Publications by Colleges and Departments (MSU - Bozeman)
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Item TAMFT‐3A and TAMFT‐3B2 homeologs are associated with wheat preharvest sprouting(Wiley, 2022-08) Vetch, Justin Michael; Tillett, Brandon J.; Bruckner, Phil L.; Martin, John M.; Marlowe, Karol; Hooker, Marcus Alan; See, Deven Robert; Giroux, Michael J.The phenomenon of preharvest sprouting (PHS), caused by rain after physiological maturity and prior to harvest, negatively affects wheat (Triticum aestivum L.) production and end use. Investigating the genetics that control PHS resistance may result in increased control of seed dormancy. Multiple genes involved in the development of seed dormancy are associated with PHS. In this study, the TaMFT (3A, 3B1, 3B2, 3D), TaMKK3-4A, and TaVP1-3B genes were assessed for association with PHS in a double-haploid line (DHL) hard red winter wheat population derived from a BC1 cross between the cultivars Loma and Warhorse, where Loma was the recurrent and PHS susceptible parent. The 162 BC1 DHL lines were grown over two field seasons and PHS susceptibility was assessed by measuring PHS resistance in physiologically mature heads. The PHS variation was associated with the TaMFT-A and the B2 homeolog with Loma carrying mutant forms of each gene. No sequence variation between Loma and Warhorse was detected in the exons of the TaMFT-B1 and D homeologs. No association between PHS resistance and TaMKK3-4A or TaVp1-3B variation was observed, though Loma and Warhorse vary for TaMKK3-4A and TaVp1-3B mutations reported to be PHS associated. Previous research has shown TaMFT-3A as having a large impact on PHS resistance. In the current study, the TaMFT-3A and TaMFT-3B2 alleles each explained 14% of observed PHS variation. Markers for both TaMFT-3A and TaMFT-3B2 should be used in selecting for increased wheat dormancy and PHS resistance.Item Registration of ‘Bobcat’ hard red winter wheat(Wiley, 2020-06) Bruckner, Phil L.; Berg, Jim E.; Lamb, Peggy F.; Kephart, Ken D.; Eberly, J. O.; Miller, John H.; Chen, C.; Torrion, J. A.; Pradhan, G. P.; Ramsfield, R.; Nash, Deanna L.; Holen, D. L.; Cook, J. P.; Gale, S.; Jin, Y.; Kolmer, J.; Chen, X.; Bai, G.‘Bobcat’ (Reg. no. CV-1161, PI 693235) hard red winter (HRW) wheat (TriticumaestivumL.) was developed and released by the Montana Agricultural Experiment Station in September 2019. Bobcat is of unknown pedigree, derived from a composite of two related single crosses made in 2007: MT0598/98X366-E29-1and 01X258-C1/MT0598. MT0598 is an unreleased, hollow-stem experimental line,and98X366-E29-1and01X258-C1areunreleased,Montana solid-stem experimental lines. Bobcat was developed using a modified bulk breeding method and selected as an F5:6head row. Bobcat was tested under the experimental numberMTS1588 from 2015 to 2019 in Montana. Quality was evaluated in multilocation Montana trials since 2015. Bobcat is a solid-stem, high-yielding HRW wheat cultivar with medium to high test weight, medium maturity, reduced height (Rht-B1b), medium to high grain protein, and acceptable milling and baking quality.Bobcat was released for its improved host plant resistance to wheat stem sawfly(Cephus cinctusNort.) conditioned by stem solidness, along with short stature,and improved yield potential relative to ‘Warhorse’, the current predominant solid-stem cultivar in Montana.Item Registration of ‘Bobcat’ hard red winter wheat(Wiley, 2020-06) Bruckner, Phil L.; Berg, Jim E.; Lamb, Peggy F.; Kephart, Ken D.; Eberly, J. O.; Miller, John H.; Chen, C.; Torrion, J. A.; Pradhan, G. P.; Ramsfield, R.; Nash, Deanna L.; Holen, D. L.; Cook, J. P.; Gale, S.; Jin, Y.; Kolmer, J.; Chen, X.; Bai, G.‘Flathead’ (Reg. no. CV-1164, PI 693237) hard red winter (HRW) wheat (TriticumaestivumL.) was developed and released by the Montana Agricultural Experiment Station in 2019. Flathead was derived from a composite of two very closely related single crosses of the predominant cultivar ‘Yellowstone’ to stripe rust resistant source PI 640431, a hard white spring wheat backcross derivative ofWA007900 that carries stripe rust all-stage resistance genesYr5andYr15.Flat-head was developed using a modified bulk breeding method and selected as anF5:6head row after phenotypic selection for stripe rust resistance at Kalispell,MT. Flathead was tested under the experimental number MT1564 in Montana yield trials from 2015 to 2019. Flathead is a high-yielding HRW wheat cultivar with early maturity,short stature, medium grain protein concentration,excellent milling and baking quality,and a high level of all-stage resistance to predominant races of stripe rust. Flathead was released for its early maturity, improved stripe rust resistance,and improved grain yield relative to other Montana-adapted early heading cultivars.Item Registration of ‘StandClear CLP’ hard red winter wheat(Wiley, 2020-06) Berg, Jim E.; Kephart, Ken D.; Lamb, Peggy F.; Davis, E. S.; Eberly, J. O.; Miller, John H.; Chen, C.; Pradhan, G. P.; Torrion, J. A.; Ramsfield, R.; Smith, V.; Nash, Deanna L.; Holen, D. L.; Cook, J. P.; Gale, S.; Jin, Y.; Chen, X.; Bruckner, Phil L.‘StandClear CLP’ (Reg. no. CV-1162, PI 693236) hard red winter (HRW) wheat(Triticum aestivumL.) was developed and released by the Montana Agricultural Experiment Station and exclusively licensed to Loveland Products, Inc., in 2020.StandClear CLP is a two-gene Clearfield, semisolid-stem wheat intended for use with the selective imidazolinone (IMI) herbicide imazamox. StandClear CLPresulted from a cross of MTS0531 to an IMI herbicide tolerant F1plant from a population segregating for two acetohydroxyacid synthase (AHAS) genes [TaA-HAS1DandTaAHAS1B]. Original herbicide tolerance donors were IMI ‘Fidel’(TX12588*4/FS2, BASF) for alleleTaAHAS1Dvia descended experimental linesMTCL0309 and MTCL0510, and proprietary hard red spring wheat line CDCTeal 11A (BASF Corporation) for alleleTaAHAS1B. StandClear CLP was selectedasaF6:7headrow in 2014 following multiple cycles of phenotypic mass selection for IMI herbicide tolerance and stem solidness. StandClear CLP was tested under the experimental number MTCS1601 from 2016 to 2019 in Montana for field performance, herbicide tolerance, and end-use quality. StandClear CLP is a high-yielding, Clearfield HRW wheat cultivar with intermediate stem solidness,moderate host plant resistance to wheat stem sawfly, and acceptable milling and baking quality.Item Registration of ‘StandClear CLP’ hard red winter wheat(2020-06) Berg, Jim E.; Kephart, Ken D.; Lamb, Peggy F.; Davis, Edward S.; Eberly, Jed O.; Miller, John H.; Chen, Chengci; Pradhan, G. P.; Torrion, Jessica A.; Ramsfield, Ron; Smith, Vincent H.; Nash, Deanna L.; Holen, Doug L.; Cook, Jason P.; Gale, Sam; Jin, Yue; Chen, X.; Bruckner, Phil L.‘StandClear CLP’ (Reg. no. CV-1162, PI 693236) hard red winter (HRW) wheat (Triticum aestivum L.) was developed and released by the Montana Agricultural Experiment Station and exclusively licensed to Loveland Products, Inc., in 2020. StandClear CLP is a two-gene Clearfield, semisolid-stem wheat intended for use with the selective imidazolinone (IMI) herbicide imazamox. StandClear CLP resulted from a cross of MTS0531 to an IMI herbicide tolerant F1 plant from a population segregating for two acetohydroxyacid synthase (AHAS) genes [TaAHAS1D and TaAHAS1B]. Original herbicide tolerance donors were IMI ‘Fidel’ (TX12588*4/FS2, BASF) for allele TaAHAS1D via descended experimental lines MTCL0309 and MTCL0510, and proprietary hard red spring wheat line CDC Teal 11A (BASF Corporation) for allele TaAHAS1B. StandClear CLP was selected as a F6:7 headrow in 2014 following multiple cycles of phenotypic mass selection for IMI herbicide tolerance and stem solidness. StandClear CLP was tested under the experimental number MTCS1601 from 2016 to 2019 in Montana for field performance, herbicide tolerance, and end-use quality. StandClear CLP is a high-yielding, Clearfield HRW wheat cultivar with intermediate stem solidness, moderate host plant resistance to wheat stem sawfly, and acceptable milling and baking quality.Item Registration of 'Northern' Hard Red Winter Wheat(2016-05) Berg, Jim E.; Lamb, Peggy F.; Miller, John H.; Wichman, David M.; Kephart, Ken D.; Stougaard, Robert N.; Pradhan, G. P.; Nash, Deanna L.; Grey, William E.; Gettel, D.; Gale, Sam; Jin, Yue; Kolmer, J. A.; Chen, X.; Bai, G.; Murray, T. D.; Bruckner, Phil L.Northern' (Reg. No. CV-1114, PI 676026) hard red winter wheat (Triticum aestivum L.) was developed and released by the Montana Agricultural Experiment Station in 2015. Northern was derived from a composite of two crosses, MT9982//MTW0072/NW97151 and MTW0047//MTW0072/NW97151. Northern was developed using a modified bulk breeding method and selected as an F-5:7 headrow. Northern was tested under the experimental number MT0978 in Montana yield trials from 2009 to 2015. Like predominant cultivar Yellowstone, Northern is a high-yielding, winter-hardy hard red winter wheat cultivar with medium to late maturity, medium to high grain protein, and acceptable milling and baking quality. Northern was released for its excellent performance in winter wheat production environments of north-central Montana, reduced plant height, and improved grain volume weight and resistance to stem rust (caused by Puccinia graminis Pers.: Pers. f. sp. tritici Eriks. & E. Henn.) relative to Yellowstone.Item Oat Variety Evaluation in Re-Crop Trials at Moccasin (2000)(Central Agricultural Research Center, 2000) Berg, Jim E.; Blake, Tom; Bruckner, Phil L.; Hensleigh, Pat F.; Lanning, Susan P.; Philips, Dave; Sharp, Gail L.; Talbert, Luther E.; Vavrovsky, Joe; Wargo, Judee; Wichman, David M.This report evaluates the agronomic performance of oat varieties under no-till recrop conditions at Moccasin. The 2000 no-till recrop oat trial was seeded into barley stubble. Soil moisture was fair to good for seeding in the spring. The surface soil was almost mud due to the shade and shelter provided by the standing stubble and chaff. The no-till recrop yields were slightly reduced due to the low precipitation levels during the 2000 crop year. The combination of good vegetation control and the water conservation provided with no-till provided for good yields in a dry year.Item Winter Wheat Variety Evaluation in Off-Station and Re-Crop Trials Near Moccasin, Denton, Fort Benton, Moore, and Winifred (2000)(Central Agricultural Research Center, 2000) Berg, Jim E.; Bruckner, Phil L.; Philips, Dave; Sharp, Gail L.; Vavrovsky, Joe; Wargo, Judee; Wichman, David M.This report evaluates the performance of winter wheat varieties in environments and cropping methods. Dry conditions resulted in lower than average yields at all sites with the exception of Moccasin where re-crop wheat followed barley. Growing season precipitation of 3.9 inches at the Fort Benton site contributed to low yields ranging from 8.8 to 12.6 bu/a. Yields were highest at the Moccasin site ranging from 35.8 to 46.2 bu/a. No yields were recorded at the Denton site due to a plugged opener during seeding that resulted in non-uniform plots. Grain protein was lowest at the Denton site and highest at the Fort Benton site. Although moisture for the 2000 crop season was generally higher than that received the previous year, timing of rainfall contributed to a lower than average yield at most sites. Yields at the Moccasin site met the seven-year average for cultivars grown at that site. Yields at all other sites were well below their ten-year averages as noted in multi-year yield summaries for each site. seeded into spring wheat stubble. The Moccasin trial was seeded into barley stubble. All cultivars had acceptable test weights averaging 61.2 lbs/bu across all sites and all cultivars. TestItem Northern Regional Winter Wheat Performance Nursery (2001)(Central Agricultural Research Center, 2001) Berg, Jim E.; Bruckner, Phil L.; Graybosch, Bob; Sharp, Gail L.; Vavrovsky, Joe; Wichman, David M.This report evaluates winter wheat lines developed throughout the Great Plains and Pacific Northwest for adaptability, agronomic performance, yield, and quality in the Northern Plains and Central Montana. Yields ranged from 41.9 to 64.1 bu/a with the average yield equal to 50.9 bu/a. The nursery was planted on fallow. Low moisture levels resulted in lower than average yields. were below average at 59.6 lbs/bu and proteins averaged 15.3 percent.Item Intrastate, Advanced Yield, and Preliminary Winter Wheat Variety Performance Trials (2001)(Central Agricultural Research Center, 2001) Berg, Jim E.; Bruckner, Phil L.; Sharp, Gail L.; Vavrovsky, Joe; Wichman, David M.This report evaluates agronomic performance of new experimental lines and existing winter wheat varieties in Central Montana. Yields from the Interstate Nursery ranged from 38.3 to 54.4 bu/a with the average equal to 47.2 bu/a. Test weights were lower than average at 57.6 lbs/bu and grain proteins averaged 15.4 percent. Yields of grain varieties grown in the Advanced Yield Winter Wheat Nursery ranged from 41.7 to 57.4 bu/a with the average being 47.2 bu/a. Test weights were below average at 59.5 lbs/bu and grain protein averaged 15.4 percent. Grain yields in the preliminary nurseries ranged from 36.7 to 59.5 bu/a. Yields averaged 47.9 bu/a in the Preliminary A nursery and test weights were below average at 57.6 lbs/bu. Grain yields in the Preliminary B nursery averaged 51.4 bu/a and test weights were average at 60.1 lbs/bu. Soil moisture at seeding time was good and urea was broadcast in early September. Winter survival rates averaged 78 to 84 percent and total annual precipitation of 10.6 inches resulted in lower than normal yields. Lower than average test weights were accompanied by higher than average grain protein levels.