WSU CAHNRS

Washington State University

Potatoes at WSU

Stored at 48°F after arrival

  PHOTOVOLT READING DIFFUSDA % REDUCING SUGAR SPROUTING
Clonestembudaveragertg §COLORstembudrtg(%)length
Washington
1Ranger Russet16.929.1231-12.231.61.141001/2"
2Russet Burbank19.228.723.91-9.931.50.8471/8"
3A91186-226.839.1333-12.311.20.65331/8"
4A91814-518.434.826.62-16.931.40.84471/4"
5A92030-42035.227.62-15.221.60.840
6A92030-52337.330.22-14.421.40.64401/4"
7A9304-320.839.129.92-18.421.60.440
8A9305-101834.426.22-16.531.80.7471/8"
9A93116-316.325.821.11-10321.230
10A93157-6LS33.542.337.94-9.500.50.15601/8"
11PA95A11-1415.732.724.21-17320.74931/2"
LSD 0.053.95.720
Average20.434.727.514.521.50.729
Idaho
1Ranger Russet32.335.233.74+5.800.50.25731/4"
2Russet Burbank29.940.1353-11.910.50.350
3A91186-248.548.648.55+4.500.20.250
4A91814-550.751.551.15+500.10.15471/2"
5A92030-447.341.744.55+6.900.20.250
6A92030-531.638.635.13+8.700.80.650
7A9304-339.839.139.54+3.200.40.45271/8"
8A9305-1044.949.347.15+500.20.250
9A93116-326.131.528.82+7.711140
10A93157-6LS50.849.950.35+400.20.251001/4"
11PA95A11-1430.24035.13-11.611.10.651001/4"
LSD 0.0543.517
Average40.64341.86.400.30.318
Oregon
1Ranger Russet28.737.633.13-10.110.80.25871/2"
2Russet Burbank33.747.640.65-13.901.20.250
3A91186-231.946394-14.100.90.2513P
4A91814-543.449.946.65+8.700.50.15531/4"
5A92030-4 *43.850.1475+7.400.70.35201/8"
6A92030-540.347.543.95-9.100.50.25801/4"
7A9304-337.650.143.85-12.400.50.25671/4"
8A9305-1040.743.842.35+700.30.250
9A93116-330.340.235.33-10.311.30.550
10A93157-6LS41.642.642.15+4.600.20.25931/2"
11PA95A11-1420.338.529.42-18.221.90.541001/2"
LSD 0.054.64.920
Average37.546.64210.300.70.240
Date test performed:
WashingtonNov. 26Nov. 26Dec. 28
IdahoNov. 27Nov. 27Dec. 28
OregonNov. 28Nov. 28Dec. 28
rtg=ratingDIFF= Absolute difference between bud and stem photovolt reading.P=peeping
§ 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.
* Variety mix
Potatoes at WSU, PO Box 646414, Washington State University, Pullman WA 99164-6414, 509-335-9502
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