b'2021 Hoople Chip ProcessingTrial Summary By Dr. Asunta Susie Thompson, NDSU Potato BreederSignificant production of potato, aand/or expanded notable horticultural crop, occurs inmarketability. NorthDakota(ND),MinnesotaThechippro-(MN),andacrosstheNortherncessingevalua-Plains.ProducersinMNandNDtiontrialsare produce potatoes for all market seg- grownnear ments,includingprocessing(bothHoople,North chipandfrozen),tablestock,andDakota,andthe certifiedseed.About12%ofthesite is hosted by potatoes produced are for chip pro- Lloyd, Jamie and cessingwithprocessingplantsinSteveOberg;we westernandsouthernMinnesotaareverygrateful and across other areas of the plains.tothem.The Comparedtoagronomiccrops,2021Chip potatoismanagement,labor,andProcessingTrial, input intensive, requiring care fromthePreliminary plantingthroughmarketing/pro- ChipTrial,and cessing due to its perishable nature.theNationalChips of ND7519-1 from the 2021 Hoople Chip Processing Potato research has been conductedChipProcessingtrail, following storage at 42oF (5.5oC) for eight weeks.at North Dakota State University forTrial(NCPT) more than 120 years, and the pota- were included at the site, which inwith-in row spacing, and 38 inches tobreedingprogram,aspartof2021wassoutheastofCrystal,between rows; the field design was a NDSUandtheNorthDakotaNorthDakota.Dr.Darrinrandomized complete block design AgriculturalExperimentStation,Haagensons(USDA-ARSPotatowith four replicates. Cultivar specif-has been active for about 90 years. Worksite,EastGrandForks,ic management practices typical of Minnesotaresearchprogramalsonon-irrigatedchipprocessingpro-Ourprojectaddressesallmarkethad the SNAC trial at the same loca- duction fields in the northern Red typesinconventionalbreedingtion.River Valley were used. The growing efforts,andemphasizesateamseasonwasdryasintheprevious approachindevelopingimprovedTheChipProcessingTrialhad24several years, with many hot days cultivars.Ourobjectivesplaceanentries, 17 advancing selections andand nights with high temperatures. emphasis on incorporating durable,7industrychipprocessingstan- Daystoharvestwere126. long-termresistancetobioticanddards. The trial was planted on MayAgronomictraits,bruisepotential, abiotic stressors important to north- 24,2021,usinganassist-feedand merit are summarized in Table ern plains producers and industry,planter; the trial was green-dug to1, yield and grade in Table 2, and enhancingnutritionalandqualityallowmorebulkingafterawarm,chip quality attributes are summa-attributes, and providing increaseddry summer. Vines were flailed onrized in Table 3. opportunitiesforeconomicandSeptember 27 and the trial harvest-environmentalsustainabilityviaed on September 28 and 29 using aVine size (Table 1) differed signifi-newcultivarspossessingearlysingle-row Grimme harvester. Plotscantly for clone, and ranged from maturity,highyieldpotential,were20feetlong,witha12-inchmedium-smallforND102917C-1 10 POTATO GROWER MAY/JUNE 2022'