. Plant propagation : greenhouse and nursery practice . Plant propagation. 250 PLANT PKUPAGATION humid atmosphere for perhaps a week. Wax is thus dis- pensed with; indeed, it is thought to be a detriment. Some propagators bind moss around the wounds, but there is likelihood that roots will develojD as in pot layer- ing and the parts fail to knit together unless they are first bandaged. It is possible to graft shrubs and trees while the shoots are herbaceous, but this plan is not popular. Conifers (pines and spruces), and some de- ciduous trees (walnut) are occasionally saddle or cleft grafted
. Plant propagation : greenhouse and nursery practice . Plant propagation. 250 PLANT PKUPAGATION humid atmosphere for perhaps a week. Wax is thus dis- pensed with; indeed, it is thought to be a detriment. Some propagators bind moss around the wounds, but there is likelihood that roots will develojD as in pot layer- ing and the parts fail to knit together unless they are first bandaged. It is possible to graft shrubs and trees while the shoots are herbaceous, but this plan is not popular. Conifers (pines and spruces), and some de- ciduous trees (walnut) are occasionally saddle or cleft grafted in mid to late spring, bound with waxed cheese- cloth and shaded with manila FIG. 200—UNCOMMON METHODS OF BLDEHNG A, annular or ring; b, terminal; c, plate; d* H-budding; e, flute; f, prong; g, chip. Experiments at Cornell University have shown that the wood must be somewhat hardened to secure best results. Soft, flabby shoots are likely to be injured in the operation, and the union does not occur readily. Cleft and veneer styles were most satisfactory. In most cases it is necessary only to bind the parts with raffia. 325. Grafted potatoes.—E. Laurent, a Belgian investigator, grafted light and colored flesh potatoes on each other by various methods, but after three years of experimenting found no color from a violet variety in the tubers of the light-fleshed stock. 326. Grafting beets has been experimentally done to increase the seed yield of desirable varieties. The mother beet root is sprouted. When the off-sets at the crown are about three-fourths inch long they are removed witli some of the flesh and inserted in new beets just below the crown, in cuts corresponding to the form of the cions. In one experiment 48 off-sets were secured from one "mother" and 31 of these grew into first-class plants, each of which yielded a normal amount of Please note that these images are extracted from scanned page images that may have been digitally enhanced for
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