b'to breed and select genotypes thatincludingtuber producepredominantlyA-sizedskincolor,scurf tubers,aswellasthosewithhighrating,specific tuber set, in order to meet needs ofgravity,andbruise different operations and their mar- potential.Skin ket niches.colorrangedfrom yellow(Y)for GrowingconditionsintheCrystalND1241-1Yand area in 2022 were much improvedYukonGold,to over 2020 and 2021, with good soilpurple(P)for moisturepriortoplantingandND1243-1PYand throughoutthegrowingseason.All Blue. The NDSU Dayandnighttimetemperaturespotatobreeding overallwerealsoclosertolong- programempha-termaverages.Meantotalyieldsizesbright,red-(Table 2) was 289 cwt./acre, and dif- skinnedgenotypes fered significantly across genotypes,withwhiteoryel-rangingfrom170cwt./Aforlow flesh; many of ND14284CB-4Rto398cwt./Aforthe2022entries RedLaSoda.Similarly,yieldsofAhadsuperiorcolorND081571-2Risapretty,earlymaturing,brightred-skinned,white-fleshedselectionwithfreshmarket sizedtubers(USNo.1s)was(rated as a 3.8 andpotential, progressing through the NDSU potato breed-improved, ranging from 12 to 243higher)compareding pipeline. It resulted from the cross of ND4659-5R x Dakota Ruby.cwt/acre,withpercentageAsizetotheindustry rangingfrom5%forND1382-2RstandardsRedgeneralratingreflectstotalyield, andND14282CB-4R(bothclonesNorland,RedLaSodaandSangre.thetubersizeprofile,tubercolor, set high tuber numbers per plant asHollowheart,browncenter,andshape,eye/eyebrowdepth,and notedinTable1),to64%forRedother disorders were minimal, thusexternal defects. The mean general Norland and Yukon Gold. Both A- data are not reported here. Specificrating was 3.6, slightly higher than sized yield and percentage differedgravitydifferedsignificantlyfor3.3 in 2021; it differed significantly significantlyacrossentriesasclones.Themeanspecificgravityforclones.Thegeneralrating expected. The percentage of 0 to 4- was 1.0903, and ranged from 1.0764rangedfrom2.7(mediocre)for ounce size tubers ranged from 20%forND081571-2Rto1.1157forSangreto4.1(excellent)for forRedLaSodato98%forND1241-1Y. ND1241-1Y is a beauti- ND081571-2RandND1241-1Y. ND1455Y-1R;ND1382-2Randfulyellowfleshed,dual-purposeBlackspot and shatter bruise evalua-ND14282CB-4R had means of 95%.selection suited for the fresh markettion results are reported in Figure 1. Thepercentagetubers4-6ouncesand chip processing. Blackspotbruisingresultswhen ranged from 5% for ND14282CB-4Rtubers are jostled during during har-andND1382-2Rto46%forRedThemaleparentisIvoryCrisp,avestandhandling,bumpinginto Norland. The industry standard cul- notablechipprocessingcultivareachother,truckbeds,conveyors tivars produced the most tubers inbredatNDSU,developedandetc. The bruises form when polyphe-the 6 to 10-ounce range, as well asreleasedinthePacificNorthwest.noloxidaseandtyrosinecombine oversized tubers. There were few cullElevatedspecificgravitiesarewithin damaged cells. Generally, the or US No. 2 tubers (combined intoexpectedduringseasonswithdrypotato tuber skin is not broken mak-the column Defects in Table 2).growing conditions. The general rat- ingblackspotbruisesdifficultto Freshmarketqualityattributesareing scores, are essentially the breed- detectwithoutpeeling.Ourpro-summarized in Table 1 and Figure 1,er merit score given at grading. Thegramusesarelativelyrapidtech-MAY/JUNE 2023 POTATO GROWER 17'