Apple Rootstock Info: Supporter 4

Apples January 05, 2015 Print Friendly and PDF

 

Characteristic Detail Description
Rootstock Supporter 4

Formerly selected as Pi 80 and resulted from a cross between M.9 and M.4. European reports indicate the vigor is similar to M.26 with good resistance to low temperatures, but susceptible to fire blight and it produced few root suckers. Supporter 4 is being tested in the 2002 NC-140 trial at nine locations with ‘Gala’ as the scion cultivar. After five years tree survival and tree size were similar to M.26 and it produced fewer burr knots and similar numbers of rootsuckers than M.26.  

Synonyms Supp 4
Origin M9 X M4
Availability Widely available
Tree Size 50-60% of standard
Precocity Early
Winter Hardiness Hardy
Suckering Very few
Tree Support Needed Yes
Where tested within NC-140 or other research plantings AR, BC, KY, MA, MI, NJ, NY, IL
 

 

Connect with us

  • Facebook

Welcome

This is where you can find research-based information from America's land-grant universities enabled by eXtension.org

LOCATE

Resources

Apple Rootstocks

  • All about understanding and choosing the right rootstock

Apple Cultivars

  • Characteristics, descriptions, and how to choose the best to grow and eat

Establishing an Apple Orchard

  • Buying and planting trees

Managing Apple Trees and Orchards

  • Insects, diseases, wildlife and other challenges

Propagating Apple Rootstocks and Trees

  • Grafting, budding, tissue culture, and all about how rootstocks are developed

Regional Resources

  • Links to apple information specific to your area

USDA / NIFA

This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.