Results 1 to 10 of about 24,131 (226)

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, Joana P A Ferreira, 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]

Plants
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, Tayierjiang Aishan, Na Wang, Ümüt Halik, Shiyu Yao   +4 more
doaj   +2 more sources

Positional differences in the micro- and ultra-structural variations of ray parenchyma cells during the transformation from sapwood to heartwood [PDF]

Frontiers in Plant Science
Ray parenchyma cells are involved in the initiation of heartwood formation. The position within a ray influences the timing of ray parenchyma cell differentiation and function; however, there is little information concerning the positional influence on ...
Lijuan Yin, Lijuan Yin, Lingyu Ma, Xiaomei Jiang, Yonggang Zhang, Yupei Wei, Yuan Cao, Lihong Yao, Juan Guo   +8 more
doaj   +2 more sources

Allometry of Sapwood Depth in Five Boreal Trees [PDF]

Forests, 2017
This paper analyzes sapwood variability and allometry within individuals of Populus tremuloides, Pinus contorta, Pinus banksiana, Picea mariana, and Picea glauca. Outside bark diameter at breast height (DBH) and sapwood depth (sd) in four cardinal directions were measured in individuals in stands in Alberta and Saskatchewan, Canada.
Caterina Valeo
exaly   +2 more sources

Grade Classification of Agarwood Sapwood Using Deep Learning

JOIV: International Journal on Informatics Visualization
The agarwood tree (Aquilaria sp.) is a tree that produces agarwood, which is a black resin that has a distinctive fragrant smell. In Indonesia, one that is commonly traded is sapwood agarwood.
Heliza Rahmania Hatta, Sri Nurdiati, Irman Hermadi, Maman Turjaman   +3 more
doaj   +2 more sources

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

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

Extractives elucidation of Taiwania cryptomerioides sapwood [PDF]

Journal 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, Shih-Chang Chien, Yueh-Hsiung Kuo, Sheng-Yang Wang   +3 more
openaire   +2 more sources

Penetration and effectiveness of micronized copper in refractory wood species [PDF]

, 2016
The North American wood decking market mostly relies on easily treatable Southern yellow pine (SYP), which is being impregnated with micronized copper (MC) wood preservatives since 2006. These formulations are composed of copper (Cu) carbonate particles (
Boone, Matthieu, Butron, Maria Isabel, Civardi, Chiara, Dierick, Manuel, Michel, Elisabeth, Schubert, Mark, Schwarze, Francis WMR, Van Acker, Joris, Van den Bulcke, Jan, Wick, Peter   +9 more
core   +3 more sources

Tree differences in primary and secondary growth drive convergent scaling in leaf area to sapwood area across Europe [PDF]

, 2018
open28siTrees scale leaf (AL) and xylem (AX) areas to couple leaf transpiration and carbon gain with xylem water transport. Some species are known to acclimate in AL : AX balance in response to climate conditions, but whether trees of different species ...

core   +1 more source

Long-term trends of changes in pine and oak foliar nitrogen metabolism in response to chronic nitrogen amendments at Harvard Forest, MA [PDF]

, 2015
We evaluated the long-term (1995–2008) trends in foliar and sapwood metabolism, soil solution chemistry and tree mortality rates in response to chronic nitrogen (N) additions to pine and hardwood stands at the Harvard Forest Long Term Ecological Research
Long, Stephanie, McDowell, William H., Minocha, Rakesh, Minocha, Subhash C., Turlapati, Swathi A.   +4 more
core   +2 more sources