FERTILE AND STERILE GRAPES. 



ROF. S. A. Beach of Geneva 

 Experiment Station, has been 

 making a study of the self 

 fertility of the grape. It has 

 been noted that some varieties, when 

 planted alone, failed to set fruit. Barry, 

 Herbert, Brighton, Eumelan and some 

 other varieties, when set alone in vine- 

 yards, or in blocks remote from other 

 sorts, proved shy bearers, producing 

 only a few bunches of a straggling 

 character, cr were complete failures. 

 These same grapes, in vineyards not 

 favorably located, but composed of 

 mixed varieties, gave heavy yields of 

 large and compact bunches. The cause 

 of these results has been the subject of in- 

 vestigation for some time and has been 

 under experiment. One fourth of the 

 varieties have borne perfect compact 

 clusters in the bags ; more than one-third 

 produce clusters not quite perfect but 

 still marketable ; about one-sixth of the 

 varieties produce a few fruits, but not 

 large enough to produce salable 

 bunches ; and nearly one-fourth of all 

 tested produce no fruit whatever where 

 cross pollination is prevented. The 

 following is a list of classes 3 and 4, as 

 tested, which will not fruit well when 

 standing alone, and should therefore be 

 planted beside other grapes which 

 bloom at the same time. 



Class 3. Clustfrs Unmarketable.* 



Gold Dust 



Hayes 



Lindley 



Thompson, No. 7 



Vergennes 



Woodruff 



Adirondack 



Alexander 



Amber Queen 



Brighton 



Canada 



Daisy 



Denison 



Dracut Amber 



Eumelan 



Geneva 



Marion 

 Nectar 

 Noah 



Northern Musca- 

 dine (?) 

 Norwood 

 Pearl 

 Roenbeck 

 tRoss (Gov.) 

 Thompson, No. 5 



Class 4. — Self-Sterile. No Fruit De- 

 velops on Covered Clusters* 



Amber (?) Hercules 



America Jewel 



Aminia Juno 



Barry Massasoit 



Black Eagle Maxatawney (?) 



Blanco Merrimack 



Burnet Montefiore 



Creveling Oneida 



Dr. Hexamer Red Bird 



Eaton (?) Red Eagle 



Eldorado Requa 



Elvibach Rogers No. 5 



Essex Roscoe 



Faith (?) Salem 



Gsertner White Jewel 



Grein Golden Wilder 



Herbert Wyoming 



The method used was simple but the 

 amount of work required great. Vines 

 of the different varieties in apparently 

 healthy, productive condition were 

 selected, and two or more well formed 

 flower clusters on each vine were in- 

 closed, before the flowers opened, in 

 manila paper bags, as shown in the 

 figures. When the flowers open, as 



Fiu. 1647- Bag in position open. 



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