2007 - Potatoes at WSU - Washington State University

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Entries Retained from the 2006 Trials Currently in the Regional Trial Harvested fall of 2006 Held at 48°F until December 28 Stored at 44°F until analysis A97287-6 was advanced from the 2006 Tri-State Trial into the 2007 Regional Trial. A97287-6, AC96052-1Ru, and TXA549- 1Ru produced French fries with a USDA “0” rating from all locations. A95409-1 produced fries with a USDA “2” rating from WA and OR. Averaged across locations, A97287-6 produced the shortest sprouts (1 1/8”), while AO96164-1 produced the longest sprouts (4 3/4”). Ranger and Russet Burbank averaged 2 ½” and 1 ½”, respectively. PHO TO VO LT R EADIN G U SDA % R E D U C IN G SUG AR Sprouting C lone stem bud avg D IFF C O LO R stem bud avg percent length W ashington 1 R anger R usset 30.4 40.7 35.5 10.3 1 1.4 0.7 1.0 100 2" 2 R usset Burbank 30.3 45.9 38.1 15.6 1 1.4 0.5 1.0 100 1 1/2" 3 A95409-1 23.5 34.4 28.9 11.6 2 2.1 1.0 1.6 100 4" 4 A96104-2 33.8 45.3 39.6 11.4 0 1.1 0.6 0.8 100 2" 5 A97287-6 § 37.3 48.4 42.9 11.1 0 0.9 0.5 0.7 100 1" 6 AC96052-1R u 48.8 53.6 51.2 5.8 0 0.5 0.5 0.5 100 1 1/2" 7 AO 96141-3 23.8 44.9 34.3 21.1 2 2.1 0.6 1.3 100 3" 8 AO 96164-1 36.5 42.9 39.7 7.4 0 0.9 0.6 0.8 100 5" 9 AO A95154-1 48.1 55.9 52.0 7.8 0 0.5 0.5 0.5 100 1" 10 AO A95155-7 42.4 48.3 45.3 6.0 0 0.6 0.5 0.6 100 3" 11 TXA549-1R u 35.3 47.7 41.5 12.4 0 1.0 0.5 0.8 100 2" LSD 0.05 4.0 4.6 Average 33.1 44.5 38.8 11.8 1 1.1 0.6 1.0 100 Idaho 1 R anger R usset 32.4 44.2 38.3 11.8 0 1.2 0.6 0.9 100 3" 2 R usset Burbank 28.2 40.4 34.3 15.3 1 1.6 0.7 1.1 100 3/4" 3 A95409-1 34.7 37.5 36.1 8.6 0 1.0 0.8 0.9 100 4" 4 A96104-2 34.8 40.9 37.8 6.7 0 1.0 0.7 0.9 100 2 1/2" 5 A97287-6 § 36.7 34.6 35.6 5.1 0 0.9 1.0 1.0 100 1 1/2" 6 AC96052-1R u 45.8 51.0 48.4 5.9 0 0.6 0.5 0.5 100 1 1/2" 7 AO 96141-3 41.9 39.9 40.9 10.5 0 0.7 0.7 0.7 100 4" 8 AO 96164-1 33.2 36.7 35.0 7.3 0 1.1 0.9 1.0 100 3" 9 AO A95154-1 50.5 48.1 49.3 3.7 0 0.5 0.5 0.5 100 1" 10 AO A95155-7 42.7 42.5 42.6 4.2 0 0.6 0.6 0.6 100 4" 11 TXA549-1R u 40.8 43.1 42.0 5.6 0 0.7 0.6 0.7 100 4" LSD 0.05 4.1 4.2 Average 36.4 41.2 38.8 9.1 0 1.0 0.7 0.9 100 O regon 1 R anger R usset 24.9 38.3 31.6 13.4 1 2.0 0.8 1.4 100 2 1/2" 2 R usset Burbank 24.6 41.6 33.1 17.0 1 2.0 0.7 1.3 100 2" 3 A95409-1 20.2 32.6 26.4 12.5 2 2.7 1.2 1.9 100 4" 4 A96104-2 25.7 37.8 31.7 12.2 1 1.9 0.8 1.4 100 3" 5 A97287-6 § 34.1 34.9 34.5 4.3 0 1.1 1.0 1.0 100 1" 6 AC96052-1R u 38.3 48.5 43.4 10.2 0 0.8 0.5 0.7 100 2 1/2" 7 AO 96141-3 41.1 42.6 41.9 4.7 0 0.7 0.6 0.7 100 3" 8 AO 96164-1 34.6 45.3 39.9 10.7 0 1.0 0.6 0.8 100 6" 9 AO A95154-1 30.2 45.8 38.0 15.8 1 1.4 0.6 1.0 100 2" 10 AO A95155-7 25.9 47.0 36.4 21.1 1 1.8 0.5 1.2 100 5" 11 TXA549-1R u 35.9 39.3 37.6 5.0 0 0.9 0.8 0.9 100 4" LSD 0.05 3.6 4.6 Average 29.8 39.5 34.7 10.6 1 1.6 0.8 1.2 100 § Advanced from 2006 Tri-State Trial D ate test perform ed: W ashington M ay 1 Idaho M ay 2 O regon M ay 3 LRT 2007 Potato Cultivar Evaluations 3 WSU Potato Research Group
RED & SPECIALTY 2007 Red and Specialty Trial Location: Commercial field near Granger, WA Planting Date: March 2 Vine Kill Date: July 20 Harvest Date: July 30 Days Grown: 121 In-Row Spacing: 8 in. The Regional Red and Specialty trial is a part of the overall Western Regional Trial effort. This trial consists of clones with unique color and attributes which are primarily evaluated for fresh market suitability. This year’s trial compared 4 local reference varieties to 21 new clones and was grown in a commercial field near Granger, WA. Growing conditions were favorable for tuber growth cracks; as a result, we were able to determine which clones had genetic resistance or susceptibility. The following is a summary of the Washington field and postharvest results. For additional information, see the grading comments and merit scores near front of book. Visual Standouts (nice color, skin, size distribution, & shape): Red/White flesh: C098012-5R was nice but had some growth cracks. Red/Yellow flesh: ATTX961014-1R/Y. Red/Red flesh: POR01PG20-12. Purple/Purple flesh: CO97215-2P/P, some bronzing. Yellow flesh: POR02PG37-2, some rhizoc. Suggested Discards: CO97232-2R/Y, CO97233-3R/Y, POR00PG4-1, CO97222-1R/R, POR02PG26-5, A96510-4Y. Standcounts ‣ 40 Day Fast emergence: Most entries were > 90% emerged at 40 DAP. Slow emergence: Yukon Gold (80%), CO97233-3R/Y, and A96510-4Y (81% each). ‣ 50 Day Full emergence: Most entries were > 96% emerged at 50DAP. Poor emergence: Yukon Gold (94%). Plant and Tuber Growth & Development ‣ 60 Day Stems per plant Most: CO97227-2P/PW (3.3). Fewest: Yukon Gold (1.4), A96510-4Y (1.6), and POR02PG5-1 (1.6); all other entries averaged over 1.7 stems or greater. ‣ Average Tuber Number Per Plant Most: CO97227-2P/PW (9.4) and POR01PG16-1 (9.2). Fewest: A96510-4Y (3.3), Yukon Gold and POR02PG5-1 (4.1). ‣ Average Tuber Size (oz) Largest: POR02PG5-1 (10.9), Red LaSoda (10.5), and Yukon Gold (9.7). Smallest: CO97226-2R/R (3.5), POR01PG22-1 (3.8), and CO97227-2P/PW (3.9). 2007 Potato Cultivar Evaluations 4 WSU Potato Research Group
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2007 Potato Cultivar Yield and Post
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Table of Contents Introduction.....
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INTRODUCTION The 2007 Washington
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2007 Growing Season Temperatures Ap
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OVERALL CULTIVAR & CLONE PERFORMANC
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ADVANCED LINES - REGIONAL TRIAL Pro
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At-Harvest Grading Comments & Fresh
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Fresh Market Value - Methods Econom
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2007 Postharvest Procedures Early H
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Calculation of Total Score - The ov
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ETS 2007 Early Harvest Tri-State Tr
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ETS Tubers Fries WA Early Harvest T
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ETS Tubers Fries WA Early Harvest T
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ETS Josh Rodriguez gives a new mean
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LTS 2007 Late Harvest Tri-State Tri
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LTS Tubers Ranger Russet WA Late Ha
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LTS Tubers A98345-1 WA Late Harvest
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LTS Tubers PA00N15-2 WA Late Harves
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LTS Tubers PA99N82-4 WA Late Harves
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LTS “A meeting of the minds” du
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Page 63 and 64: LTS 2007 Late Harvest Tri-State Tri
Page 69 and 70: ERT 2007 Early Harvest Regional Tri
Page 77 and 78: ERT Tubers Fries WA Early Harvest R
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Page 83 and 84: LRT 2007 Late Harvest Regional Tria
Page 93 and 94: LRT Tubers Ranger Russet WA Late Ha
Page 95 and 96: LRT Tubers AC96052-1Ru WA Late Harv
Page 97 and 98: LRT Tubers AOTX95265-3Ru WA Late Ha
Page 113: LRT Late Harvest Fresh-Processing E
Page 117 and 118: RED & SPECIALTY ‣ For oven baked
Page 119 and 120: RED & SPECIALTY 2007 Regional Red a
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Page 123 and 124: RED & SPECIALTY Tubers WA Red and S
Page 133 and 134: RED & SPECIALTY 2007 Washington Reg
Page 135 and 136: RED & SPECIALTY 2007 Washington Reg
Page 137: Index of Clones and Cultivars Early
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