Results 21 to 30 of about 3,056 (179)
Chemical changes of polysaccharides in heat-treated European beech wood
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
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
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
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
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
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
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
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]
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]
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

