The sapwood generally is light, and the wood of trees which form no heartwood changes but little, except when stained by forerunners of disease.
Heartwood reddish brown, sapwood yellowish white, and there is often a good deal of it.
In the species which do not form heartwood, the decrease toward the pith is gradual, but where heartwood is formed the change from a more moist to a drier condition is usually quite abrupt at the sapwood limit.
The broad sapwood whitish, heartwood light brown, both with shades of gray and red.
They then enter the wood and continue their excavations deep into the sapwood or heartwood until they attain their normal size.
The width of the sapwood varies considerably for different kinds of pine.
The sapwood shrinks more than the heart because it contains more water, and faster because, being on the outside, it is more exposed.
Why is green wood heavier and softer than dry wood, and the sapwood of green timber softer than the heart?
Decay sets in more rapidly in the sapwoodand between the wood and the bark during the period of active growth, because of the perishable nature of the substances involved in the growth.
It will be an advantage also to show not only the heartwood but the sapwood and bark.
Reject sapwood as far as possible, because it is usually inferior to the heartwood.
In the case of elm and young ash the sapwood is, however, superior to the heart.
The sapwood is, as a rule, darker in the whitewood class than the heartwood, whether seasoned or unseasoned, but is paler in colour in most hardwood trees which have had time to season.
Where this strong contrast between sapwood and heartwood exists, the salesperson should know the sapwood requires more stain than the remainder of the wood.
A hardwood of extreme durability, with white sapwood and a beautiful golden-yellow heartwood which on seasoning becomes dark brown, mottled with still browner streaks.
The more leaves on a tree the more sapwood it must have to supply them with moisture.
The cambium layer surrounds the sapwood and the bark covers all.
The color of the heartwood is yellowish or russet brown; that of the distinct sapwoodmuch lighter.
In some cases the sapwood is very thin and in others it is very thick, depending partly on the kind of tree, and partly on its age and vigor.
It is principally through the sapwood that the water taken in by the roots is carried up to the leaves.
The grubs of this insect burrow in the sapwood and kill the tree or make it unfit for commercial use.
Heartwood more deeply colored than the sapwood but without distinct boundary line.
The crisp scaling bark had caught freely, and the resinous sapwoodwas readily yielding to the flames.
The fire was now making less noise--the sapwood having nearly burnt out--and the detonations caused by the escape of the pent gases from the cellular cavities of the wood had grown less frequent.
Sapwood is vitally essential to the life of the tree, but is lighter, weaker, less durable, and less valued in construction.
Diseases of the sapwood cut off the water supply, which is pumped upward from the roots.
Upon exposure by a wound, the sapwood just underneath the bark dies, dries out, and checks.
Sapwood ailments cut off the water supply that rises from the roots.
Where the wound is large, the exposed sapwood dies, dries out, and cracks.
In some cases, where both heartwood and sapwood appear, it is difficult to distinguish between them as their colors are so nearly alike.
The sapwood really acts as a pipe line to carry water from the roots to the top of the tree.
Because it takes up so much moisture and plant food, sapwood rots much more quickly than heartwood.
The wood is hard, dense, heavy, strong, the heartwood brown or black, the wide sapwoodwhite or yellowish.
The heartwood is distinctly red, and the sapwood white, this color combination making very striking effects when finished for cedar chests, closets, and interior woodwork.
The sapwood is nearer the bark and is honeycombed with passages which serve to carry the sap from the roots to the tree top, while just under the bark is the bright, green, living layer, known as cambium, which is renewed each year.
The cambium is killed and the sapwood becomes watery and reddish brown as it becomes infected.
Short, longitudinal egg galleries are etched into the sapwood and from 20 to 60 eggs deposited in small niches cut on either side of the gallery.
It is estimated that defects caused by larval tunnels in the sapwood and heartwood of host trees costs the hardwood timber industry millions of dollars each year.
The adult bores a horizontal hole into thesapwood of a healthy tree for a few inches and later constructs two or three shorter lateral branches.
After becoming established, the fungus begins penetrating the sapwood and attacks the living cambium.
The larvae then bore into the sapwood and heartwood, returning occasionally to feed in the inner bark.
A brown discoloration, appearing as spots or a ring, is observed by cutting into the outer sapwood of the infected stem or branch.
Once larvae enter the wood they bore upward through the sapwood and into the heartwood and pupate behind a plug of excelsior-like frass.
A second symptom of the disease is found in the outer sapwood of the tree.
Galleries up to one-half inch in diameter extend upward through the sapwood into the heartwood.
The large winding tunnels constructed by the larvae in the sapwoodand heartwood of living hardwoods serve as an entrance for wood-rotting fungi and insects such as the carpenter ant.
The beetle attacks fresh stumps and living trees by boring through the bark and constructing galleries on the face of the sapwood where eggs are laid.
The adults bore into sapwood or heartwood of logs and lumber, making pin-sized holes which are stained by the ambrosia fungus.
The other day the hull Tribe j'ined to attack an' capture a big Grizzly and was licked bad, when the War Chief Sapwood came to the rescue an' settled the owld baste with one kick on the snoot.
A feller that kin kick like that didn't orter be called Sapwood nor Saphead nor Sapanything.
Use shellac, liquid grafting wax or melted paraffine over the cut bark, cambium and adjoining sapwood immediately after the final cut is made.
When bleeding does occur it may be checked by making one or more cuts with the knife or saw into the sapwood of the trunk below the graft.
It sometimes happens that whensapwood is transformed into heart, a physical change, as well as a coloring process, affects it.
The heart is pale brown, and the thick sapwoodnearly white.
The thicksapwood is not wanted, and in the process of converting a trunk into posts, the woodsman first splits off the sap and throws it away.
Its color is dark, tinged with red, the thin sapwood being whiter.
The heartwood is rich, dark brown, the sapwood lighter.
The resin passages are few, large, and conspicuous; color, clear light orange, the thicksapwood lighter.
The wood is hard, heavy, strong, checks badly in drying, and has a rich brown color, thesapwood being yellow.
The sapwood is on the outside of timbers and is often more exposed than the heart.
The wood is light, soft, usually narrow-ringed, color light brown, the thick sapwood lighter.
Its color is light brown, and the thinsapwood is hardly distinguishable from the heart.
The medullary rays are few but conspicuous; color light red, the sapwood lighter.
The sapwood is lighter in color than the heart, and decays more quickly.
In trunks of small and medium size, the sapwood may amount to more than the heartwood, and is a total loss.
Wood heavy, hard, close-grained, light reddish brown, with thin clear yellow sapwood of 7 or 8 layers of annual growth.
In this way the useless liquid which is within will run out through the sapwoodinstead of having to die in a mass of decay, thus spoiling the quality of the timber.
The lowest part, after the tree is cut down and the sapwood of the same thrown away, is split up into four pieces and prepared for joiner's work, and so is called "clearstock.
The proportional amount of sapwood varies greatly, often, as in long-leaf pine, constituting 40 per cent.
COLOR In species which show a distinct difference between heartwood and sapwood the natural color of heartwood is invariably darker than that of the sapwood, and very frequently the contrast is conspicuous.
It is true, however, thatsapwood is usually more free from latent defects than heartwood.
Consequently thesapwood of an old tree, and particularly of a forest-grown tree, will be freer from knots than the heartwood.
The sapwood of white oak may be impregnated with creosote with comparative ease, while the heartwood is practically impenetrable.
In fact, in the case of large and old hickory trees, the sapwood nearest the bark is comparatively weak, and the best wood is in the heart, though in young trees of thrifty growth the best wood is in the sap.
As a tree increases in age and diameter an inner portion of the sapwood becomes inactive and finally ceases to function.
With the exception of this one annual ring, or portion of one, the density of the wood substance of the sapwood is nearly the same the year round.
This is on the belief that sapwood is not only more subject to decay, but is also weaker than heartwood.
As the tree gets larger, the sapwood must necessarily become thinner or increase materially in volume.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "sapwood" in a variety of sentences. We hope that you will now be able to make sentences using this word.
