Update on potato breeding activities carried out by the University of Wisconsin Potato Breeding program. Presented at the NCCC215 meeting in Chicago, IL Dec 12, 2012

1. Wisconsin Potato Variety Breeding
Report – NCCC84 Meeting
December 10-11, 2012
Felix Navarro, Kyle Rak, Bryan Bowen
and Jiwan Palta
¹ Department of Horticulture
² Agricultural Research Stations

2. Overall Goal
To develop potato cultivars that are genetically
superior for adaptation, yield and grade
targeting the fresh and processing markets

3. Breeding Objectives
(End Use)
• Long Storage Chipping Lines (better than Snowden)
• Early Chippers (potential Atlantic replacements)
• Processing (French Fry) Russet Varieties
• Fresh Market Russet Varieties
• Fresh Market Red Skin and Specialty Varieties

4. Analysis of Seed Acres Planted in WI
and Adoption of New Potato Varieties
Chipping clones:
•Higher rate of adoption
•More clones with potential
success offered
Fresh market/processing russet:
•Not as many new choices
•Several WI clones look good for
the fresh market
Red:
•Not many new choices being
tested on-farm.
Yellow Flesh:
•Several choices of varieties being
tested and available

6. Impact and Output: New WI Releases
Variety Acres Entered for Seed Certification
2012 2011 2010 2009 2008 2007 2006 2005
MegaChip 462 385 349 382 361 279 133 50
Freedom Russet 13 56 108 128 112 103 60 35
White Pearl 22 22 3 0 19 25 24 11
Villetta Rose 11 22 9 7 21 18 67 69
Tundra 18 1 <2 0 0 4 0 0
Nicolet 111 55 20 5 0 2 0 0
Accumulator 75 56 16 0 0 0 0 0
Lelah 5
W5015-12 2
W6002-1R 1
W6511-1R 1
W6703-1Y 1
W6703-5Y 1
Acres WI lines 726 597 505 522 513 422 306 177
Number WI lines 11 7 7 4 4 7 5 5

7. To develop potato cultivars, especial consideration
is given to the selection of parents to be used in
crosses
Cold Chipping High Solids Scab Resistance Late Blight-Resist PVY-Resist
French Fries

8. Breeding Objectives
70, 656 clones were planted in Year 1:
Clones received from US and Can Breeding
Programs

9. Early Clone Selection Strategies
• Seedling tubers: seedling tuber interchanges to complement objectives
• Year 1: tuber shape, color, skin texture, specific gravity (processing quality)
• Year 2: Add Verticillium wilt, common scab, late blight, maturity, processing
quality (fry quality, specific gravity): 1 loc (yield) + Disease locs
• Year 3: Add Verticillium wilt, common scab, early blight, late blight, maturity,
processing quality (fry quality, specific gravity) : 1 loc (yield) + Disease
• Year 4 and 5: Detailed replicated yield + disease trials: 2 locs (yield) + 4 locs
(replicated common scab, late blight, verticillium, collaborative
work with CAN on sugar profiling). Clones are advanced to state,
regional (NCRT) and national trials (NCPT, NFPT).

10. Early Clone Selection Strategies
• Seedling tubers: seedling tuber interchanges to complement objectives
• Year 1: tuber shape, color, skin texture, specific gravity (processing quality)
• Year 2: Add Verticillium wilt, common scab, late blight, maturity, processing
quality (fry quality, specific gravity): 1 loc (yield) + Disease locs
• Year 3: Add Verticillium wilt, common scab, early blight, late blight, maturity,
processing quality (fry quality, specific gravity) : 1 loc (yield) + Disease
• Year 4 and 5: Detailed replicated yield + disease trials: 2 locs (yield) + 4 locs
(replicated common scab, late blight, verticillium, collaborative
work with CAN on sugar profiling). Clones are advanced to state,
regional (NCRT) and national trials (NCPT, NFPT).

11. 2012 Follow Up to Early Clone Selection
 1000+ clones Year 2 and 3 of the russet and chip types
are stored at 45°F and will be evaluated for processing
traits (specific gravity/fry quality) in late January or early
February.
They were already evaluated for external and internal quality
Additionally, two new experimental populations , 1)
Bannock Russet x Tundra (190 clones) , and 2) Liberator
(scab resistant) x W4013-1 (110 clones) were field tested
and are being evaluated for processing traits.
Bannock
Tundra Some Bannock x Tundra

12. Processing and Tuber Internal + External
Traits used for Selection

13. National Chip & French Fry Processing Trials
and Screening or Early Selection Clones
(2012)

14. Accumulator: A New Short Storage
Potato Chipping Variety with
Exceptional Yield Potential
F.M. Navarro1, B.D. Bowen2, H.I. Groza2,
A.J. Bussan1, J. Jiang1 and J.P. Palta1
¹ Department of Horticulture
² Agricultural Research Stations

15. US#1 Yield (cwt/a) Accumulator
(W2324-1) vs. Atlantic
 WI State Trials (2001-03 )

16. USPB/SFA Trial: Yield (cwt/a)
Accumulator (W2324-1) vs. Snowden
US-South

17. WI Specific Gravity: Accumulator
(W2324-1) vs. Atlantic (8 years)

18. USPB/SFA Trial: Yield (cwt/a)
Accumulator (W2324-1) vs. Snowden
US-South

19. Lelah: A New Potato Chipping
Variety with Excellent Long Storage
Ability
F.M. Navarro1, B.D. Bowen2, H.I. Groza2,
A.J. Bussan1, J. Jiang1 and J.P. Palta1
¹ Department of Horticulture
² Agricultural Research Stations

20. Lelah Tuber Glucose (mg/g FW) 2006-07
Ontario, Can 50°F Storage Trials
Data: V. Currie, A. Sullivan, U. of

21. WI Specific Gravity in USPB/SFA-North
Lelah (W2717-5) vs. Snowden

22. Lelah (W2717-5)
Pedigree: Snowden x S440
 Maintains chip quality at least a month
longer than Snowden from 45-50°F.
 Specific gravity is similar to Snowden in
average but more consistent (less variable)
 Better tuber shape and uniformity than
Snowden.
 Field tuber yield lower than Snowden , but it
is a choice as a chip-stock after 7-9 months
in storage, when Snowden tuber yield = $0

23. WI Clones Evaluated in the
NFPT 2011-12
New French Fry Processing Clones
W6234-4rus
W6360-1rus W7449-1rus W8946-1rus
W9604-1rus W8743-1rus W8152-1rus

24. National French Fry Processing Trial 2011
Acrylamide Results
November 22, 2011 February 2, 2012
• Selection procedures need to be implemented to select for French Fry QSR traits

25. Progress on Fresh Market Russets
W8772-1rus
W8772-1rus W8516-1rus
W8516-1rus W9433-1rus
W9433-1rus
(W2253-2rusxCO82142-4rus)
(W2253-2rusxCO82142-4rus) (Silverton xxRanger Rus)
(Silverton Ranger Rus) (Calwhite xxA96023-6)
(Calwhite A96023-6)
HARS SG CS VW E HARS SG CS VW Early HARS SG CS V Early
Yield Blight Yield Blight Yield W Blight
Yr3 532 62 Yr3 56 Yr3 694 73
Yr4 351 63 R S S Yr4 527 63 R MS S Yr4 550 88 MS R R
Yr5 436 69 R MS MS SPP 572 63 R MS MS Yr5 500 69 MS R R
SPP 682 79
Great looks, uniform size, Yield? Great looks, uniform size, Yield High Yield, light russet

26. Progress on Fresh Market Russets
W9429-1rus
W9429-1rus W8722-1rus
W8722-1rus W9133-1rus
W9133-1rus
(CV92056-4 xxStirling)
(CV92056-4 Stirling) (A9014-2rus xxW2683-2rus)
(A9014-2rus W2683-2rus) (ND4093-4rus xxCO82142-4rus)
(ND4093-4rus CO82142-4rus)
HARS
HARS SG
SG CS
CS Vert
Vert Early
Early HARS SG CS VW Early HARS SG CS VW Early
Yield
Yield Wilt
Wilt Blight
Blight Yield Blight Yield Blight
Yr3
Yr3 694
694 88
88 Yr3 393 69 Yr3 503 63
Yr4
Yr4 550
550 69
69 MS
MS R
R R
R Yr4 375 64 R MS MS Yr4 533 68 R MS MS
Yr5
Yr5 500
500 MS
MS R
R R
R WVT 524 69 MS MS SPP 694 60
SPP
SPP 682
682 79
79 SPP 537 70
High Yield, light russet Great looks, uniform size, Yield? Yield, Great looks, uniform size

27. New Elite Chipping Clones
W5955-1
W5955-1 W5015-12
W5015-12 W5015-5
W5015-5
(Pike xxC31-5-120)
(Pike C31-5-120) (Brodick xxDakota
(Brodick Dakota (Brodick xxDakota
(Brodick Dakota
Pearl)
Pearl) Pearl)
Pearl)
Market. Yield: Medium: 335-535 cwt/a Market. Yield: Medium to high
Tuber Shape: Round and ~flattened Tuber Shape: Round and less
Specific Gravity: Similar, consistent 80 flattened
Specific Gravity: higher than W5015-
Among the best chip processor in 12
Snack Food Processing Trial
combining yield, specific gravity and Not tested in Snack Food Trial
fry.
Late bulking, but better size profile
Late bulking, otherwise small size
profile
Scab tolerant, attractive tubers shape and
Scab tolerant, attractive tubers shape and Late blight tolerant, attractive tubers
Late blight tolerant, attractive tubers
size (WVT,SPP fry Oct, Jan
size (WVT,SPP fry Oct, Jan shape and size
shape and size

28. Red & Yellow Flesh Lines Promoted between 2009-11
W6002-1R (Smooth Red) W8405-1R
W6511-1R (Smooth Long Red) W6703-1Y (Smooth, cscab

29. Wisconsin Potato Variety Breeding
Report – NCCC84 Meeting
December 10-11, 2012
Felix Navarro, Kyle Rak, Bryan Bowen
and Jiwan Palta
¹ Department of Horticulture
² Agricultural Research Stations