Results 51 to 60 of about 1,424 (167)

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

Сравнительный анализ составов эфирных масел некоторых интродуцированных видов деревьев рода Abies [PDF]

open access: yes, 2013
Подобраны условия хроматографического анализа эфирных масел, обеспечивающие выход всех компонентов с содержанием свыше 0,01%. Методом гидродистилляции получены эфирные масла различных видов пихты, произрастающих в одинаковых климатических и природных ...
Климчик, Геннадий Яковлевич   +3 more
core  

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

Триглицериды масел семян некоторых хвойных растений [PDF]

open access: yes, 2007
В работе методом высокоэффективной жидкостной хроматографии с рефрактометрическим детектированием исследован триглицеридный и рассчитан жирнокислотный состав масел семян некоторых растений семейства PinaceaeyesБелгородский государственный ...
Дейнека, В. И.   +3 more
core   +2 more sources

Growth, Biomass, and Nitrogen Use Efficiency of Containerized Fraser Fir (Abies fraseri) as Related to Irrigation and Nitrogen Fertilization [PDF]

open access: yesHortScience, 2010
Growth and nutrient uptake of containerized fraser fir (Abies fraseri) seedlings in response to irrigation and fertilization was investigated for 2 years in a greenhouse experiment. Height and stem diameter growth increased 12% to 35% and 4% to 32%, respectively, with increased irrigation. There was an inverse relationship between irrigation and foliar
Pascal Nzokou, Bert M. Cregg
openaire   +1 more source

Optimization of seasonality and mother plant nutrition for vegetative propagation of Pinus pinaster Ait [PDF]

open access: yes, 2014
Due to the high economic importance of Pinus pinaster Ait., there is considerable interest in developing, improving and extending the use of its families for mass clonal propagation and in breeding programmes.
Alía, Ricardo   +6 more
core  

Uncertainty in multispectral lidar signals caused by incidence angle effects [PDF]

open access: yes, 2018
Multispectral terrestrial laser scanning (TLS) is an emerging technology. Several manufacturers already offer commercial dual or three wavelength airborne laser scanners, while multispectral TLS is still carried out mainly with research instruments. Many
Hakala, Teemu   +4 more
core   +2 more sources

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

Armored Scale (Hemiptera: Diaspididae) Pests onAbies fraseri(Pinaceae) Christmas Trees Imported into Florida [PDF]

open access: yesFlorida Entomologist, 2016
Summary Adventive and potentially pestiferous species are a constant threat to the agriculture of Florida. Fiorinia externa Ferris (Hemiptera: Diaspididae), the elongate hemlock scale, is a recent but persistently intercepted pest of Fraser fir and related species grown out-of-state and imported annually into Florida as cut Christmas trees.
openaire   +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

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