10 BULLETIN 856, U. S. DEPARTMENT OF AGRICULTURE. 
with the work of ringing, the vines need to be trained to carry them- 
selves without support at the age of fruiting. If stool pruning to 
fairly high heads is not practicable 
and no better way is found, the same 
purpose may be accomplished by 
pruning so as to leave the canes long 
enough to permit bending and tying | 
to form a self-supporting circle, as . 
shown in figure 2. | 
Experiments are now being made 
to determine the methods of pruning. 
training, and culture necessary for | 
the best results. It would be an easy 
matter, of course, to select a trellis 
system of training that would adapt | 
itself to the growing of the currant- P, 
; 
+) 
ue 
lic. 1—A grapevine pruned to canes. ] ae 
grape varieties 1f it should be p18 
determined that it is best to ipa 
prune them long and train Re 
them to a trellis, as is recom- ete 
mended in California Experi- i * 
ment Station Bulletin 298. ae cae 
: Ss Fic. 2.—A grapevine pruned to long canes, 
éé ‘ - 
entitled The Seedless Raisin the canes afterwards being bent in a circle 
Grapes.” as a support. 
RINGING THE VINES. 
It has been found that in order to make the blooms set and secure 
full yearly crops of grapes the vines must be ringed every year. 
