CHE REFERENCE LIBRARY - ZetaTalk

I’ROI’AGd 7’ZoiY IC 1’ HiiDDING AND GRAFTING 149thrown over to the right, forcing the knife into the stub. Thisis ii (‘aliforni;~n &+c. A very good grafting-knife for smallst\Icks or trer~s ill I~HW~,Y row is the Thomasknife shotvn in Fig. 17 1. The larger arm ismade entirely of wood. At its upper endis a grooved part, int.o which the bladecloses. This blade can 1x2 iiwde from asteel case-knife, md it should be about 2-&inches long. It is secured to an iron ha,ndle.The tssent.ial feature of this implement isthy (lril\v cut, which is obtained by settingt 1W 1 dil&‘S a1~t2 the pivot in just the positionshow11 ill the figure. The stock is cut01-f by the shears, and the cleft is thennlilde b>r turning the shears up and makingi1 vertical cut. TIw &ft, therefore, is cutinsteud of split, insuring a tightfit of tlw c&ns. This tool issaid t 0 1~ specially useful on Ehard ilnd c*rooked grained stocks.grafting-knife.III cleft-grafting, the c&s must3 be thrust downto the first bud, or even deeper, and it is imperativethat they fit tightly. The line of separationbetween the bark and wood in the cion shouldmeet as nearly RS possible the similar line in thestock. Tl le (ions 1’ a.re usually set a trifle obliquely,the t,ops projecting outwards, to insure the contactor crossing of the cambium layers. Writersofterl state that it is imperative to have theFIG. 17%Rooted grape exact. lines between the bark and wood meet forcutting cleft- at least t,he greater part of their length, but thisgrafted (x $).is an error. The callus or connecting tissuespreads beyond its former limits when the wounds begin toheal. The most essential points are rather to be sure that