Evaluation of Several Apple 

 Rootstocks in the 

 1984 NC-140 Planting 



Wesley R.Autio 



Department of Plant & Soil Sciences, University of Massachusetts 



New England apple growers have been 

 planting trees on clonally propagated rootstocks 

 for a number of years. Early plantings were 

 entirely on semidwarf and semistandard 

 rootstocks, usually M.7, MM. 106, or MM.lll. 

 During the 1970's, some growers experimented 

 with M.9 and interstem trees, and now, several 

 growers are using fully dwarf rootstocks. Until 



recently, plantings have used a relatively small 

 number of roots tock clones, because only a few 

 clones were available. Now several breeding 

 programs have released rootstocks for trial, in- 

 cluding the "Polish Series" from Poland, the 

 "Budagovsky Series" from Russia, the "Ottawa 

 Clonal Series" from Canada, the "Kentville 

 Stock Clone Series" from Canada, the "Michigan 



FruH Notes, Fall, 1993 



