Browsing by Author "Barnett, Marla D."

Now showing 1 - 4 of 4
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    Identification of Quantitative Resistance to Puccinia striiformis and Puccina triticinia in the Soft Red Winter Wheat Cultivar 'Jamestown'
    Carpenter, Neal R.; Griffey, Carl A.; Malla, Subas; Barnett, Marla D.; Marshall, David; Fountain, Myron O.; Murphy, Joseph Paul; Milus, Eugene; Johnson, Jerry W.; Buck, James; Chao, Shiaoman; Brown-Guedira, Gina L.; Wright, Emily (2017-11)
    Disease resistance is critical in soft red winter wheat (Triticum aestivum L.) cultivars. Leaf rust caused by Puccinia triticina Eriks and stripe rust caused by Puccinia striiformis Westend. f. sp. tritici Eriks. are destructive pathogens of wheat. Phenotypic data were collected at diverse locations for resistance to leaf rust (North Carolina, Texas, and Virginia) and stripe rust (Arkansas, North Carolina, Georgia, Texas, and Virginia) in a Pioneer '25R47' /'Jamestown' (P47/JT) population composed of 186 FDX5:9 recombinant inbred lines (RILs). The P47/JT RILs were geno-typed with a public 90K iSelect single-nucleotide polymorphism array. Analysis of the P47/ JT population identified two quantitative trait loci (QTL) for leaf rust resistance on chromosome 5B and two QTL for stripe rust resistance on chromosomes 3B and 6A. These QTL were associated with both infection type and disease severity. Phenotypic variation (%) explained by the putative leaf rust resistance QTL of Jamestown on 5B was as high as 22.1%. Variation explained by the putative stripe rust resistance QTL of Jamestown on 3B and 6A was as high as 11.1 and 14.3%, respectively. Introgression and pyramiding of these QTL with other genes conferring resistance to leaf and stripe rusts via marker-assisted selection will facilitate development of soft red winter wheat cultivars having more durable resistance.
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    Registration of 'LCS Compass' Wheat
    Liu, L.; Barnett, Marla D.; Griffey, Carl A.; Malla, Subas; Brooks, Wynse S.; Seago, John E.; Kirby, K.; Thomason, Wade E.; Rucker, E. G.; Behl, Harry D.; Pitman, Robert M.; Dunaway, David W.; Vaughn, Mark E.; Custis, J. Tommy; Seabourn, Bradford W.; Chen, R.; Fountain, Myron O.; Marshall, D.; Graybosch, Robert A.; Divis, L. A.; Hansen, L. E.; Cowger, C.; Cambron, Sue; Jin, Y.; Beahm, Bruce R.; Hardiman, Thomas H.; Lin, C. J.; Mennel, D. Ford; Mennel, Donald L. (2018-12-13)
    'LCS Compass' (Reg. No. CV-1149, PI 675458), a hard red winter (HRW) wheat (Triticum aestivum L.), was developed and tested as VA10HRW-13 and co-released by the Virginia Agricultural Experiment Station and Limagrain Cereal Seeds, LLC, in 2015. LCS Compass was derived from the cross 'Vision 20' /'Stanof' using a modified bulk breeding method. LCS Compass is a widely adapted, high-yielding, awned, semidwarf (Rht1) HRW wheat with early to medium maturity and resistance or moderate resistance to diseases prevalent in the mid-Atlantic and Great Plains regions of the United States. In the 2013 Uniform Bread Wheat Trial conducted over 18 locations in eastern states, LCS Compass produced an average grain yield of 4609 kg ha(-1) that was similar to 'Vision 30' (4697 kg ha(-1)). In the northern Great Plains, the average grain yield of LCS Compass (4015 kg ha(-1)) over 44 locations in 2013 was similar to 'Jerry' (4013 kg ha(-1)). In the South Dakota crop zone 3 variety test, LCS Compass had a 3-yr (2015-2017) yield average of 5575 kg ha(-1) and was one of highest-yielding cultivars among the 19 cultivars tested over the 3-yr period. LCS Compass has good end-use quality in both the eastern and Great Plains regions of the United States.
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    Registration of 'LCS Wizard' Wheat
    Liu, L.; Barnett, Marla D.; Griffey, Carl A.; Malla, Subas; Brooks, Wynse S.; Seago, John E.; Butler, H.; Thomason, Wade E.; Rucker, E. G.; Behl, Harry D.; Pitman, Robert M.; Dunaway, David W.; Vaughn, Mark E.; Custis, J. Tommy; Seabourn, Bradford W.; Chen, R.; Fountain, Myron O.; Marshall, D.; Graybosch, Robert A.; Divis, L. A.; Hansen, L. E.; Cowger, C.; Cambron, Sue; Jin, Y.; Beahm, Bruce R.; Hardiman, Thomas H.; Lin, C. J.; Mennel, D. Ford; Mennel, Donald L. (2016-01)
    The objective of this research was to develop widely adapted hard winter wheat (Triticum aestivum L.) varieties to meet the needs of mills, bakeries, and consumers in the eastern and Great Plains regions of the United States. 'LCS Wizard' (Reg. No. CV-1111, PI 669574), a hard red winter (HRW) wheat, was developed and tested as VA08HRW-80 and co-released by the Virginia Agricultural Experiment Station and Limagrain Cereal Seeds, LLC in 2013. LCS Wizard was derived from the three-way cross S.6742/92PAN1#33//92PIN#107 using a modified bulk breeding method. LCS Wizard is a widely adapted, high-yielding, awned, semidwarf (Rht1) HRW wheat with midseason spike emergence and resistance or moderate resistance to diseases prevalent in the mid-Atlantic and Great Plains regions. In the 2014 Uniform Bread Wheat Trial conducted over 17 locations in eastern states, LCS Wizard produced an average grain yield of 4717 kg ha(-1), similar to 'Vision 45' (4650 kg ha(-1)). In the northern Great Plains, the average grain yield over 54 locations in 2012 of LCS Wizard (4419 kg ha(-1)) was slightly lower than that of 'Overland' (4659 kg ha(-1)). In the southern Great Plains, its average grain yield (3844 kg ha(-1)) over 85 locations was slightly higher than that of Fuller (3757 kg ha(-1)). LCS Wizard has acceptable end-use quality in both the eastern and Great Plains regions of the United States.
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    Registration of 'Vision 50' Wheat
    Liu, L.; Barnett, Marla D.; Griffey, Carl A.; Malla, Subas; Brooks, Wynse S.; Seago, John E.; Fitzgerald, Joshua; Thomason, Wade E.; Rucker, E. G.; Behl, Harry D.; Pitman, Robert M.; Dunaway, David W.; Vaughn, Mark E.; Custis, J. Tommy; Seabourn, Bradford W.; Chen, R.; Fountain, Myron O.; Marshall, D.; Cowger, C.; Cambron, Sue; Jin, Y.; Beahm, Bruce R.; Browning, Phillip; Hardiman, Thomas H.; Lin, C. J.; Mennel, D. Ford; Mennel, Donald L. (2019-03-28)
    'Vision 50' (Reg. No. CV-1152, PI 679953), a hard red winter (HRW) wheat (Triticum aestivum L.) cultivar, was derived from the cross 'Jagalene'/'Provinciale' using a modified bulk breeding method. Vision 50 was tested as VA09HRW-64 in replicated yield trials in Virginia (2011-2017) and in the USDAARS Uniform Bread Wheat Trials (2012-2017) and released by the Virginia Agricultural Experiment Station in 2016. Vision 50 is a widely adapted, high-yielding, awned, semidwarf (unknown Rht gene) HRW wheat having mid-to late-season spike emergence, strong straw strength, and resistance or moderate resistance to diseases prevalent in the mid-Atlantic region. In the Virginia Bread Wheat Elite Test from 2014 to 2017, Vision 50 produced a mean yield of 5067 kg ha(-1) that was similar to the highest-yielding (5757 kg ha(-1)) cultivar Shirley, a soft red winter wheat check. Vision 50 has acceptable end-use quality on the basis of comparisons with the HRW wheat check cultivar Jagger for wheat protein (11.3 vs. 12.2 g 100 g(-1)), flour yield (72.7 vs. 66.4 g 100 g(-1)), flour water absorption (59.5 vs. 62.3 g 100 g(-1)), dough mixing tolerance (2.7 vs. 3.0), pup-loaf volume (815 vs. 822 cm(3)), and crumb grain scores (4.2 vs. 3.8).