2013 wisconsin new chip potato varieties and elite clones
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New Long and Short Storage Potato Chip Clones in the Wisconsin Breeding Program Pipeline
Félix Navarro, Bryan Bowen, Mary Lemere, A. J. Bussan and Jiwan Palta
Introduction A goal of the UW Potato Breeding Program is to develop genetically superior chip potato cultivars that satisfy or exceed the standard for yield and grade for the chip processing markets. Each year parental lines with desired traits are crossed and progenies are evaluated for fresh market and processing traits, emphasizing early selection evaluation in Central WI and other environments Objectives:
• Development of stable long storage chippers to replace varieties such as Snowden and extend the storage chip ability beyond 7 months.
• Developing stable short storage chipping varieties as alternative to Atlantic to minimize losses due to internal defects including internal heat nechrosis, hollow heart and others.
Breeding and Selection Methods Each year: • Parental lines with desired traits are crossed and progenies are
evaluated for fresh market and processing traits. • Early Selection: in field year 1-2 clones are evaluated for fresh market
or processing traits at Rhinelander ARS. • Year 3-5: Clones are more intensively evaluated for agronomic, disease,
fresh market and processing potential at various locations: Hancock ARS, Rhinelander ARS and out of WI.
• Year 6+: Evaluation in WI (HARS, RARS, Antigo) regional, national trials and some locations in Canada (MB, ON, NB): Agronomic performance and processing traits.
Results
Long Storage Chipping Clones
Long Storage Clones with Common Scab Resistance
Lelah (W2717-5): (S440 x ND3828-15) Long storage chipping ability. Nice smooth tubers High and consistent specific gravity (1.080-1.090) Nicolet (W2133-1): (Snowden x S440)
High Yield, similar to Snowden Specific Gravity: High, consistently over 1.080 Long Chip ability and resistance to chip stem end discoloration
SpudPro Seed Availability (Foundation Seed Farm)
W5015-12 (Brodick x White Pearl)
Chips process from 48-50°F six to nine months Very high in high yielding locations. High stable gravity
Accumulator (W2324-1) (Snowden x S438) Short Storage Chipper Maybe highest yield potential among US chipping varieties High and consistent specific gravity Tolerates VW, more susceptible to common scab than Snowden
Yield Gravity
Tundra (W2310-3): (Pike x S440) Cold storage chip quality from 48°-50°F storage for 6-9 months Specific Gravity: High, usually >1.084,higher than Snowden Moderate tolerance to common scab, better than Snowden and Atlantic
1.0651.0701.0751.0801.0851.0901.0951.1001.105
PA ND WI MI Mo PA ID ME NC WI
2007 USPB/SFA Trial
2010, USPB/SFA Trial
Tundra SnowdenYield Gravity
Yield Gravity
Very competitive in low yielding years
W5955-1 (Pike x C31-5-120)
High yield, gravity .Chips 8-9 mo Size profile like Atlantic***
W6609-3 (Pike x Dakota Pearl) Longer storage, scab resistance*** Good gravity. Good chip @ 9mo
Variety 2012 2013 2014 2015 2016
SG
E2 SG SG/Com
SG
E2 SG SG/Com
Lelah SG SG/Com
Tundra
Nicolet
Variety 2012 2013 2014 2015 2016
SG SG/Com
E2 SG SG/Com
E1 E2 SG SG/Com
MT E1 E2 SG SG/Com
W6609-3 MT E1 E2 SG SG/Com
W5955-1 MT E1 E2 SG SG/Com
Accumulator
W5015-12
Note: MT = mini-tuber production, E1, E2, SG foundation seed categories, SpudPro on-farm test, SG/Com = certified seed