scholarly journals Comparison of performance of whitewood (Endospermum medullosum L. S. Smith) provenances and families in Vanuatu

2005 ◽  
Vol 23 (1) ◽  
pp. 37 ◽  
Author(s):  
I V N Vutilolo ◽  
A P Tyagi ◽  
L A J Thomson ◽  
M Heads
Keyword(s):  
Genetic Resources ◽  
Breeding Programme ◽  
Wood Volume ◽  
Timber Quality ◽  
Diameter Increment ◽  
Shark Bay ◽  
Forest Genetic ◽  
Forest Genetic Resources ◽  
Volume Production ◽  
Half Sibling

This study reports a comparison of performance of four year-old whitewood (Endospermum medullosum L S Smith) provenances and families trials established by the Department of Forestry of Vanuatu and the South Pacific Regional Programme In Forest Genetic Resources project (SPRIG). Trees in the different open-pollinated, half-sibling families had mean heights ranging from 7.1 m to 10.2 m, dbh from 13.5 cm to 17.8 cm, wood volume from 0.07 to 0.14 m3 and survival from 54% to 91%. Seedlot GD11 from Shark Bay East Santo showed the superior mean height of 10.2 m followed by seedlot MT29 from Maewo and MS47 from Malel Central East Santo with 9.6 m. The shortest trees were in families JT35 (Forari, Efate) with 7.1 m, MT33 (Maewo) and JT30 (Forari, Efate) with 7.5 m. Trees in seedlots MS44 from Malel Central East Santo and MS32 from Palon East Santo had the biggest diameter increase(mean dbh of 17.8 cm) followed by seedlot GD11 Shark Bay East Santo and MS2 from Sara East Santo with 17.5 cm and MS55 from South East Santo with 17.4 cm. Seedlots with very low diameter increment were MT3 from Maewo and JT35 from Forari (mean dbh of 13.5 cm) followed by MT3 and MT4 from Central Pentecost with a mean dbh of 13.8 cm. Seedlots with superior wood volume production were MS2 from Sara East Santo (with mean of 0.15 m3 per tree) followed by seedlots MS32 Palon East Santo, GD11 Shark Bay East Santo, MS55 South East Santo with 0.14 m3 and MS3 Kole East Santo with 0.13 m3. The slowest growing seedlots were JT35 from Forari Efate and MT32 from Maewo with mean volume of 0.07 m3. Study reveals that there is a great potential among provenances and families for further improvement and to establish breeding programme to breed whitewood for higher quantity and better timber quality.

A Participatory Approach for Conservation of Forest Genetic Resources

2003 ◽  
pp. 63-71 ◽  
Author(s):  
Lambert G. Ouedraogo ◽  
Haoua Sary ◽  
Christiane S. Yameogo-Gamene ◽  
Oblé Neya
Keyword(s):  
Genetic Resources ◽  
Participatory Approach ◽  
Forest Genetic ◽  
Forest Genetic Resources

scholarly journals Conservation and directed utilization of forest genetic resources

2007 ◽  
pp. 7-21 ◽  
Author(s):  
Mirjana Sijacic-Nikolic ◽  
Jelena Milovanovic
Keyword(s):  
Genetic Diversity ◽  
Genetic Resources ◽  
Genetic Resource ◽  
Environmental Changes ◽  
Future Generations ◽  
Forest Trees ◽  
The Earth ◽  
Forest Genetic ◽  
Forest Genetic Resources ◽  
Defensive Mechanism

Forest genetic resources represent the genetic diversity contained in the thousands of species of forest trees on the earth. their conservation is a set of activities and strategies, which are performed in the aim of ensuring the continued existence, evolution and availability of these resources for the present and future generations. the aim of genetic resource management is the enhancement of conditions for the continual evolution of the species which is the defensive mechanism of the organisms in the struggle with environmental changes.

scholarly journals Forschung zur Vielfalt, vielfältige Forschung: Ziele und Wege der Forstgenetik | Research on diversity, diverse research: objectives and approaches in forest genetics

2001 ◽  
Vol 152 (5) ◽  
pp. 162-168 ◽  
Author(s):  
Reiner Finkeldey
Keyword(s):  
Genetic Resources ◽  
Genetic Information ◽  
Temporal Dynamics ◽  
Forest Tree ◽  
Gene Marker ◽  
Adaptive Potential ◽  
Forest Genetics ◽  
Marker Loci ◽  
Forest Genetic ◽  
Forest Genetic Resources

The genetic information about forest trees is not only of crucial importance for the yield of forestry production systems,but also for determining the evolutionary adaptive potential of tree populations. Thus, the stability of forest ecosystems depends on the sustainable management of forest genetic resources. In this context, tree breeding and conservation of forest genetic resources are mentioned as main applications of research in forest genetics. Genetic inventories are conducted in order to observe the spatial distribution of genetic information at gene marker loci. Such studies allow us to elucidate the evolutionary history of populations and, thus, to draw conclusions about their evolutionary adaptability. Results of a genetic inventory of oak (Quercus spp.) populations native to Switzerland are presented, and their significance for the characterization of genetic systems and adaptive potential is discussed. Future research into forest genetics should aim at improving our understanding of the relationship between variation at biochemical and molecular marker loci and adaptive processes in forest tree populations. The temporal dynamics of genetic structures of forest tree populations as a consequence of anthropogenic environmental change is another important topic of forest genetics in particular for the conservation of rare species.

scholarly journals Survey on the conservation and use of forest genetic resources in Latin America

2009 ◽  
Vol 18 (2) ◽  
pp. 132
Author(s):  
J. Salcedo ◽  
M. Baena ◽  
X. Scheldeman ◽  
B. Vinceti ◽  
L. Willemen
Keyword(s):  
Latin America ◽  
Genetic Resources ◽  
Forest Genetic ◽  
Forest Genetic Resources

scholarly journals Priorities for Conservation and Sustainable Use of Forest Genetic Resources in Four Mexican Pines

Forests ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 675
Author(s):  
Andrés Flores ◽  
Javier López-Upton ◽  
Cristobal D. Rullán-Silva ◽  
Adriana E. Olthoff ◽  
Ricardo Alía ◽  
...  
Keyword(s):  
Genetic Resources ◽  
Sustainable Use ◽  
Cost Effective ◽  
Genetic Conservation ◽  
Conservation Units ◽  
Current Conservation ◽  
Forest Reproductive Material ◽  
Forest Genetic ◽  
Forest Genetic Resources ◽  
Combined Strategy

The strategies for the conservation and sustainable use of forest genetic resources, which are essential for the future adaptation of forest species to changing environments, are also a source of valuable genetic resources for breeding and restoration activities. The first step to define and implement cost-effective strategies is to identify specific priority populations. Mexico, in spite of being characterized by high levels of tree species diversity, mostly lacks a combined strategy for the genetic conservation and use of forest genetic resources. The aims of this work are: (i) to identify areas for gene conservation, and (ii) to propose measures for the conservation and sustainable use of forest genetic resources of four pine species: Pinus greggii Engelm. ex Parl., Pinus oocarpa Schiede ex Schltdl., Pinus patula Schiede ex Schltdl. & Cham. and Pinus pseudostrobus Lindl. To do that, we use the existing information on the distribution, genetic variation and conservation and breeding efforts in Mexico. Overall, 51 areas for establishing genetic conservation units were prioritized and 6 genetic zones for the use of forest genetic resources in breeding and selection of forest reproductive material were identified. The current conservation efforts for the four priority Mexican pines should be improved to satisfy the needs of a national breeding and conservation network.

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