WSU CAHNRS

Washington State University

Potatoes at WSU

Late Harvest Tri-State Stored at 44°F after arrival

  PHOTOVOLT READING %   USDAREDUCING SUGAR
Clonestembudaveragertg §DIFFCOLORstembudrtg
Washington
1Ranger Russet19.73426.82-14.321.60.54
2Russet Burbank1927.623.31+8.731.40.64
3A89219-715.524.119.81+8.832.11.13
4A9045-713.221.617.408.5421.73
5A90586-1117.221.219.20431.61.73
6AO90014-117.926.2221-932.21.43
7AO92017-620.229.7252-9.521.90.94
LSD 0.053.54.10.050.1
Average17.526.321.9931.81.1
Idaho
1Ranger Russet14.721.217.906.532.51.33
2Russet Burbank16.724.820.71+8.3321.53
3A89219-713.719.816.706.242.11.63
4A9045-713.816.114.902.3421.92
5A90586-1114.517.6160442.12.52
6AO90014-131.642.3374-10.700.70.55
7AO92017-622.32724.62+4.721.20.84
LSD 0.051.92.60.10.1
Average18.224.121.16.131.81.4
Oregon
1Ranger Russet16.728.322.51-11.632.313
2Russet Burbank14.125.219.61-11.142.91.42
3A89219-717.52420.71+6.732.41.33
4A9045-712.921.417.208.5431.42
5A90586-1115.425.320.41-9.932.61.52
6AO90014-117.334.7262-17.432.30.73
7AO92017-623.628.826.22+5.220.60.75
LSD 0.053.13.90.20.1
Average16.826.821.810.132.34.2
Date test performed:
WashingtonDec. 3Dec. 3
IdahoDec. 6Dec. 6
OregonDec. 7Dec. 7
rtg=ratingDIFF=difference between bud and stem photovolt reading
§ Stem to bud differences of nine or greater (-) would lose one point.
Differences of less than 9 (+) would receive one extra point.
Potatoes at WSU, PO Box 646414, Washington State University, Pullman WA 99164-6414, 509-335-9502
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