b'Larimore Processing Trial 2022 Summaryby Dr. Asunta Susie Thompson, NDSU Potato BreederPotato is an important specialty crop inbreedingprogramconductedfieldgrant. The NFPT included two advanc-NorthDakota(ND),Minnesota(MN),researchtrialsatlocationsinNorthingselectionsfromNDSU,ND1412Y-andacrossmanyareasofNorthernDakota and Minnesota, including non- 5Russ and ND1413YB-1Russ, in Tier 2. America. Relative to common agronom- irritatedsitesatCrystal,Hoople,andBoth selections have a Uruguayan selec-ic crops, this horticultural crop is man- Fargo,NorthDakota,andBaker,tion, 90245.1, with extreme PVY resist-agement,labor,andinputintensive.Minnesota.Irrigatedlocationswereatance as their female parent. The male About65%ofpotatoproductioninLarimore and Oakes, North Dakota, andparentofND1412Y-5RussisDakota NorthDakotaandMinnesotaisnowPark Rapids, Minnesota. This summaryRusset,whilethemaleparentof used for frozen processing. In order toprovidesinformationfocusedontheND1413YB-1RussisDakotaTrailblazer. address shortcomings of common pro- Larimoresite,hostedbyHoversonThe NCR trial evaluated 126 early gener-cessingcultivars,theNDSUpotatoFarms,andspecificallyreportsontheationgenotypesacrossmarkettypes breeding program, as part of the potatoProcessingTrial.Pleasewatchforcomparedtonineindustrystandards. improvementteam,usesconventionalupcomingarticlessummarizingourAdvancingselectionswithprocessing breedingtechniques,engagesinfreshmarketandchipprocessingtrialpotential(frozen/Frenchfryandchip) germplasm enhancement, and conductsresults for 2022. are submitted to Dr. Darrin Haagenson selection and evaluation in our efforts(USDA-ARS,EastGrandForks, to identify and develop superior culti- In addition to the processing trial, otherMinnesota)eachgrowingseasonfor vars for grower, industry, and consumertrials at the Larimore site included theinclusioninhisserialprocessingtrial, acceptanceandadoption.OurgoalsNationalFrenchFryProcessingtrialalso grown at the Larimore site; his team include identification of early maturing(NFPT),apreliminaryprocessingtrialconductsevaluationsfromstorageat genotypes possessing high yield poten- (unreplicated)included58russet/longseveral temperatures and timepoints.tial, incorporation of durable and long- white-skinned selections with dual-pur-termresistancetobioticandabioticpose potential compared to eight indus- Resultsfortheprocessingtrialare stressors important to producers and ourtrystandards,theNorthCentralreported in Tables 1 through 3, and in industry, enhancing quality and nutri- Regional Genomic Selection Trial (Drs.Figure1.In2022,15advancingdual-tionalcharacteristics,andprovidingDouches,EndelmanandShannonarepurpose russet selections were compared opportunities for expanded marketabili- cooperators), and several agronomic tri- tosevenindustrystandards;while ty,andeconomicandenvironmentalalsincludingafinalyearofacropShepodydoesnotoftenperformwell sustainabilityvianewcultivars.Twooil/vine kill study (in cooperation without of storage, it has been a cultivar used research objectives were established forDrs. Secor, Robinson, and McRae) sup- foropeningplantsduetoitsearlier 2022: ported by North Dakota Specialty Cropmaturity,thus,itservedasourpoor Block Grant FY19-442, evaluation of aFrench fry processing check out of long-1. Develop economically viable and sus- potentialcropenhancementproduct,term storage at 45F (7.2C). The Larimore tainable potato cultivars and germplasmand a trial utilizing a caterpillar tunnelprocessing trial was planted on June 7, adapted to the Northern Plains region.toincreaseheat/moisturestressandasarandomizedcompleteblockwith electronics to monitor impacts on root,four replicates. Cultural practices typical 2. Evaluate and develop breeding toolscanopyandtubergrowth;thislatterof the growing area for Umatilla Russet and emerging technologies for improv- studyisincollaborationwithDrs.wereusedduringthegrowingseason, ing potato breeding efficiency.Dogramaci,Hatterman-Valenti,andincludingsprinklerirrigation.Rows Panigrahi(PurdueUniversity),andiswere36inchesapart,witha12-inch To address these objectives, the potatosupportedbyaUSDA-ARS(potato)within-row spacing. The trial was flailed 16 POTATO GROWER APRIL 2023'