Results 31 to 40 of about 9,971 (163)

Morpho-anatomical characteristics and content of nutritive macro elements in needles of fir and spruce and their varieties in Serbia [PDF]

Archives of Biological Sciences, 2013
The aim of the study is to establish, based on the morphological characteristics of shoots and morpho-anatomical characteristics of needles as well as the content of micro-elements in needles, whether there are differences between Pyramidal Fir (
Ratknić M., Miletić Z., Nikolić Biljana   +2 more
doaj   +1 more source

Glacial refugia, postglacial dynamics, and hybrid zones of Pinaceae in Eurasia captured from sedimentary ancient DNA

Ecosphere
Boreal forests cover nearly one‐third of global forest area. Glacial cycles have shaped the distribution and connectivity of modern Pinaceae genera, yet species‐level refugia, postglacial migrations, and hybridization patterns remain unclear due to ...
Stefano Meucci, Kathleen R. Stoof‐Leichsenring, Yanrong Zhang, Andrei A. Andreev, Konstantin V. Krutovsky, Boris K. Biskaborn, Inger G. Alsos, Laura Parducci, Kevin Nota, Sandra Garcés‐Pastor, Petr Kuneš, Walter Finsinger, Eleonora Cagliero, Daniel Vondrák, Jaroslav Kukla, Darrell Kaufman, Barbara Wohlfarth, Heikki Seppä, Ulrike Herzschuh   +18 more
doaj   +1 more source

Tree-ring data set for dendroclimatic reconstructions and dendrochronological dating in European Russia

Scientific Data, 2022
Measurement(s) growth ring Technology Type(s) Measurement Device Factor Type(s) location Sample Characteristic - Organism Pinus sylvestris • Picea abies • Quercus robur • Larix sibirica • Fagus orientalis Sample Characteristic - Environment woodland area
Olga Solomina, Vladimir Matskovsky, Ekaterina Dolgova, Veronika Kuznetsova, Nadezhda Semenyak, Tatiana Bebchuk, Vladimir Mikhalenko, Alexey Karpukhin, Bulat Khasanov   +8 more
doaj   +1 more source

Natural forests health assessment in ‘Parangalitsa’ Reserve, Rila Mountain [PDF]

Silva Balcanica
Health status assessment and monitoring in natural forest stands were conducted in 2024 in the ‘Parangalitsa’ Reserve (Rila Mountain, Southwest Bulgaria).
Margarita Georgieva, Georgi Georgiev, Miglena Zhiyanski   +2 more
doaj   +3 more sources

Factors of selection and quality of wood used for woodcraft in medieval Polish strongholds and early urban centres

Acta Palaeobotanica, 2018
This paper discusses various aspects of the use of wood for crafts in the Middle Ages, based on xylological analyses of 4211 crafted items of everyday use discovered at 62 archaeological sites in Poland.
KATARZYNA CYWA, AGNIESZKA WACNIK, MARIA LITYŃSKA-ZAJĄC   +2 more
doaj   +1 more source

Simultaneous Real-Time Measurement of Isoprene and 2-Methyl-3-Buten-2-ol Emissions From Trees Using SIFT-MS

Frontiers in Plant Science, 2020
The C5 hemiterpenes isoprene and 2-methyl-3-buten-2-ol (MBO) are important biogenic volatiles emitted from terrestrial vegetation. Isoprene is emitted from many plant groups, especially trees such as Populus, while emission of MBO is restricted to ...
Ann-Sophie Lehnert, Ann-Sophie Lehnert, Erica Perreca, Jonathan Gershenzon, Georg Pohnert, Susan E. Trumbore   +5 more
doaj   +1 more source

Holocene vegetation history of the Western Rhodope Mountains (South Bulgaria): the paleoecological record of peat bog Beliya Kanton

Acta Palaeobotanica, 2023
Pollen and plant macrofossil analyses supported with radiocarbon dating were conducted on a Holocene core from the peat bog Beliya Kanton (1547 m a.s.l.) located in the Western Rhodope Mountains (South Bulgaria).
Elena Marinova, Maria Lazarova, Dimiter Ivanov, Spassimir Tonkov   +3 more
doaj   +1 more source

Experimental Analysis of Pretensioned CLT-Glulam T-Section Beams

Advances in Materials Science and Engineering, 2018
The bending behavior of T-section beams composed of a glulam web and an upper cross-laminated timber flange was studied. The influence of two fundamental factors on the bending strength and stiffness was considered: the wood species used for the webs and
J. Estévez-Cimadevila, F. Suárez-Riestra, D. Otero-Chans, E. Martín-Gutiérrez   +3 more
doaj   +1 more source

Preliminary results on allozyme diversity and differentiation of Norway spruce (Picea abies (L.) Karst.) in Poland based on plus tree investigations

Acta Societatis Botanicorum Poloniae, 2014
Genetic diversity and genetic differentiation among Polish populations of Norway spruce (Picea abies (L.) Karst.) were studied analyzing allozyme variation at 24 loci.
Andrzej Lewandowski, Jarosław Burczyk, Władysław Chałupka   +2 more
doaj   +1 more source

A COMPARISON OF THE EMBRYOGENY OF PICEA AND ABIES

, 1942
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source