14 
BULLETIN 1215. U. S. DEPARTMENT OF AGRICULTURE. 
by bench and field grafting. While Held grafting is somewhat 
slower than bench grafting, a better stand is obtained, and when 
one considers the labor involved in digging the stocks and putting 
them back into the ground when they are bench-grafted, plants can 
be secured at less cost per plant by field grafting. Where the plants 
are to be bench-grafted they can be dug in the fall and heeled in 
at a convenient place. The scions can be cut at the time the grafting 
is done. The wood (fig. 5, a) used for this work should be the past 
season's growth. It should not be much smaller than a lead pencil, 
as smaller wood does not produce suitable plants. The small side 
Fig. 5. — Top of a jujube tree which has been cut back, showing new growth, small 
lateral branches, and spines, o. Wood suitable for propagation ; b, twig too small to 
be used in propagating; c, new branches resulting from cutting back the main branch. 
branches (fig. 5, b) which bear the leafy deciduous branches are 
not suitable for scions. The grafting should be done one to two 
months before the plants are to be put in the nursery. After the 
grafl has been made it should be carefully tied with raffia, waxed, 
and allowed to callus in damp shingle tow or moss in a place 1 where 
the temperature is 40° to 50° F. In about three to eight weeks the 
callusing will have progressed sufficiently to allow the plants to be 
-ct out in the nursery. When the weather is suitable the plants 
should be lined out in nursery rows, and care should be taken to see 
thai the stock and grafts are completely covered with soil. The soil 
