Nguyen Hoang Nghia, Pham Quang Thu, Nguyen Van ChienForest Science Institute of Vietnam Pathogens usually found on eucalypts are mostly fungi such as Cryptosporiopsis eucalypti, Mycosphaerella marksii, Coniella fragariae, Phaeophleospora epicocoides, Phaeophleospora destructans, Cryphonectria cubensis, Coniothyrium zuluence and a bacterium Ralstonia solanacearum. The percentage and level of damage generally ranges from low to average depending on provenances and site conditions. In … [Read more...]
Selection of Eucalypt and Acacia clones for disease resistance and high productivity, period 2001-2005
August 17, 2010 by
Integral Prọection Models for trees: a new paramaterization method and a validation of model output
August 2, 2010 by
Pieter A. Zuidema1,4,*, Eelke Jongejans2, Pham D. Chien1,3,4, Heinjo J. During1 and Feike Schieving1 1. Matrix models are popular tools for plant demographic studies, but their application tolong-lived, slow-growing species is hampered by the fact that (i) model output is highly sensitive tocategory width and (ii) growth variation between individuals can only be partially accounted for. IntegralProjection Models (IPMs) – an extension of matrix models – offer a solution to these … [Read more...]
Seedling Production of Native Tree Species
July 9, 2010 by
Objective Develop seedling production techniques of native tree species including vegetative propagation techniques and useful techniques for the practical use of the microorganisms to stimulate the growth of the seedlings in nursery. Furthermore, establish and create foundation for native species seedling production, which will include seed orchard of native tree species. The techniques for seedling production of native tree species will be transferred to farmers through … [Read more...]
Melaleuca Plantation Model
July 9, 2010 by
Objective To establish of Melaleuca plantations in seasonally flooded land to protect and preserve plantations of native tree species, and to develop guidelines on planting Melaleuca on seasonally flooded land applicable in the watershed areas. Experiment site Hoa Binh watershed areas, Hoa Binh province Contents The contents of the experimental models are summarized in the following table. Proposed models for establishment of … [Read more...]
Illustrated pictures of thinning Model
July 9, 2010 by
This picture shows the situation before thinning of Acacia. This picture shows the growth meaurement of native trees after thinning of Acacia … [Read more...]
Acacia thinning models
July 9, 2010 by
Objective To identify suitable thinning intensity of nurse trees for enhancing optimal growth of various native tree species planted in mixed plantation and to study effects of thinning intensity on the litter fall and nutrient return. Experiment site CauHaiSilvicuturalExperimentResearchCenter- Phu Tho Province. Contents The plantations were established in 1997, 1998 and 2001 in Silvicutural Experiment Research Center, Doan Hung district, Phu … [Read more...]
Illustrated pictures
July 9, 2010 by
Planting area in bare land Erythrophloeum fordii one year after planting Melia azedarach developed from a seed sowed directly in bare land Seed trap surveying seed production in natural stand … [Read more...]
July 9, 2010 by
Objective Develop sets of silvicultural techniques for natural forest rehabilitation, which can be applied under 661 Program (Rehabilitation program of Vietnamgovernment). Experiment site Experiment area locates in 3 communes in Hoa Binh dam (Vay Nua commune in Da Bac district, Binh Thanh and Thung Nai commune in Cao Phong district). Contents The contents of the experiments are summarized in the following table. Experimental … [Read more...]
Inllustrated Pictures of OFTs activities
July 9, 2010 by
Baseline survey Participatory rural appraisal (PRA) Study tour Land preparation for enrichment planting in community forest … [Read more...]
Activities of OFTs
July 9, 2010 by
Objectives An on-farm trial (OFT) is generally defined as an indispensable tool for developing and validating technology applied by local people (farmers). In the RENFODA Project, the OFT aims at evaluating the biological, technical, socio-economic, institutional, policy-related feasibility of improved technology on farmers’ fields, and making recommendations to the 661 Programme. In detail, the OFT is i) to assess the problems and constraints of the 661 Program at the … [Read more...]
