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Benard Yada, Phinehas Tukamuhabwa, Bramwell Wanjala, Dong-Jin Kim, Robert A. Skilton, Agnes Alajo, and Robert O.M. Mwanga

). Therefore, identification of parental genotypes with high sweetpotato virus disease (SPVD), Alternaria blight disease and pest resistance, yield, and dry matter content for breeding is critical in Uganda. The National Crops Resources Research Institute

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Christopher A. Clark, Tara P. Smith, Donald M. Ferrin, and Arthur Q. Villordon

of common viruses on yield and quality of Beauregard sweetpotato in Louisiana Plant Dis. 90 83 88 Clark, C.A. Valverde, R.A. Fuentes, S. Salazar, L.F. Moyer, J.W. 2002 Research for improved management of sweetpotato pests and diseases: Cultivar

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Damien Shumbusha, Jean Ndirigwe, Lydia Kankundiye, Anastasie Musabyemungu, Daphrose Gahakwa, Phanuel S. Ndayemeye, and Robert O.M. Mwanga

field resistance to sweetpotato virus disease (SPVD) and Alternaria bataticola blight and yield higher (8.3 to 22.8 t·ha −1 ) than the average storage root yield of 6.0 t·ha −1 [ FAOSTAT, 2011 ; International Potato Center (CIP), 1999 ]. Two of the

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D. Michael Jackson, Janice R. Bohac, Judy A. Thies, and Howard F. Harrison

baked roots of ‘Charleston Scarlet’ and six standard sweetpotato cultivars at the U.S. Vegetable Laboratory, Charleston, SC, 2006–2008. Disease Reactions Resistance of ‘Charleston Scarlet’ to fusarium wilt [ Fusarium oxysporum f. sp

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Robert O.M. Mwanga, Charles Niringiye, Agnes Alajo, Benjamin Kigozi, Joweria Namukula, Isaac Mpembe, Silver Tumwegamire, Richard W. Gibson, and G. Craig Yencho

good to excellent consumer acceptance, depending on growth conditions. The cultivar has moderate to high field resistance to sweetpotato virus disease (SPVD) and Alternaria bataticola blight. Both diseases can be devastating, causing high storage root

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Robert O.M. Mwanga, Gerald Kyalo, Gorrettie N. Ssemakula, Charles Niringiye, Benard Yada, Milton A. Otema, Joweria Namakula, Agnes Alajo, Benjamin Kigozi, Rose N.M. Makumbi, Anna-Marie Ball, Wolfgang J. Grüneberg, Jan W. Low, and G. Craig Yencho

field resistance to sweetpotato virus disease (SPVD) and alternaria bataticola blight. The two cultivars were bred targeting development of vitamin A–rich (biofortified) orange-fleshed sweetpotato (OFSP). OFSP have been shown to be both effective for

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Benard Yada, Gina Brown-Guedira, Agnes Alajo, Gorrettie N. Ssemakula, Robert O.M. Mwanga, and G. Craig Yencho

sweetpotato virus disease (SPVD) resistant, high dry matter content, and white-fleshed released Ugandan landrace cultivar ( Mwanga et al., 2001 ; Stevenson et al., 2009 ). ‘Beauregard’ (male) is a weevil and SPVD susceptible, low dry matter content, and

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Susan C. Miyasaka, Marisa Wall, Don LaBonte, and Alton Arakaki

country of origin, skin and flesh color, and frequency of inclusion in multiple field trials at Pepe`ekeo, HI. Sweetpotato accessions were obtained originally as disease-tested, tissue-cultured plantlets from the U.S. Department of Agriculture (USDA

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Arthur Villordon and Christopher Clark

‘Beauregard’ sweetpotato plants infected with a complex of viruses ( Villordon and Clark, 2014 ). Such findings provide evidence about the potential influence of biotic factors on RSA development in sweetpotato. The primary objective of this work was to

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Susan L. Barkley, Jonathan R. Schultheis, Sushila Chaudhari, Suzanne D. Johanningsmeier, Katherine M. Jennings, Van-Den Truong, and David W. Monks

sugars Amer. J. Physiol. 73 387 396 Bryan, A.D. Pesic-VanEsbroeck, Z. Schultheis, J.R. Pecota, K.V. Swallow, W.H. Yencho, G.C. 2003 Cultivar decline in sweetpotato: I. Impact of micropropagation on yield, storage root quality, and virus incidence in