BUDDING 



231 



Tomato and Nightshade just described, an explanation has been 

 obtained for some so-called graft-hybrids, one of note being the 

 Cytisus Adami which was produced many years ago by grafting to- 

 gether two shrubs, one having purple and the other yellow flowers. 



Fig. 212. • — • Layering of the grape vine. The vine has been bent to the 

 ground and covered. After Ferguson and Lewis. 



As a result of this graft and further grafting, shrubs having some 

 branches bearing purple flowers and others bearing yellow flowers 

 were obtained. Even a flower might be part purple and part yel- 

 low. For a long time some thought these strange plants were true 

 hybrids, but now we are quite sure that they are only chimeras. 

 Budding. — Budding is similar to grafting, the principal differ- 

 ence being in the character of the cion. In budding, instead of 

 twigs or branches, only a small strip of bark bearing a bud is used. 

 This strip of bark, which is cut so that it has cambium on its 

 inner face, is inserted into the young bark of the stock in such 

 a way that the cambiums can unite. A study of Figure 214 wUl 

 show how the bud is inserted. After a T-shaped cut is made in 

 the young bark of the stock, the bark on the edges of the cut is 

 lifted and the cion is slipped in, the lifted bark on each side 

 holding it in place. After the cion is in place, it is fastened more 

 firmly by wrapping strings around the stem just above and below 

 the inserted bud. Peaches are quite commonly propagated by 

 budding and sometimes Apples, Pears, and other fruit trees are 

 propagated in this way. 



