b'cwt./acre for Pike (generally the low meanwas1.0967yielder at this site annually) to 379 (Table1).HighforND12107CB-1.Thetrialmean values across geno-was285cwt./acre.Yieldandper- types reflect on thecentage A-sized tubers (4-10 ounce) qualitydesiredforalso differed significantly for clones chipprocessing,and were 146 cwt/a and 51%, respec- butalsothedrytively.The range for A sized yield conditionsinwas 76 cwt./acre to 201 cwt./acre for 2020.Entries werePike and ND12107CB-1, respective- sampledatgrad-ly.ND12107CB-1 also had the high- ing,andstoredatest yield of A sized tubers in 2019. 5.5C and 3.3C (42FPercentage A size ranged from 24% and38F)foreightfor ND13219C-3 to 64% for Waneta. weeks; an addition-Percentageundersizedtubers(0-4 al sample stored at ND092018C-2isacrossbetweenND2858-1andKingounces)rangedfrom14%for 5.5C will be evalu- Harry; both parents have Colorado Potato Beetle resist-ND1452CB-1, Lamoka and Waneta, atedinJuneto ance.to 70% for ND13219C-4; the mean determine long-term storage poten- for Dakota Pearl to 10 for a numberwas 35%.Very few oversized or US tial.Chip scores from the field dif- of clones including Pike; the meanNo. 2s and culls were noted during fered significantly (Table 3), ranging was 9.2.HunterLab L-values rangedgrading,althoughND7799c-1, from2.3forDakotaPearland from26forPiketo47forDakotaND1452CB-1, Lamoka, Dakota Crisp ND13219C-4 to 5.8 for ND12107CB- PearlandND7799c-1.Followingand Waneta all produced significant 1basedontheUSDAchipcolor eightweeksstorageat5.5C(42F),quantitiesofoversizedtubers. chart,withameanof4.0. theUSDAcolorchartscoremeanDakota Crisp had 12% Culls and US HunterLabInstrumentL-values was 5.8 with a ranged from 2.0 for2, primarily due to growth cracking. rangedfrom57to64for ND7519-1to9.0forPike.Tubers per plant ranged from 4.5 for ND1451CAB-3andDakotaPearl, HunterLabInstrumentscoresalsoLamokato14.7forND13219C-4, respectively,withameanof61. differed significantly, with a mean ofwithameanof8.1acrossall Followingeightweeksstorageat 55,andrangedfrom44forentrants(Table1).Tubershape 3.3C(38F),chipcolorusingthe ND12107CB-1 to 62 for ND7519-1,rangedfromroundtooblong,and USDAcolorchartrangedfrom8.0 ND7799c-1andWaneta.Finally,skin color ranged from bright whiteto flaky (slight netting, for exampleAtlantic and Snowden); flesh colors The Insulation Placewhen cut for internal disorders were 14770 69th Place NEGrafton, ND 58237 white or creamy (data not reportedforshapeortuberskinandflesh). Urethane Spray-On InsulationVery little common scab was noted Eliminates air infiltration & stops condensationand thus is not reported here. Highest R-Value Insulation Fire Proofing\x00 \x00\x00 Moisture Barriers \x00 Flat RoofsSpecific gravity, an indirect measureoftuberdrymatter,rangedfrom Grafton(701) 352-3233 1-800-352-06201.0855to1.1139forND1452CB-1 Bismarck(701) 255-0025 1-866-425-0025andND13219C-3,respectively;the Website www.theinsulationplace.comMAY/JUNE 2021 POTATO GROWER 13'