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New Fresh Market and Processing Potato Clones in the Wisconsin Potato Breeding Program Pipeline
Félix Navarro, Bryan Bowen, Mary Lemere, and Jiwan Palta
Introduction A goal of the UW Potato Breeding Program is to develop genetically superior russet potato cultivars that satisfy or exceed the standard for yield and grade for the fresh market and 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 alternatives for the fresh market to varieties like Goldrush, Russet Norkotah or Silverton.
• Developing processing russet varieties with more consistent agronomic performance compared to Russet Burbank while closely retaining Burbanks’ French fry attributes.
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
Russet Processing Clones
Yield Size Grade and Gravity: Process Russets
Fresh Market Russets
Fresh Market Russets
Tuber characteristics of W6234-4rus and W8152-1rus and comparison of fry products to Russet Burbank processed at 1 and 3 months after harvest.
W6234-4rus (Umatilla Russet x A9014-2rus)
3mo 48°F
1mo 48°F
W6234-4rus Russet Burbank W8152-1rus Russet Burbank
3mo 48°F
1mo 48°F
W8152-1rus (A93004-3RU x CO94035-15RU)
W9433-1rus (Calwhite x A96023-6) Nice looking light russet. Less internal defects than Russet Norkotah Tolerance to Verticillium wilt and Early Blight. Maturity: Medium Late
W8772-1rus (W2253-2rus x CO82142-4rus) Moderate yield. Medium early. As early as Russet Norkotah Nice type Common Scab Resistant
W8516-1rus (Silverton x Ranger Rus) High Yield. Medium early; maybe as early as Russet Norkotah. Nice type Common Scab Resistant
W8722-1rus (A9014-2rus x W2683-2rus) Yield similar to Russet Norkotah. Medium late maturity. Nice tuber shape and Common scab resistance
W9133-1rus (ND4093-4rus x CO82142-4rus)
Yield similar or higher than Russet Norkotah. Medium late. Nice tuber external type. Very low internal defects Tolerant to common scab. Susceptible to VW and early blight.
Location Clones
Tuber
Pref
(1-5)
SG
Internal
Defects
Free %
W9133-1rus 1.059
RNorkotah 1.060
W9133-1rus 1.6 1.068 94.4
RNorkotah 2.0 1.067 90.9
W9133-1rus 1.8 1.059 95.9
RNorkotah 2.2 1.063 92.8
W9133-1rus 1.0 1.061 97.0
RNorkotah Sel8 2.0 1.06 81.0
W9133-1rus 1.8 1.061 93.3
RNorkotah 2.3 1.064 83.3
W9133-1rus 1.8 1.067 97.2
RNorkotah 1.5 1.072 79.0
W9133-1rus
Rburbank
HARS-Y4
2011
HARS-Y3
2010
HARS-Y5
2012
HARS-SPP
2012
HARS-
WVT 2012
Antigo
WVT 2012
Alliston,
Canada
Location Clone
Tuber
Pref
1-5
Spec
Grav
Free
Internal
Defects
W8772-1rus 1.064 95.6
RBurbank 1.078 84.7
W8772-1rus 1.9 1.063 96.4
RNorkotah 2.0 1.066 96.3
W8772-1rus 1.8 1.056 94.1
RNorkotah 1.9 1.060 91.7
W8772-1rus 2.0 1.071 92.1
RNorkotah Sel8 2.0 1.063 80.8
HARS-SPP
2012
HARS-Y4
2010
HARS-Y5
2011
HARS-Y3
2009
Location CloneTuber
Pref 1-
5
Spec
Grav
Free
Internal
DefectsW8516-1rus 2.3 1.072 95.7
RNorkotah 2.4 1.073 83.1
W8516-1rus 1.8 1.058 94.5
RNorkotah 1.9 1.060 92.1
W8516-1rus 1.5 1.072 90.4
RNorkotah Sel81.7 1.063 80.8
HARS-Y4
2009
HARS-Y5
2011
HARS-SPP
2012
445 46 29
Location Clone Tuber Pref 1-5
Spec Grav
Free Internal Defects
HARS-Y3 2009
W9433-1rus 1.074 82.0
RBurbank 1.073 84.2
HARS-Y4 2010
W9433-1rus 2.2 1.069
RNorkotah 2.0 1.066
HARS-Y5 2011
W9433-1rus 1.8 1.066 91.1
RNorkotah 1.9 1.060 91.7
HARS-SPP 2012
W9433-1rus 1.8 1.077 92.7
RNorkotah Sel8 1.7 1.063 81.0
Location Clone Tuber Pref 1-5
Spec Grav
Free Internal Defects
HARS-Y3 2009
W8722-1rus 1.076 91.3
RBurbank 1.078 84.7
HARS-Y4 2010
W8722-1rus 2.8 1.064 93.3
RNorkotah 2.0 1.066 96.3
HARS-SPP 2012
W8722-1rus 2.0 1.067 93.8
RNorkotah Sel8 2.0 1.063 80.8
HARS-WVT 2011
W8722-1rus 1.5 1.069 93.3
RNorkotah 2.0 1.069 93.1
HARS-WVT 2012
W8722-1rus 2.2 1.070 96.7
RNorkotah 2.3 1.064 83.3
Antigo WVT 2012
W8722-1rus 2.5 1.073 78.5
RNorkotah 2.8 1.077 95.7
Variety 2012 2013 2014 2015 2016 2017 2018 2019 2020
E2 SG SG/Com
E1 E2 SG SG/Com
W8152-1rus MT E1 E2 SG SG/Com
W8516-1rus VC VC/TC
W8722-1rus VC VC/TC
W9133-1rus VC VC/TC
W9433-1rus VC VC/TC
W6234-4rus
W6234-4rus (Moderately Low Acrylamide)
W8152-1rus (Extremely Low Acrylamyde)
SpudPro Seed Availability (Foundation Seed Farm)
Note: MT = mini-tuber production, E1, E2, SG foundation seed categories, SpudPro on-farm test, SG/Com = certified seed