Results 11 to 20 of about 23,679 (205)

Forest health, heart rot disease, and their impact on the source of carbon-based greenhouse gas fluxes. [PDF]

New Phytol
Summary Forest health is critical for sustaining ecosystem services like carbon sequestration. Heart rot, a widespread disease in upland northern hardwood forests, may affect greenhouse gas (CO2 and CH4) fluxes, but its impacts remain poorly measured. Using non‐destructive tomography and direct gas flux measurements, we quantified the effects of heart ...
Senevirathne CK, Huff A, Datta D, Swenson NG, Rocha AV.   +4 more
europepmc   +2 more sources

A Scots pine 4-coumarate:CoA ligase with high cinnamic acid affinity is the primary candidate for pinosylvin biosynthesis. [PDF]

Plant J
SUMMARY Pinosylvin and its derivatives are defense‐related stilbenoids that contribute to pathogen and decay resistance of Scots pine (Pinus sylvestris L.) heartwood. While most enzymes in the pinosylvin biosynthesis pathway in Scots pine have been identified, the enzyme responsible for activating cinnamic acid to cinnamoyl‐CoA, an essential precursor ...
Taniwan S, Ndah R, Lim KJ, Teeri TH, Paasela T.   +4 more
europepmc   +2 more sources

Beyond species means - the intraspecific contribution to global wood density variation. [PDF]

New Phytol
Summary Wood density is central for estimating vegetation carbon storage and a plant functional trait of great ecological and evolutionary importance. However, the global extent of wood density variation is unclear, especially at the intraspecific level. We assembled the most comprehensive wood density collection to date, including 109 626 records from
Fischer FJ, Chave J, Zanne A, Jucker T, Fajardo A, Fayolle A, de Lima RAF, Vieilledent G, Beeckman H, Hubau W, De Mil T, Wallenus D, Aldana AM, Alvarez-Dávila E, Alves LF, Apgaua DMG, Arcanjo F, Bastin JF, Bilous A, Birnbaum P, Blyshchyk V, Borah J, Boukili V, Camarero JJ, Casas L, Cazzolla Gatti R, Chambers JQ, Fabiano EC, Choat B, Conti G, Cornwell W, Dar JA, Das AK, Dobler M, Dougabka D, Edwards DP, Evans R, Falster D, Fearnside P, Flores O, Fyllas N, Gérard J, Goodman RC, Guibal D, Henao-Diaz LF, Hervé V, Hietz P, Homeier J, Ibanez T, Ilic J, Jansen S, Kalita RM, Kenzo T, Kindermann L, Kothandaraman S, Kotowska M, Kubota Y, Langbour P, Lawson J, de Lima ALA, Link RM, Linstädter A, López R, Macinnis-Ng C, Magnago LFS, Martin AR, Matheny AM, McCarthy JK, Miller RB, Nath AJ, Nelson BW, Njana M, Nogueira EM, Oliveira A, Oliveira R, Olson M, Onoda Y, Paul K, Piotto D, Radtke P, Razafindratsima O, Ramananantoandro T, Read J, Richardson S, de la Riva EG, Rodríguez-Reyes O, Rolim SG, Rolo V, Rosell JA, Salguero-Gómez R, Santini NS, Schuldt B, Schwendenmann L, Sellin A, Staples T, Stevenson PR, Sundarapandian S, van der Sande MT, Thibaut B, Tng DYP, Torezan JMD, Villanueva B, Weiskittel A, Wells J, Wright SJ, Zieminska K.   +105 more
europepmc   +3 more sources

Physical properties of four ring-porous hardwood species: Influence of wood rays on tangential and radial wood shrinkage [PDF]

, 2019
Some relationships between ray proportions, strength and shrinkage properties and basic density in hardwood species were highlighted. A better understanding of their relationships caused by the variation in moisture content in the hygroscopic domain ...
Candelier, Kévin, Elaieb, Mohamed Tahar, Jalleli, Mounir, Langbour, Patrick, Shel, Foued   +4 more
core   +1 more source

Identifying heartwood-rich stands or stems of Pinus sylvestris by using inventory data

Silva Fennica, 1999
Variations in heartwood percentage, heartwood radius and sapwood width, within and between stands of Scots pine (Pinus sylvestris L.), were analysed using a database of 198 CT-scanned (computer tomography) stems from 33 research plots (stands ...
Björklund, Lars
doaj   +1 more source

End-use related physical and mechanical properties of selected fast-growing poplar hybrids (Populus trichocarpa x P-deltoides) [PDF]

, 2007
This study focused on physical and mechanical properties of fast-growing poplar clones in relation to potential end uses with high added value. A total of 14 trees from three different clones, all P.
De Boever, Lieven, Stevens, Marc, Van Acker, Joris, Vansteenkiste, Dries   +3 more
core   +3 more sources

UPLC-ESI-MS/MS-Based Widely Targeted Metabolomics Analysis of Wood Metabolites in Teak (Tectona grandis)

Molecules, 2020
The properties of teak wood, such as natural durability and beautiful color, are closely associated with wood extractives. In order to further understand the performance differences between teak heartwood and sapwood, we analyzed the chemical components ...
Guang Yang, Kunnan Liang, Zaizhi Zhou, Xiyang Wang, Guihua Huang   +4 more
doaj   +1 more source

Value of complete information on red heartwood formation in beech (Fagus sylvatica)

Silva Fennica, 2002
Beech (Fagus sylvatica L.) is the most important deciduous tree species in Germany. The wood of beech shows normally a bright colour (white beech) as long as no coloured heartwood has been formed.
Knoke, Thomas
doaj   +1 more source

Studies on European beech (Fagus sylvatica L.). Part 1: Variations of wood colour parameters [PDF]

, 2005
Colour parameters of European beech were measured using CIELab system. 103 logs from 87 trees in 9 sites were cut into boards to study the variations of wood colour parameters. Both site and tree effect on colour were observed.
Dumonceaud, Olivier, Gril, Joseph, Liu, Sheng-Quan, Loup, Caroline, Thibaut, Anne, Thibaut, Bernard   +5 more
core   +3 more sources

Valerian Root in Treating Sleep Problems and Associated Disorders—A Systematic Review and Meta-Analysis

Journal of Evidence-Based Integrative Medicine, 2020
Sleep problems are widely prevalent and associated with various comorbidities including anxiety. Valerian ( Valeriana officinalis L.) is a popular herbal medicine used as a sleep aid, however the outcomes of previous clinical studies are inconsistent ...
Noriko Shinjyo, Guy Waddell, Julia Green
doaj   +1 more source