Maine Potato Breeding Program

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Maine Potato Breeding Program

• Gregory Porter, Paul Ocaya, and Tammy Mills,
  University of Maine, Orono

Examples reds and specialty clones
New 60-hill seed plots 3rd-year clones
2nd-year russet selections, 2010
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University of MainePotato Breeding Program

• Research Effort by Type
• 60 russets and long-whites, processing and
  dual-purpose
• 30 round types for chipping and/or fresh use
• 10 reds and specialty types

Greenhouse Crossing
2011 crosses produced 25,000 true potato seed
(TPS) from 61 different families
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University of MainePotato Breeding Program

• Top Priority Disease Resistance Goals
• Late blight resistance
• Scab resistance
• PVY resistance
• Pink rot resistance
• Others PLRV/NN, EB, VW, GN, Fusarium, etc

Resistance Screening Plots, Clockwise from top
late blight, PLRV, PVY
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Selection of Late Blight Resistant Potato
Varieties

• 2011 Aroostook Research Farm
• Non-inoculated
• 45 test clones, 9 standards
• 18 were MR to R
• 2011 Penn State
• Inoculated
• Replicated, 45 test clones, 17 were MR to R
• Single Replication, Observation, 77 of 215 were
  MR to R

AF3317-15
Katahdin
2011 Late Blight Resistance Screening
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2011 Seedling Tuber Production
65,420 greenhouse seedling tubers were produced
at Aroostook Research Farm 25,898 A tubers (ME)
from 115 families 22,896 B tubers (to ID,
CO) 16,626 C tubers (to WI, ND)
Seedlings produced from true potato seed
Seedling Tuber Harvest, 2010 Liza Buck, Megan
Ireland, Karlee Bernier, Chandler Guerrette,
Samantha Fuller, Carol McKnight
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2011 Field Selection in Northern Maine

• 45,244 single-hill plots were evaluated
  consisting of seedlings from ME, ID, WI, ND
• Selected for further evaluation in 2012
• 480 russets and long-whites (40)
• 545 whites, yellows, and chippers (46)
• 161 red- and purple-skinned (14)

Field Selection in Northern Maine
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University of MainePotato Breeding and Variety
Development
Disease, pest, and quality screening
NCPT, NFPT, NE1031 Other Multi-site testing
GH Crosses produce TPS
GH Seedlings produce seedling tubers
1st Field Season Single-hill plots 45,000
clones
2nd Field Season 8- or 12-hill plots 1,200
clones
3rd Field Season New 60-hill plots 300 clones
4th Field Season 100-hill plots 75 clones
5th Field Season 300-hill plots 35 clones
NC, FL, NY early selection
Cooperator Selection
MSPB or elsewhere Clean-up Pre-nuclear
Seedling tuber exchange with USDA-ARS Idaho,
ND, CO, and WI
6th Field Season 800-hill plots 20 clones
Small-scale Industry Trials
N1 and N2 Production
7th Field Season 800-hill plots and
AF certified seed
Commercial- scale Industry Trials
Commercial Seed Production
Commercial Release
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2011 Advanced Selections

• Nineteen of thirty-three advanced selections (6th
  year and older) were selected to continue
  development during 2012
• 10 russets and long-whites (53)
• 7 whites and chippers (37)
• 2 yellow-fleshed (10)

Selected Advanced Clones, 2011 (AF0338-17,
AF3001-6, AF3362-1, AF2574-1)
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AF0338-17A high yielding white for out-of-field
chipping and fresh market

• Primary Strengths
• High yields
• Chips from the field
• Wide adaptation
• Good size profile
• Much less internal heat necrosis and hollow heart
  than Atlantic
• VW resistance
• Known Weaknesses
• MS to common scab
• Not a storage chipper

AF0338-17
Atlantic
Chips, Late August 2010, New Jersey
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AF3001-6A high yielding long white with good
processing quality

• Primary Strengths
• High yields
• Wide adaptation
• Very good fry color
• Good tuber type
• Good internal quality
• VW resistance
• Known Weaknesses
• Typically white netted, not russeted
• MS to common scab
• Tuber blight in 2011

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AF3362-1A high yielding, dual-purpose russet

• Primary Strengths
• High yields
• Mid-season maturity
• Good fry color
• Good tuber type and F-G appearance
• Very little HH to date
• Bruise resistance
• Moderate scab resistance
• Known Weaknesses
• Internal heat necrosis in NJ and PA trials
• Short tuber dormancy

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AF2574-1(University of Maine Potato Breeding
AF2153-2 x bulk pollen)

• Late blight resistant, fresh market, oblong-round
  white
• Sizing good size profile
• Vine maturity late
• Yield VH
• 120 of standard whites
• Spec Grav M
• 1.079 (vs 1.090 for Atl)
• Fair to good boiled baked
• Appearance F-G, variable
• Externals M
• 12 vs 12 for Atl
• Sunb, mshp, grck

Internals HH L (1 vs 10 Atl) IHN L (much
less than Atl) Blackspot MS to MR Resistances R
to Net Necrosis MR to R (LBL, EBL) S to MS
scab, pink rot, VW
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Reds and Specialty Varieties

• Reds
• Dakota Jewel, Modoc, Mazama, Red Maria, Red
  Sunset, B2152-17
• More to come ..
• Specialty
• Lehigh (YF)
• Yukon Gem (YF)
• Peter Wilcox (purple-skinned, yellow flesh)
• Adirondack Red, Adirondack Blue
• More to come ..

AF4659-12
AF4545-1
AF4550-2
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Breeding Program Collaborations

• Parents for Crossing Program
• All U.S. Programs and many others especially
  Cornell, USDA-ARS Beltsville, and USDA-ARS
  Aberdeen
• Seedling Tuber Exchange and early screening
• ME, USDA-ARS Aberdeen, ND, WI, CO
• NC, FL, and NY
• Advanced Clone Screening and Development
• NY, USDA-ARS Beltsville, Tri-state programs,
  other programs as interesting materials become
  available
• Michigan State (started in 2010)
• SolCapProject
• USPB National Chip and Fry Processing Trials
  (NCPT, NFPT)
• Grant Proposal Collaborations
• USDA-NIFA Special Grant (FL, NC, VA, MD, NY, PA,
  OH)
• USDA-SCRI Acrylamide Project (WI lead, many
  states)

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It Takes a Team!!

• University of Maine
• Greg Porter, Paul Ocaya
• Tammy Mills, Bruce MacFarline, Beth Plummer,
  Darren Knight
• Dave Lambert, Randy Smith, Gary Sewell, Elbridge
  Giggie, J. Jemison, Andrei Alyokhin, Benildo de
  los Reyes, Al Bushway, Rod Bushway, Mary Ellen
  Camire, Brian Perkins
• Maine Seed Potato Board, Porter Farm
• Funding
• USDA-NIFA Special Grant
• Maine Potato Board
• University of Maine
• Maine Dept. of Agriculture

McCain Foods Industry Partners Gary Hawkins and
Leigh Morrow
2nd-year clones, selection plots, 2011