b'Larimore,Oakes,ParkRapidscon- lizingamodifiedtote.Insulation breeding more quickly by utilizing atinue to show excellent results. The improvementsandductworkhas genomicselectioncycle.DiploidselectionND081571-2Rislooking allowed to different storage temper- potatoes would be much faster andgood. Fresh potato trials have good atures, 40 and 46 F. Dr. Haagenson developinginbred-hybridbreedingresults. Chip potato yields were low is working with Dr. Andy Robinson program could increase yield like inandqualityvariedbecauseofthe ondormancyofred-andyellow- corn. They would like to continuedryconditions.Manypromising skinned tubers. He is also looking at dihaploid extraction in red- and rus-fresh market lines with reds, red/yel- dormancy and processing quality of set-skinnedpotatoes.Currently,lows,chippinglinesanddual-pur- processingpotatotuberswithDr. they are working on old germplasmpose russets are being evaluated.Carl Rosen and Dr. Sanjay Gupta.with about 40 clones. MN13142 is apromising line that is very dormantDr.GupingYanreportedonher Dr.HarleneHatterman-Valenti, and does not sprout after 9 monthsproject,EvaluationofCoveCrops recounted her work on the Effects of in storage at 50 F. forManagingtheRoot-lesion SingleandRepeatHailEventsonNematode, Pratylenchus penetrans. In RussetBurbankandClearwater Jed Grow, a masters student underher work she has been evaluating a Potato.Simulatedhailinjuryin Dr.AndyRobinsonsdirectionisvariety of cover crops to determine RussetBurbankandClearwaterat reportedonhisproject,iftheyarehoststorootlesion tuberinitiation(43DAP),endof DevelopmentofIdealAgronomicsnematoes,Pratylenchuspenetrans. tuberinitiation(55DAP),early andNutrientManagementforThe results showed a wide range of tuberbulking(77DAP)andmid AdvancedChippingSelections.Indifferences.Winterrye(Dylan) bulking (91 DAP). They used 50 and 2019 a study was conducted to eval-eliminated all the nematodes initial- 99%defoliation.RussetBurbank uateDakotaPearl,ND7799c-1andlyinoculatedinthesoil.Oilseed seemed to recover with new foliage ND7519-1 with 3 row spacings andradish (Control, Image, Concorde), growth quicker than Clearwater. All 4 nitrogen rates. Across all the culti-annualryegrass,turnip(Pointer), simulatedhailtreatmentsreduced vars/selectionsthehighestmar-and daikon radish (Eco-till) reduced totalyield.Any100%defoliation ketable yield was found at the 80 lbmorethan90%ofinitialpopula- causedover50%tion.Camelina(Bison)andforage yield loss. Hail had apea(Arvika)weretheonlycover greaterinfluenceoncrops having final population more tubersizereductionthan non-planted control. thanfortubernum-ber reduction.Dr.DarrinHaagensonprovidedHighlightsfromtheUSDA-ARS Dr.LauraShannonStorageResearch.Thereisnew gaveanupdateonequipmentnowattheUSDA-ARS theUniversityofworksite in East Grand Forks, MN. A MinnesotaPotatonewgraderfromAgRayequipped BreedingProgram.with X-ray technology will provide Her group is develop-moreinformationwhengrading inggermplasmastubers. Some features include length tetraploidsandby width by depth, optical sorting, diploids.Theyareand color. They are simulating pile tryingtomovepressure with a bottle jack and uti- through the cycle ofMARCH 2020 POTATO GROWER 21'