Results 31 to 40 of about 10,548 (206)
Effect of branch position and light availability on shoot growth of understory sugar maple and yellow birch saplings [PDF]
, 2000 Phenotypic plasticity enables tree saplings to change their morphology according to their environment to grow toward a better light micro-habitat. Therefore, processes of crown development could be expected to vary as a function of light.
Godet, J., Messier, C., Nikinmaa, E.
core +1 more source
New Zealand Journal of Forestry Science, 2018 Background Eucalyptus bosistoana is currently investigated in New Zealand for its potential to produce naturally durable timber in short-rotation plantations. Little is known of heartwood formation in young trees.
Gayatri Mishra +2 more
doaj +1 more source
Evaluation of wood pretreatments on oak and cedar [PDF]
, 1997 In a separate study, we conducted a series of high-precision radiocarbon measurements using wood from Britain and New Zealand to investigate interhemispheric offsets and possible temporal variations.
Head, M.J. +4 more
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A Review of the Factors Influencing Variations in the Heartwood Proportion for Solid Wood
South-East European Forestry, 2023 Using 146 journals, 6 chapters, 4 reports, 2 books, and a proceeding, this research seeks to investigate the factors that influence variations in the proportion of heartwood.
Rizki Arisandi +3 more
doaj +1 more source
Epsomite as flame retardant treatment for wood: Preliminary study [PDF]
, 2016 The effect of epsomite as flame retardant for wood has been investigated and compared with a commercial boron salt. Both flame retardants have been introduced into wood samples by vacuum impregnation.
Chimenos Ribera, Josep Maria +5 more
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Identifying heartwood-rich stands or stems of Pinus sylvestris by using inventory data
Silva Fennica, 1999 Variations in heartwood percentage, heartwood radius and sapwood width, within and between stands of Scots pine (Pinus sylvestris L.), were analysed using a database of 198 CT-scanned (computer tomography) stems from 33 research plots (stands ...
Björklund, Lars
doaj +1 more source
Biological Activities of Extracts from Sumac (Rhus spp.): A Review [PDF]
, 2007 Sumac is the common name for a genus (Rhus) that contains over 250 individual species of flowering plants in the family Anacardiaceae. These plants are found in temperate and tropical regions worldwide, often grow in areas of marginal agricultural ...
Giuseppe Mazza, Sierra Rayne
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PLoS ONE, 2021 Tree ring features are affected by environmental factors and therefore are the basis for dendrochronological studies to reconstruct past environmental conditions.
Federico Rossi +14 more
doaj +2 more sources
The watering of tall trees - Embolization and recovery [PDF]
, 2015 We can propound a thermo-mechanical understanding of the ascent of sap to the top of tall trees thanks to a comparison between experiments associated with the cohesion-tension theory and the disjoining pressure concept for liquid thin-films.
Gouin, Henri
core +6 more sources
Chemistry of Heartwood Formation
Mokuzai Gakkaishi, 2012 樹木が10年程の齢に達すると，幹や枝などにおいてその中心部から心材が形成される。心材の特性が色調・におい・耐久性など木材の諸性質を左右するといった木材利用上の興味に加え，樹木が心材を形成する意義の理解ならびに心材形成の機構の解明といった植物基礎科学的な興味が，長い間研究者を心材研究・心材形成研究へと向かわせてきた。心材形成は生物学的・化学的・物理学的変化を伴う複雑な樹木生理現象である。中でも化学的な変化となる，心材に特有な物質すなわち心材成分の新生・堆積は，これら化合物自体が色・におい・対生物活性を持つことが多いため，直接的に心材特性の発現に結び付けられ得る，心材形成時の最も顕著な変化現象と言えよう。本総説では心材形成について，主に「心材成分の堆積」に着眼して生理学的見地，生化学的見地，組織（化 ...
openaire +2 more sources