Results 141 to 150 of about 5,539,134 (182)
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Journal of wood chemistry and technology, 2022
This study aims to investigate the sugar components which play an important role in the process of heartwood formation in young Swietania mahagoni. The methanol-water (70/30, v/v) extract was analyzed by GC-MS to determine sugar constituents. The content
Rizki Arisandi +3 more
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This study aims to investigate the sugar components which play an important role in the process of heartwood formation in young Swietania mahagoni. The methanol-water (70/30, v/v) extract was analyzed by GC-MS to determine sugar constituents. The content
Rizki Arisandi +3 more
semanticscholar +1 more source
Douglas-fir polyphenols and heartwood formation
Phytochemistry, 1997Abstract Phenolic extractives have been isolated from Douglas-fir sapwood and heartwood and identified by NMR and mass spectroscopy. Pinocembrin, [5,5′]-bisdihydroquercetin and two lignans, pinoresinol and 2,3-dihydro-2-(4′- O -β-glucopyranosyl-3′-methoxyphenyl)-3-hydroxymethyl-5-(3-hydroxypropyl)-7-methoxy-benzofuran are reported for the first time ...
Dellus, V. +5 more
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Formation Mechanism of Heartwood and Research Status
2021The formation mechanism of heartwood is a scientific problem which has not been fully revealed in wood science. Effective regulation of heartwood formation is a scientific problem that is rarely studied and has not yet achieved a breakthrough in the field of forest cultivation.
WU Guangping +9 more
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Changes in the intensity of heartwood formation in Scots pine (Pinus sylvestris L.) ontogenesis
IAWA Journal, 2022An essential stage in woody plant ontogeny (heartwood (HW) formation) determines tree resistance to weather conditions, wood quality (moisture, colour, resistance to biodegradation), and regulates the proportion of functionally active sapwood (SW) in ...
N. Galibina +10 more
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Scandinavian Journal of Forest Research, 2021
The heartwood of Dalbergia odorifera T. Chen (D. odorifera) is highly valuable. It was speculated that drought could promote heartwood formation in D. odorifera.
Zhiyi Cui +3 more
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The heartwood of Dalbergia odorifera T. Chen (D. odorifera) is highly valuable. It was speculated that drought could promote heartwood formation in D. odorifera.
Zhiyi Cui +3 more
semanticscholar +1 more source
, 2021
There is a need to better understand and promote formation of ‘Jiang Xiang’, the highly valuable heartwood of Dalbergia odorifera T. Chen. Plant growth regulators are the most widely used and generally most effective promoters of heartwood formation ...
Zhiyi Cui +6 more
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There is a need to better understand and promote formation of ‘Jiang Xiang’, the highly valuable heartwood of Dalbergia odorifera T. Chen. Plant growth regulators are the most widely used and generally most effective promoters of heartwood formation ...
Zhiyi Cui +6 more
semanticscholar +1 more source
Heartwood, its function and formation
Wood Science and Technology, 1976Some of the changes which occur in wood during the transition from sapwood to heartwood have been reviewed. The nature of these changes suggest that heartwood formation is a regulatory process serving to keep the amount of sapwood at an optimum level.
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CARBON DIOXIDE AND THE FORMATION OF HEARTWOOD
New Phytologist, 1971SummaryThe state of knowledge of the transition of sapwood into heartwood in trees is reviewed, and attention is drawn to the composition of the gas mixture available to such cells as remain alive in wood. The probable effect of such a mixture is postulated and experiments indicate that the high concentrations of carbon dioxide known to exist inside ...
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Plant physiology and biochemistry : PPB
Lilac (Syringa oblata) is a well-known horticultural plant, and its aromatic heartwood is widely utilized in Traditional Mongolian Medicine for treating angina.
Badalahu Tai +14 more
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Lilac (Syringa oblata) is a well-known horticultural plant, and its aromatic heartwood is widely utilized in Traditional Mongolian Medicine for treating angina.
Badalahu Tai +14 more
semanticscholar +1 more source