BULLETIN 193. 



PRUNING THE SULTANINA. 



159 



more shoots on the fruit canes and the consequent production of more 

 bunches of grapes. At the same time the buds on the wood spurs are 

 forced to start, and not being shaded they tend to grow vigorously. It 

 is best to tie the shoots from the wood spurs in a vertical position to 



the stake, and they should not be topped. This is a modification of 

 what i known as the Guyot system of pruning, and is not only theo- 

 retically correct, but is easy to explain to pruners, and can be carried 

 out much more perfectly than the first method with ordinary labor. 

 Whatever system of winter pruning is adopted with the Sultanina, 



