Resulted from a cross of M.9 x Common Antonovka and released Research Institute of Poland in Skierniewice, Poland. This is a very dwarfing rootstock, producing trees similar in size to M.27. Trees have good winter hardiness, and produce few burr knots and rootsuckers. It is moderately susceptible to fire blight and very susceptible to woolly apple aphid, and has good resistance to crown and root rots. P.22 is very precocious, has higher yield efficiency than M.9, and requires support. P.22 was tested by the NC-140 at a number of locations with ‘Gala’ as the scion variety. Tree survival was good except in the southeastern U.S. Tree size is only 30 to 50% as large as trees on M.9 NAKBT337 and is probably too dwarfing for most commercial situations, but may be good for home gardeners looking for very small trees (less than 6’ tall).
|Where tested within NC-140 or other research plantings
||AR, BC, CA, CO, IA, IL, IN, MA, MI, MN, NC, NY, OH, OR, PA, UT, VA, WA, WI, KS, ME, MO, NJ, TN, WV