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Figure 5. Starkspur Supreme Delicious on P.2 

 after 5 growing seasons (1984 planting). 



solely on data from one cultivar. It will contain 4 cultivars 

 (Golden Delicious, Jonagold, Empire, and Law Rome) 

 and 5 rootstocks (M.26 EMLA, M.9 EMLA, Mark, Ott.3, 

 and Bud.9) at ail cooperator locations. Cultivars to be 

 planted at some locations include Marshall Mcintosh, 

 Stayman, Red Yorking, Liberty, Jonathan, Chieftain, 

 Mutsu, Gala, and Granny Smith. Rootstocks which will be 

 planted at some locations include P.22 and M.27 EMLA. 

 With this planting we hope to evaluate cultivars of different 

 basic growth types on the most promising rootstocks to 

 give a better idea of how these rootstocks will perform. 



Proper selection of a rootstock will be a significant 

 factor in apple production in the future. The choice of the 

 most appropriate rootstock will depend on a number of 

 factors including cultivar, training system, soil, and time of 

 ripening. An unprecedented number of new rootstocks 

 presently are under intensive evaluation. The prominent 

 rootstocks of the future likely are among those being 

 tested. 



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Figure 6. Starkspur Supreme Delicious on C.6 (left) and M.26 EMLA (right) after 5 growing seasons (1984 

 planting). 



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15 



