Results 1 to 10 of about 3,056 (179)

Chemical characterization and extractives composition of heartwood and sapwood from Quercus faginea

open access: yesPLoS ONE, 2017
Heartwood and sapwood of Quercus faginea were evaluated in relation to summative chemical composition and non-polar and polar extracts composition, including an assessment of antioxidant properties (DPPH and FRAP). Twenty trees from two sites in Portugal
Helena Pereira   +2 more
exaly   +3 more sources

Heartwood/Sapwood Characteristics of Populus euphratica Oliv. Trunks and Their Relationship with Soil Physicochemical Properties in the Lower Tarim River, Northwest China [PDF]

open access: yesPlants
The characteristics of heartwood and sapwood not only reflect tree growth and site quality but also provide insights into habitat changes. This study examines the natural Populus euphratica Oliv.
Tongyu Chen   +4 more
doaj   +2 more sources

Differences in Chemical Constituents between Dalbergia oliveri Heartwood and Sapwood and Their Effect on Wood Color

open access: yesMolecules, 2022
The purpose of this study was to characterize and quantify the chemical constituents of heartwood and sapwood of Dalbergia oliveri extract in order to investigate the chemical components that determine the formation of heartwood’s color.
Liuming Wei, Ruoke Ma, Yunlin Fu
doaj   +1 more source

Extractives elucidation of Taiwania cryptomerioides sapwood [PDF]

open access: yesJournal of Wood Science, 2021
AbstractTaiwania (Taiwania cryptomerioides Hayata) has long been regarded as a living fossil from the Tertiary period of Mesozoic Era for its distinguished yellowish-red color with purplish-pink streaks presented in its heartwood. With this elegant appearance that matches the color “red” for good fortune in the Taiwanese culture, Taiwania is supposed ...
Nai-Wen Tsao   +3 more
openaire   +2 more sources

Relevance of wood anatomy and size of Amazonian trees in the determination and allometry of sapwood area [PDF]

open access: yesActa Amazonica, 2019
Hydrological processes in forest stands are mainly influenced by tree species composition and morpho-physiological characteristics. Few studies on anatomical patterns that govern plant hydraulics were conducted in tropical forest ecosystems.
Luiza Maria Teophilo APARECIDO   +3 more
doaj   +1 more source

Gross heating value of various shade-trees wood in coffee plantation in Costa Rica and its relation with extractives and specific gravity

open access: yesCoffee and Cocoa Research Journal, 2018
Shade-trees with energy use in coffee plantations are an important alternative to increase profitability in groforestry systems. The aim of this study was to investigate gross calorific value (GCV) of 15 shade-tree species in coffee plantations in Costa ...
Roger Moya   +2 more
doaj   +1 more source

Non-destructive estimation of sapwood and heartwood width in Scots pine (Pinus sylvestris L.)

open access: yesSilva Fennica, 2010
Accurate estimates of the water conducting sapwood area are necessary to scale sapflow measurements to tree and stand level transpiration. We tested a non-destructive method, electric resistivity tomography (ERT), to estimate the area of conductive ...
Bieker, Dirk, Rust, Steffen
doaj   +1 more source

Community Analysis of Culturable Sapwood Endophytes from Apulian Olive Varieties with Different Susceptibility to Xylella fastidiosa

open access: yesAgronomy, 2021
Endophytes are symptomless fungal and/or bacterial microorganisms found in almost all living plant species. The symbiotic association with their host plants by colonizing the internal tissues has endowed them as a valuable tool to suppress diseases ...
Arafat Hanani   +10 more
doaj   +1 more source

Acacia melanoxylon in Argentina: heartwood content and its relationship with site, growth and age of the trees

open access: yesForest Systems, 2017
Aims of study: To characterize the wood of Acacia melanoxylon in relation to its potential use in the construction and furniture industry, here we determined the heartwood and sapwood content and distribution within the stem and analyzed their ...
Dora-Virginia Igartúa   +2 more
doaj   +1 more source

Detection of Emerald Ash Borer Infestations in Living Green Ash by Noninvasive Electronic-Nose Analysis of Wood Volatiles

open access: yesBiosensors, 2019
The emerald ash borer (EAB) has been the most destructive and costly nonnative insect to threaten the health of ash (Fraxinus) species in North America for at least the past 25 years. The development of methods for detecting visually-hidden EAB galleries
A. Dan Wilson   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy