236 



MANUAL OF MODERN VITICULTURE. 



George. Only 15 per cent, of the grafts had made good 

 unions, and 12 per cent, of them showed imperfect unions. 



Tokay on Rupestris St. George 100 Champin grafts, 

 scions of two eyes. The unions were nearly all good and 

 strong. The average length of the shoots was 3 feet. The 

 grafts showed a finely-developed root system. with strong* 

 penetratin'g roots, which went directly down into the subsoil. 

 The percentage of well-developed grafts was 60, which is 

 better than the Zinfandel and Mondeuse with the same kind 

 of treatment. There were found only 6 per cent, of imper- 

 fect grafts. 



Ferrara on Rupestris St. George 100 Champin grafts^ 

 scions of two eyes. The unions of this lot were nearly always- 

 found to be well formed, and they were really the best unions 

 in the whole plot. All the shoots were more than 2 feet 

 long, many 3 feet, and a few even 4 feet. The root system 

 showed the same fine development and was fully propor- 

 tionate to the upper development of the grafts. 75 per cent, 

 of the grafts made perfect unions, and 9 per cent, made 

 imperfect unions. 



TABULAR REVIEW OF GRAFTING EXPERIMENTS. 

 Nature of Experiments. Proportion of Unions. Remarks. 



Champin grafts 

 English cleft grafts 

 Scions with two eyes 

 Scions \vith one eye 

 Grafts callused in sand 

 Grafts callused in straw 

 Grafts not callused ... 

 Zinfandel on Rupestris du 



Lot 

 Mondeuse on Rupestris du 



Lot 



Ferrara on Rupestris du Lot 

 Tokay on Rupestris du Lot 

 Rupestris du Lot as stock 

 Riparia Gloire de Montpellier 



as stock ... 

 Herbemont 

 Lenoir 

 Cunningham 

 American Rulander 

 Munson, rooted vines 

 America, rooted vines 

 Champini, rooted vines 

 Elvicand, rooted vines 



1st 

 Class. 



Per cent. 

 44 

 37 

 46 

 38 

 61 

 46 

 26 



2nd 

 Class. 



Per cent. 

 11 



6 Unions very complete. 

 13 



Unions weak. 

 Growth rather short. 



64 11 Good growth. 



54 

 75 



60 

 64 



10 

 9 

 6 



11 



Good growth. 

 Very strong growth. 

 Strong growth. 



