G.210 is a semidwarfing rootstock that is resistant to fire blight (Erwinia amylovora) and crown rot (Phytopthora spp.). It is a hybrid from a cross between and is larger than Ottawa 3 but smaller than Robusta 5. It is similar in size to Malling 7 but more productive and precocious.
|Origin||Ottawa 3 and Robusta 5|
|Tree Support Needed||Yes|
Northeast Cider Conference. Tuesday, March 24, 2020 to Thursday, March 26, 2020. Hilton Albany, NY.
Click on a rootstock to access characteristics and descriptions.
|Dwarfing Rootstocks||Semi-Dwarfing Rootstocks||Standard Size Rootstocks|
|Ottawa 3||M.27, M.9 (interstem)/
|Supporter 1||M.7 EMLA|
|Supporter 4||MM.106 EMLA|
Apple Phytophthora root, crown, or collar rot has caused extensive death of apple trees in many eastern orchards during the past two decades. It often occurs on trees between 3 and 8 years of age grown on Malling-Merton 104 (MM.104), MM.106, and, to a lesser degree, MM.111 rootstocks. The disease often affects low areas of orchards having heavy, poorly drained soils, but it can affect all orchard sites if trees are first infected in the nursery. This table illustrates susceptibility …
Cedar-apple rust is a fungus disease of apple and cedar and spends parts of its life cycle on each host. It is caused by Gymnosporangium juniperi-virginianae. The fungus can infect leaves and fruit of most cultivars in the eastern region. This table lists juniper, hawthorn, and crab apple cultivars with resistance to rust diseases.
|Juniperus (Juniper)||Crataegus (Hawthorn)||Malus (Crab Apple)|
|Cedar-apple and hawthorn rust resistant||Cedar hawthorn rust resistant||Cedar hawthorn rust resistant|
|J. ashei||C. crus-galli||‘Adams’|
|Figure 1. ‘Golden Delicious’ apple leaves showing leaf blotch and yellowing associated with NLB. Photo: T. B. Sutton, North Carolina State University, and A. L. Jones, Michigan State University.|
Necrotic leaf blotch (NLB) is a physiological disorder whose occurrence is related to air temperature, light intensity, and soil moisture. The cause of NLB of apple is not known. Symptoms that are enhanced by gibberellins and reduced by abscisic acid are evidence that a hormonal imbalance may be involved. The disorder …
Big Horse Creek Farm, PO Box 70, Lansing, NC 28643 http://www.bighorsecreekfarm.com/
Boyer’s Nursery and Orchards, RD 2, Biglerville, PA 17307 http://www.boyernurseries.com/
Fedco Trees, PO Box 520, Waterville, ME 04903 http://www.fedcoseeds.com/trees.htm
Moser Fruit Tree Sales, 5329 Defield Rd., Coloma, MI 49038 http://www.forfruittrees.com/
Southmeadow Fruit Gardens, PO Box 211, Baroda, MI 49101 http://www.southmeadowfruitgardens.com/
Trees of Antiquity, 20 Wellsona Rd., Paso Robles, CA 93446 http://www.treesofantiquity.com/
Vintage Virginia Apples, PO Box 210, North Garden, VA 22959 http://www.vintagevirginiaapples.com/
White Oak Nursery, 2515 White Oak Rd., …
Many apple rootstocks are being evaluated for potential use in the United States by the NC-140 Multi-State Research Committee. These rootstocks have come from breeding programs in the United States (CG, G), Great Britain (M), Germany (PiAu and Supporter), Poland (P), Czech Republic (J-TE), Japan (JM), and Russia (B). Specific rootstocks that are currently under evaluation in NC-140 plantings include the following: B.9, B.10, B.7-3-150, B.7-20-21, B.67-5-32, B.64-194, B.70-6-8, B.70-20-20, B.71-7-22, G.11, G.16, G.41, G.202, G.935, CG.2034, CG.3001, CG.4003, …