Results 41 to 50 of about 240 (126)

Commodity risk assessment of Alnus cordata, Alnus glutinosa and Alnus incana plants from the UK

open access: yesEFSA Journal, Volume 23, Issue 1, January 2025.
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘high‐risk plants, plant products and other objects’. Taking into account the available scientific information, including the technical information provided by ...
EFSA Panel on Plant Health (PLH)   +36 more
wiley   +1 more source

Genetic variation and population structure in Fraser fir (Abies fraseri): a microsatellite assessment of young trees [PDF]

open access: yesCanadian Journal of Forest Research, 2008
The island-like populations of Fraser fir ( Abies fraseri (Pursh) Poir.) have been isolated since the end of the late-Wisconsinian glaciation on the highest peaks of the Southern Appalachian Mountains and therefore offer an opportunity to investigate the genetic dynamics of a long-fragmented forest tree species.
Kevin M. Potter   +3 more
openaire   +1 more source

Gibberellic acid inhibitors control height growth and cone production in Abies fraseri

open access: yesScandinavian Journal of Forest Research, 2016
Precocious cone production in Fraser fir (Abies fraseri) results in substantial economic losses for Christmas tree growers in the United States. Cone removal often represents the second highest labor expense, after shearing. Gibberellins (GAs) regulate both reproductive development and shoot elongation, and are used to enhance cone production in ...
Crain, Brent A., Cregg, Bert M.
openaire   +1 more source

Environmental determinants of bryophyte community change over time

open access: yesEcosphere, Volume 15, Issue 8, August 2024.
Abstract Environmental factors mediating community change over time have been well documented for vascular plants, but not for their non‐vascular relatives, bryophytes. Elevation is one variable that has been explored regarding bryophyte community change wherein as elevation increases, bryophyte communities increase in diversity and abundance, whereas ...
Eric Shershen   +2 more
wiley   +1 more source

Control and management of Phytophthora damage in forestry—A systematic mapping study

open access: yesForest Pathology, Volume 54, Issue 4, August 2024.
Abstract Plant pathogens in the genus Phytophthora are a severe threat to forest plantations, ecosystems and tree nurseries. Especially in forests and natural ecosystems, there is a lack of effective measures to control and manage these pathogens. In this study, we conducted a systematic mapping review to collate evidence regarding the control and ...
Noelia López‐García   +3 more
wiley   +1 more source

Commodity risk assessment of maple veneer sheets from Canada

open access: yesEFSA Journal, Volume 22, Issue 7, July 2024.
Abstract The European Commission requested the EFSA Panel on Plant Health to deliver a risk assessment on the likelihood of pest freedom from Union quarantine pests and pests subject to measures adopted pursuant to Article 30 of Regulation (EU) No 2016/2031 for the maple veneer sheets manufactured according to the process set out by Canada, with ...
EFSA Panel on Plant Health (PLH)   +29 more
wiley   +1 more source

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