Results 181 to 190 of about 10,548 (206)
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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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Physiological changes during heartwood formation in young Eucalyptus bosistoana trees
IAWA Journal, 2018ABSTRACTEucalyptus bosistoanaF. Muell. is valued for its naturally durable heartwood. As part of anE. bosistoanabreeding programme, we have tested the hypothesis that there is a prolonged transition from sapwood to heartwood in young trees, resulting in a wide transition zone.
Mishra, Gayatri +2 more
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Formation of Earlywood, Latewood, and Heartwood
1997A clear periodicity in light and dark color is observed on the cross surface of trees grown in temperate and warm-temperate zones, especially conifers. Each period corresponds to a growing ring (an annual ring in temperate and warm-temperate zones). The light and dark colors are ascribed to the different cells formed in the earlier and the later parts ...
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The Formation of Heartwood and Its Extractives
1999During evolution, trees developed several defense systems to maintain long term existence. One of these was the development of durable heartwood, now known to be due to the extractives present. The term “extractives” used in this chapter covers a large number of organic compounds of different classes which can be extracted from wood or bark with polar ...
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On the formation of facultatively colored heartwood in Beilschmiedia tawa
Wood Science and Technology, 1968The microscopic investigation in navashin-fixed material of Beilschmiedia tawa has shown that this species is a typical example of a tree with facultatively colored heartwood. Microtechnological measurements, as for instance of the shrinkage or the sorption or other features, have been proved suitable to determine whether or not the heartwood ...
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Function, Formation and Control of Heartwood and Extractives
1987The events of plant cell division and cell enlargement have received much attention. On the other hand, the changes during maturation as well as the onset of cellular senescence, which are less easily observed, have received comparatively little attention.
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Wood anatomy and heartwood formation in Neem (Azadirachta indica A. Juss.)
Botanical Journal of the Linnean Society, 1988The wood of Azadirachta indica is diffuse porous. Axial parenchyma is paratracheal banded or vasicentric. Rays are uniseriate to multiseriate and heterocellular with procumbent and upright cells. There is a strong negative correlation between vessel member length and diameter.
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Plant Physiology and Biochemistry
Lilac (Syringa oblata) is a well-known horticultural plant, and its aromatic heartwood is widely utilized in Traditional Mongolian Medicine for treating angina. However, limited research on the dynamic changes and mechanisms of aromatic substance formation during heartwood development hinders the analysis and utilization of its medicinal components. In
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. However, limited research on the dynamic changes and mechanisms of aromatic substance formation during heartwood development hinders the analysis and utilization of its medicinal components. In
Badalahu Tai +14 more
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Physiology of Cambial Growth, Storage of Reserves and Heartwood Formation
2001Wood constitutes a renewable bio-product of huge ecological and economical value. Within axes of trees, wood formation starts during cambial growth and inwards produced cells which differentiate and mature during the first growing season forming functional units.
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