Results 31 to 40 of about 397 (161)

Is There Synchronicity in Nitrogen Input and Output Fluxes at the Noland Divide Watershed, a Small N-Saturated Forested Catchment in the Great Smoky Mountains National Park?

The Scientific World Journal, 2001
High-elevation red spruce [Picea rubens Sarg.]-Fraser fir [Abies fraseri (Pursh.) Poir] forests in the Southern Appalachians currently receive large nitrogen (N) inputs via atmospheric deposition (30 kg N ha 1 year 1) but have limited N retention ...
H. Van Miegroet, I.F. Creed, N.S. Nicholas, D.G. Tarboton, K.L. Webster, J. Shubzda, B. Robinson, J. Smoot, D. W. Johnson, S. E. Lindberg, G. Lovett, S. Nodvin, S. Moore   +12 more
doaj   +1 more source

Regeneration responses to exogenous disturbance gradients in southern Appalachian Picea-Abies forests

, 2013
Because of the devastation caused by the combined impacts of the balsam woolly adelgid (Adelges piceae; BWA, a non-native insect) and chronic acid deposition, Picea-Abies (spruce-fir) forests are one of the most threatened vegetation communities in North
Stehn, Sarah E., Jose, Shibu, Jenkins, Michael A., Webster, Christopher R.   +3 more
core   +1 more source

Description of the five variants (mitotypes) detected in the intron 4 of the nad5 mtDNA gene of Abies balsamea. Abies fraseri and Abies lasiocarpa, two phylogenetically closely-related species to A. balsamea, were fixed for mitotype I and mitotype 2, respectively.

, 2015
* Poly, Polymorphic region;** numbers indicate nucleotide positions in the longest sequence obtained with nad5-4Ab primers (see Materials and Methods for more information).
Jean Beaulieu (717956), Benjamin Cinget (717954), Sébastien Gérardi (717955), Jean Bousquet (20909)   +3 more
core   +1 more source

Phytophthora Abies-fajokon (jegenyefenyő) [PDF]

, 2015
Körülbelül ötven faj tartozik a nemzetségbe, amelyek az északi mérsékelt övben oshonosak (http://www.discoverlife.org). Nagyon jelentos környezeti szerepük van eredeti élohelyükön.
Talgø, Venche, Chastagner, Gary
core   +1 more source

Impacts Of Needle Age, Tree Architecture, And Drought Stress On Photosynthetic Physiology Of Fraser Fir (Abies fraseri) Christmas Trees [PDF]

, 2022
The purpose of this study was to determine the impacts of drought stress and annual trimming on the growth, photosynthetic physiology, and crown architecture of Fraser fir (Abies fraseri) Christmas trees on a choose-and-cut farm in the Southern ...
NC DOCKS at Appalachian State University, Hull, Ashley Marie   +1 more
core  

Grafting Fraser Fir (Abies fraseri): Effect of Scion Origin (Crown Position and Branch Order) [PDF]

HortScience, 2011
Success and subsequent growth of fraser fir [ Abies fraseri (Pursh) Poir.] cleft grafts were studied in relation to origin and type of scion material in the tree crown. First- and second-order shoots (current-year) were collected from five zones in the crown, ranging from top to bottom, and ...
Haley Hibbert-Frey, John Frampton, Frank A. Blazich, Doug Hundley, L. Eric Hinesley   +4 more
openaire   +1 more source

International Biological Flora: Tsuga canadensis*

Journal of Ecology, Volume 113, Issue 10, Page 3037-3080, October 2025.
Eastern Hemlock is a long‐lived forest tree of eastern North America known for its deep shade and home given to many organisms. Despite surviving large‐scale clearing for agriculture when Europeans arrived, it returned to dominate when the land was abandoned in the mid 1800s.
Peter A. Thomas, David A. Orwig
wiley   +1 more source

Outbreak of Phytophthora abietivora in a Québec Forest Nursery: Emergence of a New Phytophthora Tree Pathogen?

Forest Pathology, Volume 55, Issue 5, October 2025.
ABSTRACT Tree nurseries play a key role in the Canadian economy and reforestation efforts, producing over 600 million seedlings annually. Despite rigorous management practices, nurseries are not exempt from pathogen outbreaks, which can be devastating on many levels.
Guillaume Charron, Marie‐Krystel Gauthier, Valérie Aucoin, Philippe Tanguay   +3 more
wiley   +1 more source

Determinants of the Southern Range Limit of an Infamous North American Forest Defoliator

Journal of Biogeography, Volume 52, Issue 7, July 2025.
ABSTRACT Aim Predicting climate driven species range shifts requires knowledge of mechanisms limiting species fitness under various climatic conditions. The traditional approach of modelling ranges of herbivorous insects by fitting environmental niche models to occurrence records is generally incapable of differentiating direct effects of climate on ...
Andrew M. Liebhold, Eugene Luzader, Jacques Régnière   +2 more
wiley   +1 more source

Embriogênese somática em Araucaria angustifolia (Bert.) O. Kuntze: pontos de controle e aspectos do metabolismo / [PDF]

, 2000
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias.Durante grande parte do século XX a Araucaria angustifolia (Bert.) O.
Santos, André Luis Wendt dos
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