Fire Blight-Resistant Apple Rootstocks
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1 Fire Blight-Resistant Apple Rootstocks Terence Robinson, Gennaro Fazio, Herb Aldwinckle Dept. of Horticulture, Cornell University Geneva, New York, USDA-ARS, Plant Genetics Resources Unit, Geneva, NY 14456
2 Fire Blight Infection of Rootstocks is a Major Problem in the USA Infection of susceptible rootstocks results in the death of the tree Infection
3 Fire Blight Limits Planting of New Varieties The high susceptibility of new varieties such as Pink Lady and Jazz make it difficult to plant new orchards on M.9 rootstock. With a fire blight-resistant rootstock, when the tree is infected the tree survives and the infected branches can be quickly re-grown.
4 The Geneva Apple Rootstock Breeding and Development Program Cornell University Program Dr. James Cummins and Herb Aldwinckle Joint Program with USDA and Cornell University (1998-present) Dr. Gennaro Fazio, Herb Aldwinckle and Terence Robinson Goal: Produce a series of rootstocks which are resistant to important rootstock diseases and insects that are dwarfing, productive and efficient. Resistance to fire blight Resistance to Phytopthora root rot Resistance to woolly apple aphid Cold tolerant Resistant to apple replant disease.
5 Geneva Apple Rootstock Breeding Team: Gennaro Fazio James Cummins Terence Robinson Herb Aldwinckle
6 Breeding New Apple Rootstocks Crosses are made with bees Seed is harvested (5,000 per year) Seedlings are inoculated with Phytophthora and Fire blight (95% are killed) Rootstocks are budded and tested in the field
7 Rootstock Evaluations at Geneva: In the greenhouse Fire blight Phytophthora Wooly apple aphid In the nursery Spines Rooting In the orchard Survival Tree size Yield efficiency Fruit size Suckering Tolerance to fire blight Tolerance to replant disease Graft union strength
8 III DNA Fingerprinting: The Geneva rootstocks are a distinct genetic group from most commercial rootstocks M.9 or Malling Cluster R II MM.111 MM.106 PiAu5683 M.13 M.7 P.14 P.18 PiAu5111 J-TE-C V.1 M.27 G.65 M.11 M.3 M.10 M? J.9 Pi80 G.41 M.9T337 B.118 PiAu514 M.26 M.25 V.7 M.8 J-TE-G M.20 V.2 G.202 B.9 G.11 O.3 P.1 G.30 JM.10 B.491 G3007 G.935 G Novole 0.29 M.2 G.16 NAGA Maruba Alnarp M.4 G3007 G.935 O.3 G5179 G.202 G.30 G.11 B.9 M.8 M.20 J.9 JM.10 J-TE-G Pi80 M.9 M.9T337 V.2 M? P.1 P.14 G.16 V.1 G.41 M.27 G.65 M.10 M.13 M.26 Alnarp PiAu514 M.1 M.2 M.4 M.11 M.3 PiAu5683 M.7 PiAu5111 P.18 R.5 V.7 J-TE-C M.25 MM.106 MM.111 B.491 B.118 Maruba NAGA Novole PiAu5111MW Coefficient II Commercial Apple Rootstocks 0.72 Represent a Very Restricted Gene Pool
9 Ottawa 3 X Robusta 5 Pseudotestcross Map E36M50_ CH05g E36M62_ Hi07d Hi12c KA4B 47.8 E36M50_ E35M47_ E35M50_ Hi05c06_ Hi02c E38M48_ Hi02b Hi05c06_ LG01 CN CH02c02a_3 8.1 Hi02a CH02c02a_ CH02c02a_ E35M48_ E41M50_ NZ03c01x_ E40M60_ E38M48_ E40M60_ E40M62_ E36M62_ Hi05c06_ E40M50_ E38M47_ CH02c CH03d10 CH02a04z 49.3 E35M47_ E38M50_192 AE01_ CH05e MalRoot1512_ E35M47_ CH03d E40M60_ E36M62_ E35M48_ E36M47_ LG02 E38M47_ E35M50_ CH03e E35M50_ E35M47_ CH03g E38M49_ E38M59_ E35M47_ E38M49_ E33M47_ E38M50_ E40M50_ E36M62_ E36M47_ E38M47_ E35M48_ Hi04c10x_ E38M49_ E38M50_ E37M48_ E35M48_ E40M60_ AU Hi04c10x_ MalRoot439_ E37M62_ E36M50_ Hi07e08x 83.1 E37M48_ E37M47_ HGA8bY 98.2 LG03 E40M62_ E36M62_ CH04e E36M62_ AC17_ GD154_ E40M62_ E40M47_ E41M48_ E38M50_ GD Malus_ CH05d E38M48_ E33M48_ GD6_ E40M48_ Hi04c10x_ E37M49_ E36M50_ Hi07b02_ E37M48_ E37M47_ E38M47_ E36M50_ D11_ E37M47_ C CH02c06b E41M50_ LG04 E36M47_ MalRoot4870_1_ E38M50_ Malus_ E37M47_ CH03a GD154_ CH05e CH04g09y 52.5 Hi21c P15_ A E40M50_ E38M50_ E37M47_ E38M50_ Hi04d E37M62_ GD E37M62_ Hi11a E40M60_ CH03a E38M48_ CH04e CH02a08z 87.7 E36M47_ E38M50_ E38M59_ E38M48_ E35M50_ LD_T_ E38M47_ E38M50_ CH01c06_ E33M47_ CH04h02_ E38M59_ CH04h02_ LG05 E33M47_ AE01_ AA11_ E33M47_ E40M60_ NZ03c01x_ E36M50_ E35M48_ E33M47_ E38M49_ CH03d E40M48_ F09_ E35M48_ E38M47_ Hi01d Malus_ CH03d E35M47_ E38M50_ E33M48_ E35M50_ Malus_2950_2_ Malus_2950_1_ Malus_2950_1_ AJ Malus_ Malus_2950_1_ Malus_ CH03c NR1_E03_ LG06 MalRoot175_1_ E35M50_ E38M48_ E38M59_ E36M50_ E37M48_ E40M47_ E36M50_ CH05b06z_ Hi04c10x_ CH04e C E35M48_ E40M62_ E40M47_ MalRoot452_ D08_ E38M49_ E40M48_ E37M62_ CH03h03z_ E38M49_ E40M62_ E38M47_ K1_G01_ E38M49_ E38M59_ E38M50_ E40M47_ E40M48_ E36M62_ E37M48_ Malus_ Hi05b E40M47_ LG07 E33M47_ E38M49_ Malus_ NF2_H Hi04b CH01c06_ CH02g E38M48_ E36M47_ E40M60_ E38M48_ E35M50_ E37M49_ E35M47_ E38M49_ E38M59_ E38M59_ Malus_2950_1_ Hi23g E35M48_ E37M48_ Hi04e E33M48_ E38M47_ E33M47_ E37M49_ E37M49_ E40M48_ E36M62_ E37M62_ E35M48_ E33M47_ LG08 CH04c06y_3 0.0 E38M49_ GD E38M49_ E33M48_ E40M60_ NH029a 36.9 E40M62_ E38M50_ E41M48_ CH05c Hi05e E38M48_ E35M47_ E38M59_ CH01h02_ CH01h02_ Hi01d E41M48_ MalRoot831_ E40M60_ GD158_ CH05d08y_ E38M59_ E38M48_ E33M48_ E38M48_ E38M47_ E36M50_ E35M50_ E35M47_ E35M47_ E35M50_ LG09 E36M62_ Malus_ MS06g CH02b03b 16.8 CH01f07a 17.0 MS02a E38M48_ GD158_ E38M59_ D03_ E33M47_ E38M47_ E41M50_ E40M62_ NR1_F02_ CH02c CH01f E33M48_ E37M49_ CH02a E38M49_ E38M48_ E38M49_ E35M48_ Hi04f CH04c06y_ E33M48_ CH02b Hi02d E37M48_ G09_ LG10 E41M48_ E36M50_ CH04h02_1 9.8 CH04h02_ MalRoot439_ E35M48_ E36M62_ E35M47_ E37M48_ CH02d E36M47_ E38M48_ E38M50_ E38M47_ E40M48_ E38M47_ E38M49_ E37M48_ CH04g Hi06b E37M48_ LG11 E40M48_ CH05d E41M48_ E35M50_ NZ28f E35M50_ CH05d E38M59_ E37M48_ E38M50_ E35M48_ CH01g GD6_ MalRoot452_ E37M48_ CH01f E38M50_ E38M49_ E37M62_ E38M50_ E37M62_ E35M48_ E36M62_ E40M62_ CH01b12y 63.8 E41M50_ E38M59_ LG12 CH05h E41M48_ Hi07b02_ AU CH05c06_ E35M50_ Hi07b02_ GD GD E35M50_ NH009b 45.0 Hi20b Hi03e E35M48_ E35M48_ E37M49_ CH03h03z_ CH05f04 E35M50_ CH03a E40M47_ E35M47_ C E38M50_ E35M50_ E38M48_ E35M48_219 E40M62_ E35M50_ E38M49_ E36M50_ E38M48_ G17_ E41M48_ E41M50_ E35M48_ E36M62_ MalRoot5915_2_ E35M47_ E35M47_ Hi05c06_ GD154_ NZ03c01x_ LG13 E37M49_ GD E37M62_ E40M48_ E35M47_ E37M47_ E37M47_ E33M48_ CH01g CH03d E38M48_ E37M49_ E41M50_ E37M47_ CH05g07z_ E37M62_ E40M47_ E38M48_ E40M47_ CH03a E36M62_ E35M50_ CH05g07z_ E38M47_ Malus_2950_1_ Malus_2950_2_2 Malus_2940 Malus_2950_1_ MalRoot452_ LG14 Hi02g E33M47_ E38M59_ E38M48_ CH02c02a_ E33M47_ Hi06f E33M48_ E38M47_ E35M50_ E40M48_ CH02d CH03b E36M62_ NZ02b E38M59_ Hi04c E35M47_ E40M60_ E33M48_ G1_F08_ E36M62_ E38M48_ E37M48_ CH02c E36M50_ LG15 E38M47_ CH02d10a 5.2 C11_ CH05b06z_ CH05c06_ CH01f E35M50_ NH007b 29.5 Hi04e E38M59_ E38M50_ CH05a GD154_ E41M50_ E36M62_ CH04f Hi01c11x 77.9 Hi01d06y 80.0 E36M62_ E37M48_ E41M50_ E35M47_ E35M50_ E38M49_ E38M50_ E40M47_ E37M47_ E37M49_ E40M48_ LG16 CH04c06y_2 0.0 E38M47_ Malus_ CH05g E38M50_ E33M48_ CH01h GD GD Hi07b02_ Hi07b02_ Hi03c05_ E40M60_ E40M47_ E38M50_ E38M47_ Hi05c06_ S_allele 83.9 E33M48_ CH05d08y_ E33M48_ C19_ E38M49_ E40M62_ LG17 Map for Marker Assisted Breeding DWARFING Powdery Mildew Wooly Apple Aphid Apple Scab More Dwarfing? Precocity?? Replant Resistance?? Root Morphology
10 Released Geneva Apple Rootstocks Arranged by Tree Size M.7-MM106 Size Seedling Size M.27 Size M.9 T337 M.9 PAJ 2 M.26 Size G.65 G.11 G.41 G.935 G.202 G.30 G.16 G.214 G.969 G.210 G.890 G.222 G.213 New Releases
11 The Geneva rootstocks are much more resistant to fire blight than most other rootstocks.
12 Rootstock Blight Development after Inoculation of Gala Trees on Various Rootstocks
13 Tolerance of Geneva Rootstocks to Fire Blight Inoculation and Natural Infection (Norelli, et al. 2002) % Tree Death due to Fire Blight Rootstock Inoculation Natural Infection M.26EMLA M M MM.111EMLA 8 15 G G G G
14 Sensitivity of Various CG Rootstocks to Different Strains of Fire Blight % of Shoot Infected Rootstock Ea273 EA2002 E4001a E2017p G G G G G G M.7EMLA M.9EMLA M.26EMLA
15 Summary of Fire Blight Inoculation Trials G.16, G.41, G.214 and G.202 are highly resistant to field inoculations of the scion with a high dose of fire blight but may not be resistant to all strains of fire blight. G.11, G.65 and G.935 are moderately resistant to field inoculations of the scion with fire blight.
16 Performance of McIntosh with Geneva and Supporter Rootstocks after 10 years (B&D Plot)
17 Performance of Golden Delicious with Geneva Rootstocks after 8 years (Cahoon Plot)
18 Performance of Gala with Geneva, Supporter, JM and PiAu Rootstocks after 7 years (Han 15 Plot)
19 M27 CG2034 CG4202 JM4 CG4088 CG5757 CG2406 CG2022 CG5030 CG11 M9 CG3007 PiAu5111 CG4003 CG6874 CG4214 M26 JM10 CG4004 CG7480 CG4019 CG4049 CG6969 CG5087 CG5202 CG8534 CG4814 JM1 CG4011 CG5935 CG6006 CG5257 MM106 CG5012 M7 CG6210 CG6879 CG8189 PiAu514 PiAu568 CG6976 B118 CG5890 CG6001 CG6253 CG4013 JTEB JM2 CG4213 JTEC CG5463 CG6589 CG6024 Trunk X-Sect. Area (cm2) Yield Efficiency (kg/cm2tca) Performance of Fuji with 53 Rootstocks after 4 years (Crist Bros. Plot)
20 Propagation of Geneva Rootstocks Several Geneva Rootstocks root poorly in the stoolbed. We are conducting research to improve stoolbed performance - Regalis treatment of stoolbed - Tissue Culture to induce greater juvenility in stoolbed - Tissue Culture plants as rootstocks
21 Micropropagation of Geneva Rootstocks ProTree Nursery Micropropagation Lab - Rooted acclimated plants G.935 Rooted G.41 plants at NA-Plants Shelves full of G.41 plantlets at North American Plants
22 Rooting of G.41 Apple Rootstock from tissue culture plants
23 Rows of Commercial G.41 rootstocks
24 Propagation by Cuttings is Expanding Typical Rooting of G.41
25 Additional Rootstock Studies Uptake of mineral nutrients Drought tolerance Root architecture QTL mapping of root characteristics
26 Geneva Rootstock Commercialization in North America Propagation licenses held by: Treco Willow Drive Nursery Willamette Nursery Copenhaven Mori Nursery (Canada) Consortio Sacramento (Mexico) Others in the future Rootstocks being commercialized G.11 G.41 G.214 G.935 G.202 G.30 G.969
27 G.11 Tree size similar to M.9 T337. Very high yield efficiency Large fruit size Tolerant to Replant Disease Resistant to Fire Blight but not immune. Resistant to Crown Rot Susceptible to Wooly Apple Aphid Good rooting in stoolbed Geneva 11 M9-T337 Courtesy of Stefano Musacchi
28 M.9 vigor Very high yield efficient Highly productive Very precocious Resistant to replant disease Very cold hardy Does well in warmer climates (Mexico) Highly Resistant to Fire Blight and Crown Rot and Wooly Apple Aphid Requires tissue culture mother plants for stoolbed G.41 G.41 Fuji CIV 2008
29 G.214 Vigor similar to M.9 Pajam2 Highly yield efficient Highly productive Good precocity Tolerant to replant disease Resistant to Fire Blight, Crown Rot and Wooly Apple Aphid Very good stool bed propagation No commercial production of liners. G.214 Washington
30 G.935 Vigor intermediate between M.9 Pajam 2 and M.26 Very high yield efficiency Very cold hardy Resistant to Replant Disease Resistant to Fire Blight and Crown Rot Susceptible to Wooly Apple Aphid
31 G.202 Size similar to M.26 Precocious, productive Resistant to woolly apple aphid, fire blight, and crown rot Tolerant to apple replant disease Good choice for weak growing cultivars like Honeycrisp Moderate rooting in stoolbed G.202 New Zealand
32 G.210 Vigor between M.7 and MM.106 Precocious, productive Yield efficiency similar or better than M.9 Resistant to apple replant disease. Resistance to woolly apple aphid, fire blight, and crown rot. Good rooting in stoolbed few spines. Mostly for Organic Production G.210
33 Liners Production (number) Geneva Rootstock Liner Production in the USA 1,200,000 1,000, , ,000 G.11 G.41 G.935 G.16 G.30 G.202 Total CG 400, ,
34 Geneva Rootstock Commercialization in Europe Propagation licenses held by: Janssen (Netherlands) DL (France) Castang (France) CIV (Italy) Others in the future Rootstocks being commercialized G.11 G.41 G.214 G.935 (Weak varieties) G.202 (Weak varieties or Organic) G.210 (Organic) About 20,000 liners of G.11 and G.41 in 2012
35 Released Geneva Apple Rootstocks Arranged by Tree Size M.7-MM106 Size Seedling Size M.27 Size M.9 T337 M.9 PAJ 2 M.26 Size G.65 G.11 G.41 G.935 G.202 G.30 G.16 G.214 G.969 G.210 G.890 G.222 G.213 New Releases
36 Questions? Fuji/G/41 Fuji/G.214
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