Table 3. Cumulative yield efficiency (1992-96) at the end of the 1996 growing season. 



Cumulative yield efficiency (kg/cm^ trunk cross-sectional area, 1992-96) 



Rootstock 



Golden 

 Delicious Jonagold Empire 



Ror 



Average 



to make to use this combination is adjustment ated with Mark. In this study, rootstock did not 



of planting distances. 



Tlie rootstock that stands out in this trial is 

 B.9. It performed similarly well with all scions. 

 Yield efficiency was as high or higher than 

 Mark, without many of the problems associ- 



affect fruit size, but in other trials, B.9 has 

 resulted in larger-than-average fruit. It 

 certainly is a rootstock worthy of significant 

 grower trial, and it is available commercially in 

 significant quantities. 



•JL» vT^ •X* •^ •J^ 



•^ W^ 0^ 0^ •^ 



Fruit Notes, Volume 6.^ (Number 1), Wimcr, 1998 



