EXERCISE XXVII 



4* 



THE PRUNING OF THE GRAPE 



Material and apparatus. Small vineyard; priming-shears, 

 pruning-knife. 



Discuss in detail the pruning of the grape. Where are the 

 fruit buds found ? Do they occur on the present season's wood 

 or later ? Tell why it is advisable to prune the grape to three or 

 four buds. Does this method of pruning reduce the yield of 

 the crop ? Is it an advantage or a disadvantage to use this 

 method? Discuss. Describe in detail each of the following 

 methods : 



1. Renewal system of pruning. 



2. Marvin's system of fan pruning. 



3. Kniffin system of pruning. 



4. Y-trunk Kniffin system of pruning. 



5. Double Kniffin system of pruning. 



6. Overhead Kniffin system of pruning. 



REFERENCES : 



Bailey, " The Pruning Book," chap. viii. 



Bulletin No. 193, California Agricultural Experiment Station. 

 Circular No. 16, New York Agricultural Experiment Station. 

 Year Book of the Department of Agriculture, 1896, pp. 499-542. 



[88] 



