WSU CAHNRS

Washington State University

Potatoes at WSU

Stored at 48°F After Arrival

  PHOTOVOLT READING DIFFUSDA % REDUCING SUGAR SPROUTING
Clonestembudaveragertg §COLORstembudrtg(%)length (in)
Washington
1Ranger Russet37.947.742.85-9.900.80.551001/2"
2Russet Burbank34.744.139.44-9.400.70.5571/8"
3A91186-245.451.948.65+6.600.80.65201/8"
4A91814-546.449.5485+3.900.60.651003/4"
5A92030-546.551.348.95+5.100.60.551001/4"
6A92294-647.248.8485+4.100.40.45871/4"
7A9304-342.94443.55+6.200.60.551001/4"
8A9305-1048.448.748.55+3.100.50.550
9A93157-6LS42.244.243.25+4.600.50.551001/2"
10AC92009-4Ru43.946.445.15-1100.90.550
11ATX9202-1Ru30.946.738.84-15.801.70.64331/8"
12CO93001-11RU41.941.941.95+2.900.50.551003"
13CO93016-3RU34.442.938.64+8.700.90.451001"
14TC1675-1Ru43.350.947.15+8.700.50.551001/2"
LSD 0.053.83.914
Average41.947.144.57.100.70.568
Idaho
1Ranger Russet32.648.340.55-15.801.20.55601/4"
2Russet Burbank30.743.437.14-1401.80.640
3A91186-246.453.249.85+7.100.70.550
4A91814-552.554.353.45+3.400.40.55401/4"
5A92030-536.243.7404-9.701.5140
6A92294-647.151.949.55+500.70.450
7A9304-342.35146.75-9.900.70.55401/8"
8A9305-1043.550.346.95+6.900.60.550
9A93157-6LS51.249.550.35+2.100.40.55801/8"
10AC92009-4Ru43.853.148.45-10.600.80.550
11ATX9202-1Ru354439.54-9.201.40.840
12CO93001-11RU42.348.945.65+6.600.70.651001"
13CO93016-3RU30.444.337.44-1411.50.641001"
14TC1675-1Ru45.651.648.65+600.60.55131/8"
LSD 0.053.5418
Average41.449.145.38.600.90.631
Oregon
1Ranger Russet24.142.333.23-19.222.30.831001"
2Russet Burbank16.84430.42-27.2330.8371/8"
3A91186-223.442.532.93-19.223.21.140
4A91814-534.841.338.14+701.80.94601 1/4"
5A92030-532.743.738.24-11.401.714801/4"
6A92294-6194834.53-31340.72801/4"
7A9304-323.445.334.33-22.8230.73271/8"
8A9305-1022.439.7313-17.322.40.830
9A93157-6LS30.941.236.14-12.601.30.64871/4"
10AC92009-4Ru1645.130.53-29.134.5110
11ATX9202-1Ru21.536.128.82-15.322.91.2271/8"
12CO93001-11RU25.541.133.33-15.812.50.931003"
13CO93016-3RU14.224.619.4014.544.5211001 1/4"
14TC1675-1Ru33.447.340.34-13.901.20.65931/8"
LSD 0.053.95.618
Average24.141.632.918.322.70.953
Date test performed, days @ 48°F:
WashingtonDec. 1570Dec. 1570Dec. 29
IdahoDec. 1770Dec. 1770Dec. 29
OregonDec. 1970Dec. 1970Dec. 29
rtg=ratingDIFF=Absolute difference between bud and stem photovolt reading.
§ Stem to bud differences of nine or greater (-) lose one point and differences of less than 9 (+) gain one point in the accumulated total postharvest rating.
Potatoes at WSU, PO Box 646414, Washington State University, Pullman WA 99164-6414, 509-335-9502
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