of Dipterocarpus alatus has been conducted. The … [Read more...]

1. RESULTS OF CAMMELIA SASANQUA SELECTION PLUS TREE AND CLONAL TEST BY THE METHOD OF SHIFTED-CROWN GRAFTING IN NGHIA DAN – NGHE AN Hoang Van Thang Silviculture Techniques Research Division Forest Science Institute of Vietnam   SUMMARY   After 3 years of monitoring and selecting, five plus trees were selected at Nghia Loc Commune - Nghia Dan District– Nghe An Province. The plus trees gained yield and oil content higher 20% and 15% respectively than those of the average value … [Read more...]