Having the radicle of the seed directed towards the hilum.
The cord which suspends the embryo; and which is attached to the radicle in the young state; the proembryo.
Having a radicle which is not inclosed by the cotyledons or plumule; of or relating to an exorhiza.
Having the radicle of the embryo sheathed by the cotyledon, through which the embryo bursts in germination, as in many monocotyledonous plants.
A plant Whose radicle is not inclosed or sheathed by the cotyledons or plumule.
This word has also been used (but improperly) to describe any embryo whose radicle points towards, or is next to, the hilum.
Leaning or resting; -- said of anthers when lying on the inner side of the filament, or of cotyledons when the radicle lies against the back of one of them.
In other divisions the radicle is folded in a spiral manner, and the cotyledons follow the same course.
In an orthotropal seed the embryo is inverted or antitropal, the radicle pointing to the apex of the seed, or to the part opposite the hilum.
The embryo e, with its suspensor, is contained in the sac, the radicle pointing to the micropyle m.
The radicle r is folded on the edges of the cotyledons c which are accumbent.
Again, the cotyledons are conduplicate when the radicle is dorsal, and enclosed between their folds.
According to the mode in which the seed is attached to the pericarp, the radicle may be directed upwards or downwards, or laterally, as regards the ovary.
Thus, in some cruciferous plants, as the wallflower, the cotyledons are applied by their faces, and the radicle (figs.
When the seed is horizontal as regards the pericarp, the radicle is either centrifugal, when it points to the outer wall of the ovary; or centripetal, when it points to the axis or inner wall of the ovary.
The radicle r is folded on the back of the cotyledons c, which are said to be incumbent.
Transverse section of the seed of the Wallflower (Cheiranthus), showing the radicle r folded on the edges of the accumbent cotyledons c.
It has been already stated that the radicle of the embryo is directed to the micropyle, and the cotyledons to the chalaza.
AMMO'NIUM, the name given to the hypotheticalradicle (formula, NH4) of ammonium salts.
Stem by a firm Small and Strong radicle which is mearly the prolongation of the Stem which is hollow and jointed and is rather larger than the largest quill.
The radicleis not therefore root itself, but only emits rootlets.
The germ or the radicle must observe different positions towards the umbilicus, according as the seed-leaf or the testa has been more or less involuted, and according as the germ is removed from the micropyle.
At this sweating stage, the germination begins; the fibrils of the radicle first sprout forth from the tip of every grain, and a white elevation appears, that soon separates into three or more radicles, which grow rapidly larger.
After a time the radicle apparently becomes accustomed to the irritation, as occurs in the case of tendrils, for it again grows downwards, although the bit of card or other object may remain attached to the tip.
By this latter time a sixth radicle had become bent at a right angle from the side bearing the square.
These two sets of cases, especially the first one, prove that the apex of the radicle is sensitive to slight contact and that the upper part bends from the touching object.
A radicle of considerable length had a small square of card fixed with shellac to its apex laterally: after only 7 h.
From these cases we may infer that the pressure from a bit of card affixed with shellac to one side above the apex, is hardly a sufficient irritant; but that it occasionally causes the radicle to bend like a tendril towards this side.
On close examination only a single ungreased radicle could be found which had not become curved towards the sieve.
Thirdly, the point of the radicle is so fine that it is difficult not to cauterise it either too much or too little.
The radicle first protrudes from a small hole at one end of the tough, leathery, winged fruit.
It is therefore manifest that a thin slice cut off one side of the conical apex, causes the upper growing part of the radicle of this Phaseolus to bend, through the transmitted effects of the irritation, away from the sliced surface.
The sides of the radicle are also sensitive to contact, but in a widely different manner.
The squares attached above the apex cause the radicle to bend abruptly, the part above and beneath remaining nearly straight; so that here there is little or no transmitted effect.
Both seeds of the Avena germinated, one grew well, the other had its radicle brown and withered.
Of the two Rumex seeds, one died and the other germinated; but its radicle was brown and soon withered.
Here is one that has but recently burst its envelope--do you see the little radicle striking downwards?
In the glyph cib, already referred to, I am inclined to see but a cursive rendering of the same idea, with the seed and radicle in the centre and the fringed border barely indicated by a few short lines.
Other compounds are also possible where the ap, tejas, or the vâyu atoms form the inner radicle and earth atoms dynamically surround them (e.
There cannot be any compounding of the five elements or even of the three, but the atoms of different elements may combine when one of them acts as the central radicle (upa.s.tambhaka).
The embryo taken out whole; the thick mass is the cotyledon, the narrow body partly enclosed by it is the plumule, the little projection at its base is the very short radicle enclosed in the sheathing base of the first leaf of the plumule.
The envelope breaks, the little plant makes its appearance; radicle and stalk come to light.
It is the young plant which absorbs the glucose, and which must therefore be destroyed; they cut off the radicle with their mandibles, and gnaw the stalk; the germ is thus suppressed.
If we use the methyl radicle we get methyl alcohol: if we use the ethylradicle we get ethyl alcohol.
The methyl radicle and the ethyl radicle, since they form the basis of two of the paraffin series, are called paraffin radicles, so that we can describe this useful alcohol as a paraffin radicle with a hydroxyl radicle hooked on to it.
Also imagine one atom of oxygen with its two hooks outstretched like two arms, and just link one radicleon to each.
The radicle is blunt and is about 3/4 mm in length, while the cotyledons are 1/2 mm long.
Note: This word has also been used (but improperly) to describe any embryo whose radicle points towards, or is next to, the hilum.
Defn: Having a radicle which is not inclosed by the cotyledons or plumule; of or relating to an exorhiza.
Defn: Having the radicle of the embryo lying against the back of one of the cotyledons; incumbent.
Defn: A plant Whose radicle is not inclosed or sheathed by the cotyledons or plumule.
Defn: Having the radicleof the seed directed towards the hilum.
Defn: Leaning or resting; -- said of anthers when lying on the inner side of the filament, or of cotyledons when the radicle lies against the back of one of them.
Defn: The cord which suspends the embryo; and which is attached to the radicle in the young state; the proembryo.
It is generally agreed among botanists that the plumule and radicle (the plant and little root) at this stage draw their nourishment from the cotyledon or seed-lobe, to which they are still joined.
The little leafy shoot which pushes upward is the part that botanists call the plumule, and the part which pushes from the central axis (or plantule) is called the radicle or little root.
These on the one hand resulted in the enunciation of his ethyl theory, by the light of which he looked upon those substances as compounds of the radicle ethyl (C2H5), in opposition to the view of J.
Planting nuts radicle end up produced straighter seedlings than planting them on their side.
Planting nuts with the radicle end down invariably produced seedlings with undesirable crooks in the root-stem region which made them unsuitable for grafting.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "radicle" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: bulb; radix; root; tap; taproot; tubercle
