WSU CAHNRS

Washington State University

Potatoes at WSU

Entries Retained from the 2007 Trials Currently in the Tri-State Trial

Harvested Fall of 2007

Held at 48°F until December 26, 2007

Stored at 44°F until analysis

A96814-65LB, A98345-1, AO96305-3, AO96365-2, and PA00N14-2 were retained from the 2007 Tri-State trial. All clones fried as light as or lighter than Ranger Russet and Russet Burbank. These entries also had lower reducing sugars than the check cultivars. On average, differences in color of fries from bud to stem end were unacceptable for PA00N14-2, Ranger Russet, and Russet Burbank. A98345-1 tubers from Oregon produced fries with considerable dark mottling in the center of the fries. Tubers of all entries were sprouted with sprout lengths ranging from 1.5 to 7 inches following storage for 7 months.

  PHOTOVOLT READING  USDA % REDUCING SUGAR Sprouting
ClonestembudavgDIFFCOLORstembudavgpercentlength
Washington
1Ranger Russet24.134.429.310.322.111.61006"
2Russet Burbank35.238.937.16.2010.80.91007"
3A96814-65LB47.153.950.56.800.50.50.51004"
4A98345-137.935.836.97.600.80.90.91004"
5AO96305-346.55048.26.100.50.50.51005"
6AO96365-234.544.939.710.4010.60.81005"
7PA00N14-243.850.547.26.800.60.50.61006"
LSD 0.054.14.3
Average38.544.141.37.70.30.90.70.8100
Idaho
1Ranger Russet31.13633.58.701.30.91.11004"
2Russet Burbank3345.339.212.301.10.60.81001 1/2"
3A96814-65LB48.253.350.86.300.50.60.51003"
4A98345-140.747.444.17.300.70.50.61006"
5AO96305-348.653.5517.200.50.60.51004"
6AO96365-24048.344.18.300.70.50.61003 1/2"
7PA00N14-243.353.248.21000.60.60.61003"
LSD 0.053.35.5
Average40.748.144.48.600.80.60.7100
Oregon
1Ranger Russet22.138.430.216.322.40.81.61004"
2Russet Burbank22.24031.117.822.30.71.51005"
3A96814-65LB39.648.544.19.300.70.50.61004"
4A98345-127.830.629.27.811.61.31.51006"
5AO96305-343.149.546.39.400.60.50.61004"
6AO96365-224.431.728.17.9221.21.61003"
7PA00N14-228.544.636.618.411.50.61.11004"
LSD 0.053.15.2
Average29.740.535.112.41.11.60.81.2100
Date test performed: WA May 5, ID May 7 & OR May 9

Potatoes at WSU, PO Box 646414, Washington State University, Pullman WA 99164-6414, 509-335-9502
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