Results 21 to 30 of about 470 (172)

First automatic size measurements for the separation of dwarf birch and tree birch pollen in MIS 6 to MIS 1 records from Northern Germany. [PDF]

open access: yesEcol Evol
Using image recognition with a series of convolutional networks and machine learning, we automatically measure the size of fossil birch pollen from sediment samples. The measurements are useful for determining the presence of dwarf birches versus tree birches in the past.
Theuerkauf M   +5 more
europepmc   +2 more sources

Commodity risk assessment of debarked conifer wood chips fumigated with sulfuryl fluoride from the US. [PDF]

open access: yesEFSA J
Abstract The European Commission requested the EFSA Panel on Plant Health to deliver a risk assessment on the likelihood of pest freedom from regulated EU quarantine pests, with emphasis on Bursaphelenchus xylophilus and its vectors Monochamus spp. of debarked conifer wood chips fumigated with sulfuryl fluoride as proposed by the United States (US) and
EFSA Panel on Plant Health (PLH)   +32 more
europepmc   +2 more sources

Variability of in vitro germination of Picea omorika pollen [PDF]

open access: yesDendrobiology, 2012
Serbian spruce (Picea omorika /Panc./Purkyne) is a Balkan endemic and Tertiary relict, therefore it has an exceptional significance from the historical-geographical aspect as well as from the aspect of tree im- provement and biodiversity conservation. Pollen was collected from 24 trees in two consecutive years and an- alyzed once a month.
Branislava Ž. Batos   +1 more
openaire   +1 more source

Commodity risk assessment of Quercus petraea plants from the UK

open access: yesEFSA Journal, Volume 21, Issue 10, October 2023., 2023
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 Quercus petraea imported from the UK ...
EFSA Panel on Plant Health (PLH)   +29 more
wiley   +1 more source

Commodity risk assessment of Quercus robur plants from the UK

open access: yesEFSA Journal, Volume 21, Issue 10, October 2023., 2023
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 Quercus robur imported from the UK as:
EFSA Panel on Plant Health (PLH)   +29 more
wiley   +1 more source

Commodity risk assessment of Acer campestre plants from the UK

open access: yesEFSA Journal, Volume 21, Issue 7, July 2023., 2023
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 Acer campestre imported from the UK as:
EFSA Panel on Plant Health (PLH)   +30 more
wiley   +1 more source

Commodity risk assessment of Acer platanoides plants from the UK

open access: yesEFSA Journal, Volume 21, Issue 7, July 2023., 2023
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 Acer platanoides imported from the ...
EFSA Panel on Plant Health (PLH)   +30 more
wiley   +1 more source

Challenges and risks of Serbian spruce (Picea omorika [pančić] purk.) in the time of climate change – a literature review

open access: yesCentral European Forestry Journal, 2023
Serbian spruce (Picea omorika [Pančić] Purk.) is a Balkan endemic coniferous species, the expansion of which is restricted by limited knowledge. This literature review paper compiles findings from 176 scientific papers and presents a summary of research ...
Vacek Zdeněk, Vacek Stanislav
doaj   +1 more source

Commodity risk assessment of Acer pseudoplatanus plants from the UK

open access: yesEFSA Journal, Volume 21, Issue 7, July 2023., 2023
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 Acer pseudoplatanus imported from the ...
EFSA Panel on Plant Health (PLH)   +30 more
wiley   +1 more source

Prirodne populacije Pančićeve omorike u Republici Srpskoj (Bosna i Hercegovina)

open access: yesGlasnik Šumarskog Fakulteta Univerziteta u Banjoj Luci, 2020
Rasprostranjenost, brojnost i trendovi su među ključnim podacima potrebnim za definisanje stanja neke ugrožene vrste. Poslije 70 godina od saopštenja Pavla Fukareka (1951), u ovom radu se daje detaljan pregled trenutnog stanja omorike na području ...
Milan Mataruga, Đorđije Milanović
doaj   +5 more sources

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