Results 41 to 50 of about 1,412 (171)

Arthopyrenia betulicola (Arthopyreniaceae, Dothidiomycetes), an Unusual New Lichenized Fungus From High Elevations of the Southern Appalachian Mountains [PDF]

open access: yes, 2013
The crustose pyrenolichen Arthopyrenia betulicola is described as new to science based on collections from high elevations of Great Smoky Mountains National Park in eastern North America.
Harris, Richard C   +2 more
core   +3 more sources

Commodity risk assessment of Berberis thunbergii plants from the UK

open access: yesEFSA Journal, Volume 23, Issue 6, June 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

An ecological study of the heath balds of the Great Smoky mountains [PDF]

open access: yes, 1930
The inhabitants of the Great Smoky mountains usually refer to the heath communities under consideration as slicks or balds. The former name is derived from the smooth appearance they present on the ridges and mountain tops when viewed from a distance
Cain, Stanley A.
core   +1 more source

Effect of Leaf Water Potential on Internal Humidity and CO2 Dissolution : Reverse Transpiration and Improved Water Use Efficiency under Negative Pressure [PDF]

open access: yes, 2017
The pull of water from the soil to the leaves causes water in the transpiration stream to be under negative pressure decreasing the water potential below zero.
Grönholm, Tiia   +6 more
core   +1 more source

Commodity risk assessment of Alnus cordata and Alnus glutinosa specimen trees from the UK

open access: yesEFSA Journal, Volume 23, Issue 4, April 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’. This Scientific Opinion covers the plant health risks posed by the following commodities: Alnus cordata and
EFSA Panel on Plant Health (PLH)   +35 more
wiley   +1 more source

Ruotsinkylä forskningsområde [PDF]

open access: yes, 1998
taiteltu ...
Turunen, Anne
core  

Commodity risk assessment of Populus alba, Populus nigra and Populus tremula plants from the UK

open access: yesEFSA Journal, Volume 23, Issue 3, March 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’. This Scientific Opinion covers plant health risks posed by plants of Populus alba, Populus nigra and ...
EFSA Panel on Plant Health (PLH)   +32 more
wiley   +1 more source

Comparative analysis of structures of essential oils of some kind of tree species abies [PDF]

open access: yes, 2013
Conditions of the chromatography analysis of essential oils providing an exit of all components with the contents over 0.01% are selected up. Essential oil from five kinds of the fir growing in identical climatic and soil environments is received by the ...
Klimchik, G. Ya.   +2 more
core  

The Siricidae (Hymenoptera: Symphyta) of Florida [PDF]

open access: yes, 2013
The six species of Siricidae (Hymenoptera: Symphyta) occurring in Florida and one species of regulatory concern introduced to North America are reviewed.
Leavengood, John M., Jr.   +1 more
core   +3 more sources

Multiple Phytophthora species associated with declining wild olive trees in Sardinia, Italy

open access: yesPlant Pathology, Volume 74, Issue 2, Page 465-475, February 2025.
This study provides new insights into the role of multiple Phytophthora species associated with widespread and severe decline of wild olive trees in Sardinia (Italy). Abstract Wild olive represents one of the most iconic woody plants in the Mediterranean Basin.
Antonio Deidda   +5 more
wiley   +1 more source

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