Apple Rootstock Info: G.210

Characteristic Detail Description
Rootstock G.210

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.

Synonyms Geneva 210
Origin Ottawa 3 and Robusta 5
Availability Trial
Tree Size 60-65%
Precocity Early
Winter Hardiness Hardy
Suckering Low
Tree Support Needed Yes

Northeast Cider Conference

Northeast Cider Conference. Tuesday, March 24, 2020 to Thursday, March 26, 2020. Hilton Albany, NY.

Intended to meet the unique regional needs of the cider community in the Northeastern states, this conference will provide the opportunity to build your network, share knowledge, and learn from your fellow producers and growers. The inaugural NCC will allow for problem solving, priority setting and market development for makers operating at all levels of scale, and enhance the cider culture in the Northeast.
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Apple Rootstock Characteristics and Descriptions

Click on a rootstock to access characteristics and descriptions.

Dwarfing Rootstocks Semi-Dwarfing Rootstocks Standard Size Rootstocks
B.9 B.118 Antonovka 313
G.16 B.490 MM.111 EMLA
B.10 G.202 P.18
G.214 G.11 Seedling
G.41 G.210
G.65 G.30
G.935 G.890
M.27 G.969
M.9 J-TE-H
Mark M.4
Ottawa 3 M.27, M.9 (interstem)/
MM.106 rootstock
P.2 M.27,M.9(interstem)/
MM.111 rootstock
P.22 M.26
Supporter 1 M.7 EMLA
Supporter 4 MM.106 EMLA
V.3 V.1

Table of Apple Rootstock Susceptibility to Phytophthora spp.

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 …

Table of Juniper, Hawthorn, and Crab Apple Resistant to Rust Diseases

 

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’

'Golden Delicious' Necrotic Leaf Blotch in Apple Trees


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.
Golden Delicious apple leaves showing leaf blotch and yellowing associated with necrotic leaf blotch. Photo courtesy of T. B. Sutton, North Carolina State Univ. and A. L. Jones, Michigan State Univ.

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 …

Antique Fruit Cultivar Nurseries

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., …

What experimental rootstocks for apples are being looked at in the U.S.?

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, …