Soil analysis for both Eastern and Carolina hemlock to better understand the ecology of both species has been accomplished. We have developed methods to inoculate fir seedlings and grafts with BWA.
Analysis of gene expression changes in Fraser fir in response to BWA or Pc requires background information on the genes expressed in Fraser fir during normal growth and during disease.
Analysis of gene expression changes in Fraser fir in response to either BWA or Pc requires background information on the genes expressed in Fraser fir during normal growth and during a disease response.
Impacts This work collectively provides insight into key components of the souuthern Appalachian forests. The effect of prune location on new shoot growth and subsequent rooting ability for containerized northern red oak seedling stock plants.
Results indicate that populations along the eastern periphery and in the Appalachian Mountains exhibit higher levels of isozyme variation than compared to those along the western periphery of the species range.
Seed was collected from 6 mother trees in one provenance of Carolina hemlock and 69 mother trees in 14 provenances of Eastern hemlock. Information generated by this work has reached many forestry scientists through publications and presentations, and users groups in the southern Appalachians intersted in Fraser fir and hemlocks as species threatened by the exotic invasive BWA and HWA pests.
Experiments to measure differences in gene expression due to BWA infestation of Fraser fir are in progress, and analysis of these experiments should be completed in Factors affecting graft success and early growth of Fraser fir.
Explorations for potential Eastern hemlock seed collection sites in June and July revealed that there was very little cone production in the southeastern US in Determine new ways to promote the growth of the ecologically critical and difficult to regenerate but highly valued northern red oak in mixed species forests through enrichment planting approaches.
Genetic structure and diversity studies have been completed for both hemlock species and results are being utilized to refine continued seed collection strategies and management of planted ex situ conservation banks.
They are home to critically important populations of diverse plants and animals, tourism and forest products industries, and represent an ecologically, economically and culturally critical component of the eastern U. Scion from surviving mature Fraser fir has been grafted, but is growing slowly, so available material is not sufficient for testing the degree of genetic resistance to balsam woolly adelgid BWA.
Still, some seed was collected for the establishment ex situ conservation areas.
Experiments to measure differences in gene expression due to BWA infestation of Fraser fir are in progress. September 7, Scientists Try to Save Hemlocks. Using a bud volume index with the top-stop nipper to control leader growth of Fraser Fir Christmas trees. Results of Czech-American cooperation in interspecific fir hybridizaiton in and Have continued work on the genetics of the criticaly important and threatened eastern hemlock in mixed species forests throughout the southern Appalachians through genotype sampling and ex-situ conservation of germplasm.TERM Fall '13 TAGS Introduced species, Forest, Gypsy moth, Tsuga canadensis, Hemlock woolly adelgid Click to edit the document details (Reading 12) The Nature and Significance of Polar Bear Conservation Hunting in the Canadian Arctic.p York University ENVS - Fall (Reading 12) The Nature.
Adelges piceae, commonly known as the balsam woolly adelgid/aphid, exists by means of a parasitic relationship with specific trees native to the United States and Canada. The insect is a damaging factor that must be dealt with before it claims victims our coniferous forests and ecosystems can't live without.
60 Years of Research and Demonstration in Maine, GTR-NRS-P The CooperaTive ForesTry researCh UniT. CommerCial Thinning researCh neTwork: 9. Free insect papers, essays, and research papers. The Benefits and Risks to Genetically Modified Corn - Introduction. ecological & economic integrity of southern forest ecosystems- stand dynamics, invasive pests & genetic determinants of keystone trees.
ABSTRACTS OF TECHNICAL PAPERS Management of balsam fir stands in Newfoundland is com-plicatedby the balsam woolly adelgid (BWA), Adelges piceae (Ratz.).
Presently, foresters do not have enough informa-tion concerning BWA biology and its impact to avoid losses.Download