Results 41 to 50 of about 3,875 (178)

Detection of electric resistivity tomography and evaluation of the sapwood-heartwood demarcation in three Asia Gymnosperm species

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, Chung, Chih-Hsin, Yang, Te-Hsin, Lin, Far-Ching   +3 more
doaj   +1 more source

Tree‐ring structure determines the temporal coordination between xylem growth and the gain in hydraulic conductivity in the outermost ring

New Phytologist, Volume 250, Issue 6, Page 3732-3746, June 2026.
Summary 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 ...
Laura Fernández‐de‐Uña, Cyrille B. K. Rathgeber, Gonzalo Pérez‐de‐Lis, Anjy N. Andrianantenaina, Matthias Cuntz   +4 more
wiley   +1 more source

Comparison of Pinus Pinea Heartwood and Sapwood Pulps Obtained by Soda-Potassium Borohydride Method

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020
This study was aimed to compare pulp properties of Pinus pinea heartwood and sapwood pulp obtained from modified soda method and to investigate effects of potassium borohydride (KBH4) used as a protective agent in cooking processes.
Ahmet Tutuş, Mustafa Çiçekler, Saniye Erkan   +2 more
doaj  

Advances in the Study of Heartwood Formation in Trees. [PDF]

Life (Basel)
Heartwood, serving as the central constituent of the xylem, plays a crucial role in the growth, development, and resilience of trees. The process of heartwood formation constitutes a complex biological phenomenon influenced by various factors. A thorough examination of the mechanisms underpinning heartwood formation not only enhances our understanding ...
Yang S, Qin F, Wang S, Li X, Zhou Y, Meng S.   +5 more
europepmc   +4 more sources

Composition, Anti-mildew Fungal Activities of the Heartwood Essential Oil of from Taiwan

Natural Product Communications, 2018
In this study, anti-mildew fungal activities of the heartwood essential oil, and its constituents from Chamaecyparis formosensis were evaluated in vitro against 7 mildew fungi.
Yu-Chang Su, Kuang-Ping Hsu, Chen-Lung Ho   +2 more
doaj   +1 more source

Effects of Heat Treatment on Durability of Merbau Heartwood

BioResources, 2015
Merbau wood has been widely used in outdoor applications. However, it has a disadvantage in that its water-soluble extractives readily leach out and stain adjacent materials. Heat treatment is an efficient technique to solve this problem.
Yuchao Liao, Jianjing Wang, Zhaohua Lu, Jin Gu, Chuanshuang Hu   +4 more
doaj   +1 more source

Homoisoflavonoids—From Natural Specificity and Biosynthesis to Precision Health‐Promoting Mechanisms

Food Frontiers, Volume 7, Issue 3, May 2026.
Homoisoflavonoids are rare flavonoids with a unique bi‐aromatic oxygen‐heterocyclic structure. This review synthesizes their structure–activity relationships in anti‐inflammatory, hypoglycemic, and anticancer contexts. By highlighting their specific natural distribution and outlining biosynthetic pathways, it provides a conceptual framework and ...
Jing Zhang, Han Chen, Jinping Si, Zhigang Han, Xinfeng Zhang   +4 more
wiley   +1 more source

The Transboundary Reach of the Columbia River: Cottonwood Colonization Followed Flow Moderation From the Columbia River Treaty Dams

River Research and Applications, Volume 42, Issue 4, Page 837-850, May 2026.
ABSTRACT The Columbia river provides the largest Pacific outflow in the Western Hemisphere and the greatest hydropower production of any North American river system. For hydropower generation and flood risk management, four massive water storage reservoirs followed the Columbia River Treaty between Canada and the United States, with three Canadian dams,
Colleen A. Phelan, Greg Utzig, Stewart B. Rood   +2 more
wiley   +1 more source

Radial Distribution of Lipophilic Extractives in Walikukun (Schoutenia ovata Korth.) Wood

South-East European Forestry
Walikukun (Schoutenia ovata Korth.) is a commercially significant wood species in Indonesia. Heartwood, in particular, is important due to the natural durability and aesthetics, while lipophilic extractives play a crucial role in the formation. Therefore,
Rizki Arisandi, Arom Figyantika, Bagus Praditya Harliando, Fadil Yudasmara Putra, Vincentius Andri Kiranu Pasquale, Ganis Lukmandaru   +5 more
doaj   +1 more source

Exorcizing Divergence in Tree‐Ring Density Along the Rocky Mountains

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Briffa et al. (1998), https://doi.org/10.1038/35596 published a seminal paper on the reduced sensitivity of annual tree growth to temperature across Northern Hemisphere treeline stands. By averaging tree‐ring chronologies to sub‐continental means, they found decade‐long trends in maximum latewood density (MXD) progressively diverging from ...
Marcel Kunz, Max C. A. Torbenson, Frederick Reinig, Edurne Martinez del Castillo, Ulf Büntgen, Rob Wilson, Inga K. Homfeld, Greg King, Emily Reid, Kevin J. Anchukaitis, Valerie Trouet, Karen E. King, Grant L. Harley, Justin T. Maxwell, Adam Csank, Ellie Broadman, Eileen Kuhl, Julie Edwards, Philipp Römer, Björn Günther, Christian Gerber, Jan Esper   +21 more
wiley   +1 more source