. A text-book of botany for secondary schools. Botany. 56 A TEXT-BOOK OP BOTANY bark. In this way old inscriptions have often been un- covered. The well-known operation of grafting depends upon the ability of plants to heal wounds. The plant upon -j which the operation is performed is called the stock, and the twig graft- ed into it the scion. An ordinary method, called cleft-grafting, is to cut off the stem or a branch of the stock, split the stump, insert into the cleft the wedge-shaped end of the scion, and seal up the wound with wax or clay. The cambiums of the stock and the scion must be
. A text-book of botany for secondary schools. Botany. 56 A TEXT-BOOK OP BOTANY bark. In this way old inscriptions have often been un- covered. The well-known operation of grafting depends upon the ability of plants to heal wounds. The plant upon -j which the operation is performed is called the stock, and the twig graft- ed into it the scion. An ordinary method, called cleft-grafting, is to cut off the stem or a branch of the stock, split the stump, insert into the cleft the wedge-shaped end of the scion, and seal up the wound with wax or clay. The cambiums of the stock and the scion must be put into contact at some point; and hence it is usual to insert a scion in each side of the cleft, since the cambium of the stock is comparatively near the surface (Fig. ). The cambium of stock and scion unite, the wound heals, and the scion becomes as closely related to the activities of the stock plant as are the ordinary branches. The scions are usually cut in the fall, after the leaves have fallen, are kept through the winter in moist soil or sand, and the grafting is done in the spring. A number of important things are secured by grafting, but chief among them is the perpetuation of useful varieties with certainty and at a great saving of time. (2) Monocotyledons.—In this great group of plants the vascular bundles of the stem are not arranged so as to form. Fig 55.—Cleft-grafting showing scions in .place (.4) and the wound sealed with clay or wax {B).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Coulter, John Merle, 1851-1928. New York, D. Appleton
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1906
