Results 21 to 30 of about 3,056 (179)

Chemical changes of polysaccharides in heat-treated European beech wood

open access: yesJournal of Wood Science
This work deals with the influence of different heat treatment temperatures (140, 150, 160, 170, 180, 190, 200, and 210 °C) on changes in sapwood and red heartwood of European beech (Fagus sylvatica L.). According to the results of wet chemistry methods,
Miroslav Gašparík   +4 more
doaj   +1 more source

Metabonomics Analysis of Stem Extracts from Dalbergia sissoo

open access: yesMolecules, 2022
Dalbergia sissoo is a woody plant with economic and medicinal value. As the pharmacological qualities and properties of the wood from this plant primarily depend on its extractives, in this study, the metabolomic analysis of extractives from its stems ...
Mengxue Li   +3 more
doaj   +1 more source

Water Released From Vessel Embolism May Temporarily Halt Further Embolism in Tropical Dipterocarp Trees

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT The formation of air bubbles in the xylem, known as embolism, reduces hydraulic conductivity and can ultimately lead to catastrophic failure of a tree's water transport system. When a vessel embolises, it releases water into the surrounding xylem tissue.
Arne Scheire   +15 more
wiley   +1 more source

Bark‐associated yeasts and their potential role as tree carbon sink at the treeline of the southern Andes

open access: yesPlant Biology, EarlyView.
In the southern Andes, Nothofagus pumilio shows elevational decreases in the concentrations of carbon reserves which are the food of bark‐associated yeasts, suggesting that competition for carbohydrates between tree growth and bark‐associated yeasts may cause carbon shortages.
F. I. Piper   +7 more
wiley   +1 more source

The applicability of the Pipe Model Theory in trees of Scots pine of Poland

open access: yesJournal of Forest Science, 2008
In order to test the application importance of the Pipe Model Theory and to develop models for the share of sapwood in tree stems, a total of 114 Scots pines (Pinus sylvestris L.) were felled within the natural range of this species in three natural ...
T. Jelonek   +5 more
doaj   +1 more source

Evidence for a trade‐off between growth rate and xylem embolism resistance in 22 Eucalyptus species

open access: yesNew Phytologist, Volume 251, Issue 5, Page 2407-2426, September 2026.
Examples of cross‐sectional images of branchlets at 4× and 40×. Summary Within the growth–survival trade‐off framework, embolism resistance is considered a contributor to survival, yet whether greater embolism resistance inherently limits growth remains unclear.
Tiantian Pan   +9 more
wiley   +1 more source

Maximum water stress is decoupled from climate, traits, and growth in a xeric oak

open access: yesNew Phytologist, Volume 251, Issue 5, Page 2392-2406, September 2026.
We sampled sites across the geographic distribution of blue oak (Quercus douglasii) in California, USA, which spans a large range of mean annual precipitation. Summary Our ability to explain and predict the spatial patterns of forest mortality remains limited.
Leander D. L. Anderegg   +7 more
wiley   +1 more source

Lack of Hydraulic Acclimation in Response to Multiple Droughts and Recovery

open access: yesPlant, Cell &Environment, Volume 49, Issue 9, Page 6931-6943, September 2026.
ABSTRACT Human‐caused climate change is expected to bring more frequent and extended droughts with shorter wet periods of relief in between for many regions of the world. Critical knowledge gaps remain around the extent to which tree species can acclimate physiologically to repeated droughts.
Jaycie C. Fickle   +4 more
wiley   +1 more source

Comparative analysis of the anatomical structure of heartwood and sapwood selected Gymnocladus canadensis Lam. trees in Srpska Crnja [PDF]

open access: yesArchives of Biological Sciences, 2011
This paper shows the results obtained from the study of the macroscopic-microscopic structure (capillary system) in the growth stem of Gymnocladus canadensis Lam.
Vilotić Dragica   +4 more
doaj   +1 more source

Sapwood area – leaf area relationships for coast redwood [PDF]

open access: yesCanadian Journal of Forest Research, 2005
Coast redwood (Sequoia sempervirens (D. Don) Endl.) trees in different canopy strata and crown positions were sampled to develop relationships between sapwood cross-sectional area and projected leaf area. Sampling occurred during the summers of 2000 and 2001 and covered tree heights ranging from 7.7 to 45.2 m and diameters at breast height ranging ...
Stancioiu, P T, O'Hara, K L
openaire   +2 more sources

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