Soft Red Winter Wheat Elite Germplasm Screening and Evaluation for Stripe Rust in the US Southeast Region
Stripe rust is a severe disease affecting wheat (<i>Triticum aestivum</i> L.) production in the United States Southeast region, necessitating the identification of resistant sources. The study was conducted at the University of Arkansas, Fayetteville, and utilized a Randomized Block Desi...
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MDPI AG
2024-11-01
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| author | Ehsan Shakiba Noah DeWitt Ali Babar Richard E. Boyles Mohamed Mergoum Russell Sutton Jeanette Lyerly Paul Murphy Stephen Harrison |
| author_facet | Ehsan Shakiba Noah DeWitt Ali Babar Richard E. Boyles Mohamed Mergoum Russell Sutton Jeanette Lyerly Paul Murphy Stephen Harrison |
| author_sort | Ehsan Shakiba |
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| description | Stripe rust is a severe disease affecting wheat (<i>Triticum aestivum</i> L.) production in the United States Southeast region, necessitating the identification of resistant sources. The study was conducted at the University of Arkansas, Fayetteville, and utilized a Randomized Block Design over three years. A total of 1130 lines were inoculated annually, and their responses for stripe rust were recorded. The results revealed that 11%, 79%, and 77% of the lines showed resistance in the first, second, and third years, respectively, with an overall 50% of the whole population. Linear Mixed Model and Generalized Estimating Equation analyses highlighted environmental influences, with cooler, humid conditions in 2021 favoring stripe rust, while warmer, variable conditions in 2022 and stable weather in 2023 contributed to lower disease severity. Data analysis of infection rates and disease development indicated that the newer generations of wheat lines tested in 2022 and 2023 exhibited higher resistance lines, lower infection rates, and slower disease progression. The findings support targeted breeding strategies for durable stripe rust resistance, emphasizing the importance of multi-environment testing and selection of lines with adult-plant resistance traits. This research offers valuable insights for breeders, agronomists, and farmers aiming to mitigate stripe rust impact through improved cultivars and informed management practices. |
| format | Article |
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| institution | Kabale University |
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| language | English |
| publishDate | 2024-11-01 |
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| series | Agriculture |
| spelling | doaj-art-97a8cc2a26e64bada57cde8ad1bdd7722024-12-27T14:02:49ZengMDPI AGAgriculture2077-04722024-11-011412214010.3390/agriculture14122140Soft Red Winter Wheat Elite Germplasm Screening and Evaluation for Stripe Rust in the US Southeast RegionEhsan Shakiba0Noah DeWitt1Ali Babar2Richard E. Boyles3Mohamed Mergoum4Russell Sutton5Jeanette Lyerly6Paul Murphy7Stephen Harrison8Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR 72701, USASchool of Plant, Environmental & Soil Sciences, Louisiana State University, Baton Rouge, LA 70803, USAAgronomy Department, University of Florida, Gainesville, FL 32611, USAPee Dee Research and Educational Center, Clemson University, Florance, SC 29506, USADepartment of Crop and Soil Sciences, University of Georgia, Athens, GA 30602, USATexas A&M AgriLife Research, Texas A&M University, College Station, TX 77840, USADepartment of Crop and Soil Sciences, North Carolina State University, Raleigh, NC 27695, USADepartment of Crop and Soil Sciences, North Carolina State University, Raleigh, NC 27695, USASchool of Plant, Environmental & Soil Sciences, Louisiana State University, Baton Rouge, LA 70803, USAStripe rust is a severe disease affecting wheat (<i>Triticum aestivum</i> L.) production in the United States Southeast region, necessitating the identification of resistant sources. The study was conducted at the University of Arkansas, Fayetteville, and utilized a Randomized Block Design over three years. A total of 1130 lines were inoculated annually, and their responses for stripe rust were recorded. The results revealed that 11%, 79%, and 77% of the lines showed resistance in the first, second, and third years, respectively, with an overall 50% of the whole population. Linear Mixed Model and Generalized Estimating Equation analyses highlighted environmental influences, with cooler, humid conditions in 2021 favoring stripe rust, while warmer, variable conditions in 2022 and stable weather in 2023 contributed to lower disease severity. Data analysis of infection rates and disease development indicated that the newer generations of wheat lines tested in 2022 and 2023 exhibited higher resistance lines, lower infection rates, and slower disease progression. The findings support targeted breeding strategies for durable stripe rust resistance, emphasizing the importance of multi-environment testing and selection of lines with adult-plant resistance traits. This research offers valuable insights for breeders, agronomists, and farmers aiming to mitigate stripe rust impact through improved cultivars and informed management practices.https://www.mdpi.com/2077-0472/14/12/2140screeningsoft red winter wheatstripe rustlinear mixed modegeneralized estimating equationsresistance |
| spellingShingle | Ehsan Shakiba Noah DeWitt Ali Babar Richard E. Boyles Mohamed Mergoum Russell Sutton Jeanette Lyerly Paul Murphy Stephen Harrison Soft Red Winter Wheat Elite Germplasm Screening and Evaluation for Stripe Rust in the US Southeast Region Agriculture screening soft red winter wheat stripe rust linear mixed mode generalized estimating equations resistance |
| title | Soft Red Winter Wheat Elite Germplasm Screening and Evaluation for Stripe Rust in the US Southeast Region |
| title_full | Soft Red Winter Wheat Elite Germplasm Screening and Evaluation for Stripe Rust in the US Southeast Region |
| title_fullStr | Soft Red Winter Wheat Elite Germplasm Screening and Evaluation for Stripe Rust in the US Southeast Region |
| title_full_unstemmed | Soft Red Winter Wheat Elite Germplasm Screening and Evaluation for Stripe Rust in the US Southeast Region |
| title_short | Soft Red Winter Wheat Elite Germplasm Screening and Evaluation for Stripe Rust in the US Southeast Region |
| title_sort | soft red winter wheat elite germplasm screening and evaluation for stripe rust in the us southeast region |
| topic | screening soft red winter wheat stripe rust linear mixed mode generalized estimating equations resistance |
| url | https://www.mdpi.com/2077-0472/14/12/2140 |
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