Results 1 to 10 of about 2,994 (137)
Chemical characterization and extractives composition of heartwood and sapwood from Quercus faginea
PLoS 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
Isabel Miranda +2 more
exaly +3 more sources
Tree-ring structure determines the temporal coordination between xylem growth and the gain in hydraulic conductivity in the outermost ring. [PDF]
New PhytolSummary The study of seasonal xylem hydraulics has predominantly focused on embolism‐induced losses, whereas growth‐driven increases in hydraulic capacity have received little attention. We assessed the intra‐annual dynamics of xylem formation and gain of conductivity in the current‐year ring of three species with contrasting tree‐ring structure ...
Fernández-de-Uña L +4 more
europepmc +2 more sources
The interplay between hydraulic capacitance and stomatal regulation strategy affects soil-plant hydraulics and transpiration. [PDF]
New PhytolSummary Plant water storage contributes to transpiration, but it is unclear how its relevance in supporting transpiration depends on the stringency of stomatal regulation. Here, we show the compounding effect of stomatal regulation and hydraulic capacitance on plant water use, by means of a soil–plant hydraulic model and measurements of leaf water ...
Martinetti S +3 more
europepmc +2 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]
PlantsThe 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
Molecules, 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
Relevance of wood anatomy and size of Amazonian trees in the determination and allometry of sapwood area [PDF]
Acta 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
Coffee 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.)
Silva 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
Silva Fennica, 2012 The proportions of sapwood and heartwood of trees have significant impacts on various uses. Electric resistivity tomography (ERT) and corresponding electrical resistance (ER) value maps were examined in Japanese cedar (Cryptomeria japonica D.
Lin, Chen-Jung +3 more
doaj +1 more source
Agronomy, 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