. Principles of plant culture; an elementary treatise designed as a text-book for beginners in agriculture and horticulture. Horticulture; Botany. 196 Principles of Plant Culture. 349. Propagation by Layers or Layering. The layer is an artificial stolon, i. e., a branch that does not naturally grow downward, which is covered with or surrounded by moist soil to stimulate the production of roots (88). The branch may be bent down and cov- ered, as is usually practiced with the grape, wistaria, etc., or the soil may be ridged up about the branch, as is done with the quince and paradise apple. In e
. Principles of plant culture; an elementary treatise designed as a text-book for beginners in agriculture and horticulture. Horticulture; Botany. 196 Principles of Plant Culture. 349. Propagation by Layers or Layering. The layer is an artificial stolon, i. e., a branch that does not naturally grow downward, which is covered with or surrounded by moist soil to stimulate the production of roots (88). The branch may be bent down and cov- ered, as is usually practiced with the grape, wistaria, etc., or the soil may be ridged up about the branch, as is done with the quince and paradise apple. In either case the terminal portion of the stem is commonly left uncovered. In the latter method, which is known as mound-layering, (Fig. 84), the stems of the plant to be layered are usually cut off Fig. 84. Mound-layering of just above the SUrface of gooseberry plants. (After Bal- lsy-) the ground in early spring, to stimulate the formation of vigorous shoots, which are ridged up about midsummer or preferably not until the succeeding fall or spring. The ridging should be sufficiently high to cover several of the lower nodes (115). Roots grow out at the nodes and the shoots are usually well rooted by the autumn following the ridging. Many woody plants that do not readily form roots when layered, may be induced to do so by. mutilating the stem somewhat in the covered part. This tends to restrict the growth current (79) and causes accu- mulation of reserve food, from which roots may grow. Girdling, twisting, bending or splitting the stem for a short distance will often have the desired effect (Fig. 85).. 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 Goff, E. S. (Emmett Stull), 1852-1902. Madison, Wis. University Co-operative Co.
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