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Evaluation of the U.S. Peanut Germplasm Mini-Core Collection in the Virginia-Carolina Region Using Traditional and New High-Throughput Methods

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dc.contributor.authorSarkar, Sayantanen
dc.contributor.authorOakes, Josephen
dc.contributor.authorCazenave, Alexandre-Briceen
dc.contributor.authorBurow, Mark D.en
dc.contributor.authorBennett, Rebecca S.en
dc.contributor.authorChamberlin, Kelly D.en
dc.contributor.authorWang, Ningen
dc.contributor.authorWhite, Melanieen
dc.contributor.authorPayton, Paxtonen
dc.contributor.authorMahan, Jamesen
dc.contributor.authorChagoya, Jenniferen
dc.contributor.authorSung, Cheng-Jungen
dc.contributor.authorMcCall, David S.en
dc.contributor.authorThomason, Wade E.en
dc.contributor.authorBalota, Mariaen
dc.date.accessioned2022-08-25T12:22:46Zen
dc.date.available2022-08-25T12:22:46Zen
dc.date.issued2022-08-18en
dc.date.updated2022-08-25T11:18:14Zen
dc.description.abstractPeanut (<i>Arachis hypogaea</i> L.) is an important food crop for the U.S. and the world. The Virginia-Carolina (VC) region (Virginia, North Carolina, and South Carolina) is an important peanut-growing region of the U.S and is affected by numerous biotic and abiotic stresses. Identification of stress-resistant germplasm, along with improved phenotyping methods, are important steps toward developing improved cultivars. Our objective in 2017 and 2018 was to assess the U.S. mini-core collection for desirable traits, a valuable source for resistant germplasm under limited water conditions. Accessions were evaluated using traditional and high-throughput phenotyping (HTP) techniques, and the suitability of HTP methods as indirect selection tools was assessed. Traditional phenotyping methods included stand count, plant height, lateral branch growth, normalized difference vegetation index (NDVI), canopy temperature depression (CTD), leaf wilting, fungal and viral disease, thrips rating, post-digging in-shell sprouting, and pod yield. The HTP method included 48 aerial vegetation indices (VIs), which were derived using red, blue, green, and near-infrared reflectance; color space indices were collected using an octocopter drone at the same time, with traditional phenotyping. Both phenotypings were done 10 times between 4 and 16 weeks after planting. Accessions had yields comparable to high yielding checks. Correlation coefficients up to 0.8 were identified for several Vis, with yield indicating their suitability for indirect phenotyping. Broad-sense heritability (H<sup>2</sup>) was further calculated to assess the suitability of particular VIs to enable genetic gains. VIs could be used successfully as surrogates for the physiological and agronomic trait selection in peanuts. Further, this study indicates that UAV-based sensors have potential for measuring physiologic and agronomic characteristics measured for peanut breeding, variable rate input application, real time decision making, and precision agriculture applications.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSarkar, S.; Oakes, J.; Cazenave, A.-B.; Burow, M.D.; Bennett, R.S.; Chamberlin, K.D.; Wang, N.; White, M.; Payton, P.; Mahan, J.; Chagoya, J.; Sung, C.-J.; McCall, D.S.; Thomason, W.E.; Balota, M. Evaluation of the U.S. Peanut Germplasm Mini-Core Collection in the Virginia-Carolina Region Using Traditional and New High-Throughput Methods. Agronomy 2022, 12, 1945.en
dc.identifier.doihttps://doi.org/10.3390/agronomy12081945en
dc.identifier.urihttp://hdl.handle.net/10919/111636en
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectpeanuten
dc.subjectU.S. mini-core collectionen
dc.subjectVirginia-Carolina regionen
dc.subjectvegetation indicesen
dc.subjecthigh-throughput phenotypingen
dc.subjectcolor space indicesen
dc.subjectcrop physiologyen
dc.titleEvaluation of the U.S. Peanut Germplasm Mini-Core Collection in the Virginia-Carolina Region Using Traditional and New High-Throughput Methodsen
dc.title.serialAgronomyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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Journal Articles, Multidisciplinary Digital Publishing Institute (MDPI)
Scholarly Works, School of Plant and Environmental Sciences
Scholarly Works, Virginia Agricultural Experiment Station