Then too, there is a big demand for Chinese chestnuts as seed for the purpose of growing seedling trees to be planted in orchards or to be used as rootstocks in propagating horticultural varieties.
A present illustration is the series of Malling apple rootstocks which are grown from cuttings.
Rootstock Propagation Rootstocks for walnuts and hickories are very easily grown from seed.
Having perennial rootstocks or bulbs, but annual flowering stems; -- said of all perennial herbs.
The rootstocks are large and juicy and are eagerly sought by swine.
Two year old Chinese transplants are usually used as rootstocks and all grafting is done in the field.
From a number of older grafts of non-resistant Japanese-American hybrid scions on Japanese or Chinese rootstocks it appears that this indeed might be the case.
It is easy to see why plants with these running rootstocks take such rapid and wide possession of the soil, and why they are so hard to get rid of.
Some rootstocks are marked with large round scars of a different sort, like those of the Solomon's Seal (Fig.
Rootstocks are more commonly thickened by the storing up of considerable nourishing matter in their tissue.
Indeed, sometimes they are of no service to the plant, being reduced to mere scales or rudiments, such as those on the rootstocks of Peppermint (Fig.
Hydra), which has slender rootstocks bearing small, nutlike tubers, by which the plant multiplies exceedingly, especially in cotton fields.
Defn: Having perennial rootstocks or bulbs, but annual flowering stems; -- said of all perennial herbs.
He proposes to lest all the "rootstocks placed at his disposal in order to acclimatize the good French varieties to all the soils which suit these stocks.
The French experience with the eastern black walnut and the related Arizona walnut as rootstocks is interesting, as is the discussion of one method of propagation, where dormant whole-root grafts are started in pots under glass.
The bitternut is quite often used for rootstocks for the shagbark and shagbark hybrids.
Rootstocks and Interstocks for Hickories Reed(16) summarized the rootstock studies at Beltsville, Maryland, by stating that pecans were best on pecan seedlings and that shagbarks were successful on either shagbark or pecan rootstocks.
By horizontal rootstocks it creeps and forms patches almost impossible to eradicate.
The stout rootstocksare often erect, rising several inches to a foot above the ground, as if in imitation of a tree fern.
Sterile Fronds (New Hampshire)] The rootstocks send out slender, underground stolons which bear fronds the next year.
Athyrium angustum] Rootstocks horizontal, quite concealed by the thick, fleshy bases of old fronds.
As the jointed stipes, harking back to some ancient mode of fern growth, fall away from the rootstocks after their year of greenness, they leave behind a scar as in Solomon's seal.
One design of such rootstocks is to store up food (mostly starch), during the summer to nourish the young plants as they shoot forth the next spring.
The use of butternut rootstocks is also unsatisfactory, for they tend to produce trees of low vitality that in a few years fall victim to blight and then perish.
We know that even the use of clonal rootstocks does not entirely eliminate variability.
Only filberts offer such an opportunity for selection on somewhat the same basis as the East Malling clones of apple rootstocks which produce different sized scion varieties after grafting.
Seed propagation, however, must be practiced to produce the necessaryrootstocks upon which the selected varieties are budded or grafted.
My first experience with rootstocks for grafting came about in 1926 when I was working at the J.
All buds and scions died, but the following year two of the seedling rootstocks showed characteristic symptoms of the bunch disease.
After years of test I have decided to use the northern pecan seedlings as rootstocks for my shagbarks, pecans, and hicans because they are a fast growing stock tree.
Unfortunately, no non-suckering desirable clones of filberts have yet been reported and even the non-suckering Turkish tree hazel is grown from seed when such rootstocks are used (16).
I do not know whether or not there have been clonal rootstocks selected for Chinese chestnut.
There is a further problem in the propagation of varieties on seedling rootstocks in the nursery.
The rootstocks spread horizontally under the mud in places where the plant grows, continuing to throw up stems as they creep along.
Rootstocks rather thick, conical and cylindrical, standing at some distance from the tuft.
Rootstocks medium-sized, conical, crowded around the base of the plant.
Perennial by delicate filiform creeping rootstocks or creeping stems; peduncles filiform, 1--2' long.
Rootstocks thickened and very strongly toothed in 2 rows by the persistent bases of the stout petioles.
Calyx with minute if any appendages; rootstocks creeping, scaly-toothed.
The rootstocks of this, and also of the last plant, were used as a yellow dye by the aborigines.
A nutritious starch obtained from the rootstocks of the cassava plant, used as food and in making tapioca.
Bits of the rootstocks are dropped at intervals of 6 to 12 inches in the rows and covered with a wheel hoe.
For a new plantation the rootstocks should be secured when the stems have grown 2 or 3 inches tall.
From its creeping rootstocks short, sturdy, more or less widely branched stems arise.
But the young plants and even the young shoots when developing from the rootstocks under water comply with the above rule, producing very compound, finely and pectinately dissected leaves.
Multiplication in a vegetative way, by grafting and budding, by runners or roots, or by simple division of rootstocks and bulbs is the way in which to limit variability to the partial half.
The valerian is a perennial herb, multiplying itself yearly by [403] slenderrootstocks or runners producing at their tips new rosettes of leaves and in the center of these the flowering stem.
The long and thick rootstocks of the alpine plant bearing short stems only with a few dense corymbs contrasted markedly with the slender stems, loose foliage and rich groups of flowerheads of the lowland plant.
It is a perennial herb with short rootstocks and stout stems bearing numerous short-peduncled heads in large compact corymb; it multiplies itself abundantly by seeds and is very common on the sand dunes of Holland.
The rootstocks of the water-lily are sometimes dug from the bottom of the pond.
The adulterations sometimes met with are the rootstocks of related plants, and the skunk-cabbage is also occasionally found mixed with it, but this is probably unintentional, as the two plants usually grow close together.
But, instead of burning, the rootstocks may be saved and prepared for the drug market in the manner above stated.
Description of Rootstock--After they are dried the rootstocks have a grayish brown appearance on the outside, and the inside is hard and yellowish, either with a hollow center or a brownish or purplish pith.
Description of Rootstock--Not only have the plants of Aletris and Chamaelirium been confused, but the rootstocks as well.
The upper surface of the rootstock is covered with numerous round scars and stumps, the remains of former leaf stems, and on the fresh rootstocks may be seen the young, pinkish white buds which are to furnish the next season's growth.
Arrow-root proper is obtained from the rhizomes or rootstocks of several species of plants of the genus Maranta (nat.
A shy little woodland plant, from five to twelve inches tall, with creeping rootstocks and small, dry stipules.
There are several kinds of Hydrophyllum, perennial or biennial herbs, with fleshy runningrootstocks and large, more or less divided leaves, mostly alternate.
The creeping rootstocks are peppery and acrid, used medicinally, and considered exceedingly valuable by Spanish-Californians.
By the way, I always use wire hairpins to hold down creeping rootstocks of every kind; it keeps them from springing up and drying before the rootlets have a chance to grasp the soil.
As the rootstocksof both these are somewhat frail, I would advise you to peg them down with hairpins and cover well with earth.
Its long branching rootstocks are scarcely more than a line in thickness, sending up sterile leafy shoots and slender stems about a foot high.
In mellow soil the slender rootstocks spread extensively, and each year new sprouts spring up all around, six to eight feet distant.
Increased by division of the rootstocks about September.
Increase is effected by dividing the thickish rootstocksin spring.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "rootstocks" in a variety of sentences. We hope that you will now be able to make sentences using this word.
