For waxed twine, procure No. 18 knitting cotton and drop the balls into the melted wax for a minute or two or until the wax penetrates them.
Selection of Scions.
Great care should be exercised in the selection of scions for use in budding and grafting. Much of the immediate success of the work depends upon the character of the scions, while the health and longevity of the future tree may be materially influenced by the kind of wood used in propagating work.
The practice of taking scions and buds from young trees which have never borne, or from nursery stuck, must be strongly condemned. They should be cut only from thrifty, vigorous, prolific trees. Even trees of the same variety differ in these things, and a thorough knowledge of what a tree will do and has done is the only true guide in the selection of scions. It is a well-known fact that desirable qualities can be reproduced and perpetuated by grafting.
Fig. 19.
Scions: 1-3, Curtis; 4-6, Van Deman; 7-8, Stuart. 1. Poor Scions—long, slender, pithy. 2,4,5,7,8. Scions from one year's growth. 3. Scion, partly one, partly two years old. 6. Scion with cut, back of tip. 8. Scion which bore fruit at a.
Grafts should be selected from well-matured branches of one year's growth. Fig. 19, No. 1, shows an undesirable scion. The wood is angular, small, the internodes long, and the pith large in proportion to the diameter. Either terminal portions of twigs may be used or portions back of the tip, but the buds should always be well developed, full and plump—Fig. 19, Nos. 2 to 6. For this reason grafts should not be cut from wood far back from the tip of the branch. As stated, twigs of the previous season's growth are generally used, but scions composed partly of two-year-old wood may be used, provided the growth is not too large. Fig. 19, No. 3, shows one of these. Grafts are generally cut about five or six inches long, and should be from one-quarter to three-eighths of an inch in thickness.
It is best that the grafts be cut while still in a dormant state, and inserted in the stock just before the growth starts. The scions may be kept for a considerable length of time by placing them, loosely packed, in damp moss or sawdust, in a box. The box should be covered over with earth and the scions kept sufficiently moist to prevent drying out.
For bud sticks, well developed one-year-old branches, one-half to seven-eighths of an inch in diameter, and on which the buds are well formed, may be used. Such sticks frequently show three buds at a node, and if some misfortune should overtake one or two of these, there is still a chance of success, though the upper one being the strongest is generally the one which starts, provided it is uninjured and the bud takes. The degree of maturity of the bud is important, and care should be exercised that only those which are plump, full and well developed, are used. As soon as removed from the tree all bud sticks and grafts should be wrapped in damp newspapers to prevent drying out.