242 



EXPERIMENT STATION RECORD. 



Tabular review of grafting experiments. 



Nature of experiment. 



(^hampin grafts 



English cleft grafts 



Scions with two eyes 



Scions with one eye 



Grafts callusefl in sand 



Grafts callused in straw 



Grafts not callused 



Zinfandel on Kupestris 8t. George 



Mondeiise on Rupestris St. George 



Ferrara on Rupestris St. George 



Tokay on Rupestris St. George 



Rupestris St. George as stock 



Riparia Gloire de Jlontpellier as stock 



Herbemont 



Lenoir 



Cunningham 



American Rulander 



Miinson, rooted vines 



America, rooted vines 



Champini , rooted vines 



Elvicand, rooted vines 



"The figures in the above table must not be taken as representing the exact relative 

 values of the various methods and varieties compared, ])ut . . . may be considered as 

 valuable indications." 



Relative to the influence of the scions on the growth of the grafts, 

 the authors state as follows: 



"The Mondeuse, though cjuite satisfactory, gave a smaller percentage of success- 

 ful grafts than any of the others. They started later than the Zinfandel, and, though 

 the growth and root system were somewhat stronger, the wood was not quite so well 

 matured. The Zinfandel did very well, giving 64 per cent of good grafts and making 

 good growth. The black Ferrara, however, made almost phenomenal growth and 

 yielded 75 per cent of first-class unions. The growth of the Tokay was almost equal 

 to that of the Ferrara, but the number of successful grafts rather less — 60 per cent." 



The harmful results following- neglect in cutting the rafiia or other 

 binding material or not trimming away the roots put out by the scions 

 is illustrated by photographic I'eproductions of several deformed 

 specimens. 



The experiments in rooting 580 cuttings of Rupestris St. George, 40 

 of Riparia Gloire de Montpellior. and 4.5 of Solonis resulted in 83 per 

 cent of well-rooted vines in the lirst instance and 80 in the second. 

 Botanical descriptions are given of these 3 most promising resistant 

 stocks for use in California, and the dift'erence in character of their 

 root systems is illustrated. 



Some of the conclusions of the authors relative to the results of the 

 whole work are as follows: 



"A cutting graft of suitable varieties makes as large and vigorous growth as a 

 simple cutting, so that by the method of iH-nch grafting no time is lost in estal)lishing 

 a resistant vineyard. 



"Resistant varieties which are difficult to root Imt easy to graft when old, such as 

 Lenoir, should not be bench grafted. 



"Care in callusing, planting, and treatment in nursery, and especially in keeping 



