Results 31 to 40 of about 7,533 (269)

Relationship between Ring Width and Tracheid Characteristics In Picea crassifolia: Implication in Dendroclimatology

open access: yesBioResources, 2014
Ring width represents the total width of cells in a growing season. Relatively few studies have identified which of the parameters, cell number, size, or wall thickness is the greater contributor to variations in ring width.
Jinmei Xu   +3 more
doaj   +1 more source

Ray Tracheids in Abies [PDF]

open access: yesBotanical Gazette, 1912
1. Ray tracheids, marginal, interspersed, and elongated, were observed in association with wounds in A. amabilis and A. concolor. 2. They were also observed in uninjured material of A. homolepis and A. Veitchii. 3. Their usual position was in contact with a series of degenerated cells on one hand and a group of parenchyma on the other. 4.
openaire   +1 more source

RADIAL VARIATION OF TRACHEID FEATURES, SPECIFIC GRAVITY AND GROWTH RINGS IN Araucaria angustifolia (Bertol.) Kuntze PLANTED IN CUNHA-SP

open access: yesRevista do Instituto Florestal, 2015
We investigated wood features along growth rings of Araucaria angustifolia trees planted between November and December of 1980 in Parque Estadual da Serra do Mar in Cunha, State of São Paulo, Brazil.
Camila Moura Santos   +5 more
doaj   +1 more source

Modeled Tracheidograms Disclose Drought Influence on Pinus sylvestris Tree-Rings Structure From Siberian Forest-Steppe

open access: yesFrontiers in Plant Science, 2018
Wood formation allows trees to adjust in a changing climate. Understanding what determine its adjustment is crucial to evaluate impacts of climatic changes on trees and forests growth.
Margarita I. Popkova   +9 more
doaj   +1 more source

Wood Anatomy of Gnetales in a Functional, Ecological, and Evolutionary Context [PDF]

open access: yes, 2012
New scanning electron microscope (SEM) and light microscope data and illustrations are presented in order to compare hydraulic adaptations of non-gnetalean conifers and angiosperms to relevant wood features of Gnetales.
Carlquist, Sherwin
core   +3 more sources

Leaf hydraulic conductance for a tank bromeliad: axial and radial pathways for moving and conserving water

open access: yesFrontiers in Plant Science, 2013
Plants in the Bromeliaceae known as tank bromeliads essentially lack stems and absorptive roots and instead take up water from reservoirs formed by their overlapping leaf bases.
Gretchen B. North   +4 more
doaj   +1 more source

Identifying the main drivers for the production and maturation of Scots pine tracheids along a temperature gradient [PDF]

open access: yes, 2017
Even though studies monitoring the phenology and seasonal dynamics of the wood formation have accumulated for several conifer species across the Northern Hemisphere, the environmental control of tracheid production and differentiation is still ...
Cuny, Henri E.   +6 more
core   +3 more sources

Behavioral Change in Physical, Anatomical, and Mechanical Characteristics of Thermally Treated Pinus roxburghii Wood

open access: yesBioResources, 2023
Thermal treatment of pine wood was carried out at 80, 120, 160, and 200 °C for 2, 4, and 6 hours. The highest mean values were, for specific gravity (0.492), moisture content (29.1%), and maximum moisture content (191%), whereas the lowest mean values ...
Aman Gupta   +4 more
doaj   +2 more sources

Plasticity in variation of xylem and phloem cell characteristics of Norway spruce under different local conditions

open access: yesFrontiers in Plant Science, 2015
There is limited information on intra-annual plasticity of secondary tissues of tree species growing under different environmental conditions. To increase the knowledge about the plasticity of secondary growth, which allows trees to adapt to specific ...
Jozica eGricar   +6 more
doaj   +1 more source

How to quantify conduits in wood?

open access: yesFrontiers in Plant Science, 2013
Vessels and tracheids represent the most important xylem cells with respect to long distance water transport in plants. Wood anatomical studies frequently provide several quantitative details of these cells, such as vessel diameter, vessel density ...
Alexander eScholz   +3 more
doaj   +1 more source

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