2007 - Potatoes at WSU - Washington State University
2007 - Potatoes at WSU - Washington State University
2007 - Potatoes at WSU - Washington State University
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LRT<br />
<strong>2007</strong> L<strong>at</strong>e Harvest Regional Trial<br />
Post Harvest Performance<br />
‣ Overall Postharvest R<strong>at</strong>ing<br />
Highest scoring clones: AO96141-3, AO96164-1, CO97087-2Ru, AOA95154-1<br />
Lowest scoring clones: AOTX95265-3Ru, Russet Burbank<br />
‣ Low temper<strong>at</strong>ure Sweetening<br />
Most resistant: AO96164-1, AO96141-3, AOA95154-1<br />
Most susceptible: AOTX95265-3Ru, Russet Burbank, A95409-1<br />
‣ Taste Panel<br />
Highest r<strong>at</strong>ed: CO97087-2Ru, AO96141-3, A97287-6, AC96052-1Ru<br />
Lowest r<strong>at</strong>ed: AOTX95265-3Ru, Russet Burbank<br />
‣ Blackspot Bruise Susceptibility<br />
Most resistant: AOA95155-7, AO96141-3<br />
Most susceptible: Ranger Russet, TXA549-1Ru<br />
‣ Variability in Tuber Shape & Fry Yield (8- to 10-oz tubers)<br />
Least variable: Russet Burbank, AOTX95265-3Ru, AO96141-3, TXA549-1Ru<br />
Most variable: AOA95155-7, AO96164-1<br />
Details<br />
• AO96141-3, AO96164-1, CO97087-2Ru, and AOA95154-1 were the highest r<strong>at</strong>ed entries,<br />
accumul<strong>at</strong>ing an average of 32.9, 31.8, 30.7, and 30.7 of 38 possible points, respectively.<br />
AO96164-1 was one of the top scoring clones in the 2005 and 2006 trials and AOA95154-1<br />
was among the top five clones in the 2006 trials. These clones had significant resistance to low<br />
temper<strong>at</strong>ure sweetening, producing USDA 0 to 1 fries (stem end) when stored for 44 days <strong>at</strong><br />
40 o F.<br />
• AOTX95265-3Ru, RB and A95409-1 were the lowest scoring clones, receiving overall scores of<br />
14/38, 16/38, and 23/38, respectively. All three clones sweetened and produced rel<strong>at</strong>ively dark<br />
fries <strong>at</strong> all storage temper<strong>at</strong>ures.<br />
• The specific gravity of AOTX95265-3Ru averaged 1.067, too low for processing contracts. This<br />
clone received the lowest taste panel r<strong>at</strong>ing (2.2/5) with many neg<strong>at</strong>ive comments.<br />
• AO96141-3 had the highest average gravity of 1.089. It was 2 nd to CO97087-2Ru (3.8/5) in<br />
taste panel score with a r<strong>at</strong>ing of 3.6/5. A97287-6 and AC96052-1Ru ranked 3 rd and 4 th in taste<br />
panel evalu<strong>at</strong>ions, respectively. The l<strong>at</strong>ter entry was also among the top 4 favorites in culinary<br />
evalu<strong>at</strong>ions last year.<br />
• AC96052-1Ru, AOA95154-1, AOA95155-7, and AOTX95265-3Ru reconditioned well <strong>at</strong> 60 o F<br />
following storage for 44 days <strong>at</strong> 40 o F. Reconditioning A97287-6 and CO97087-2Ru tubers had<br />
little effect on fry color.<br />
<strong>2007</strong> Pot<strong>at</strong>o Cultivar Evalu<strong>at</strong>ions 84 <strong>WSU</strong> Pot<strong>at</strong>o Research Group
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