REVIEW OF PRUNING AND TRAINING. 263 



with alternate single and double fruiting canes; tnis is 

 almost the alternate renewal, though at the first glance it 

 would be taken to be a strictly -enewal system. The cross 

 lines near the base of the upright canes will show where 

 they are to be pruned to keep up this plan. On the double 

 spur one of the canes is to be cut entirely away, and the 

 other to one bud, and the single cane is cut off at two buds, 

 and where there are now two canes, next year there will 

 be but one ; and the single cane of this season will produce 

 two canes the next, thus alternating each year. This plan 

 seems to be a very plausible one ; but when we come to try 

 it, we find that the spurs with two buds are inclined to 

 grow more rapidly than those with only one, for the simple 

 reason that the sap is drawn to that point with two-fold 

 greater power than to the single bud. If all were pruned 

 to one bud, then the sap would be drawn to all alike ; and 

 the same would be the case if all were pruned to any other 

 number, from one upward. A hint upon such points as 

 these will, I think, be sufficient, for it is a very easy matter 

 to try pruning a few vines upon both plans before fully 

 adopting either. 



REVERSING THE ARMS. 



There is an old German plan of laying down the arms, 

 which is quite the reverse of those we have shown. In- 

 stead of the right-hand cane being laid down to the right, 



Fig. 97. 



it is bent over to the left, and the left one is bent to the 

 right, as shown in Fig 97, the object being to check the 

 flow of sap, and cause the buds to break more evenly thaD 



