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

to soil insect pests and fusarium wilt. ‘Liberty’ makes a large number of uniform, well-shaped storage roots with a scarlet skin color, cream to light yellow flesh color, and good baking quality. ‘Liberty’ is a desirable cultivar for commercial

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Arthur Villordon, Ron Sheffield, Jose Rojas, and Yin-Lin Chiu

furrow irrigation (after 35 DAT). At harvest, storage roots were graded according to USDA standards ( U.S. Department of Agriculture, 2005 ): US1 (5.1 to 8.9 cm in diameter and 7.6 to 22.9 cm in length), canner (CAN; 2.5 to 5.1 cm in diameter and 5.1 to

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Donnie K. Miller, Thomas M. Batts, Josh T. Copes, and David C. Blouin

yield production requires adventitious roots to effectively produce lateral roots that swell and produce mature storage roots ( Villordon et al., 2014 ). Previous research has indicated that in pot studies at ≈5 to 15 d post-transplant, adventitious

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Alexandre Furtado Silveira Mello, Giovani Olegário da Silva, Juscimar da Silva, Tarcísio Samborski, José Carlos Ferreira, José Luiz Viana de Carvalho, Marília Regini Nuti, Ana Carolina Silva Siquieroli, Marcos Brandão Braga, Federico Celedonio Diaz Trujilo, and Wolfgang Grüneberg

with synthetic fertilizers, with the exception of Canoinhas, SC and Uberlandia, MG that did not receive any fertilizer. Storage roots were harvested an average of 157 d after planting. Yield data were adjusted according to plot size and is presented in

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Cecilia E. McGregor, Douglas W. Miano, Don R. LaBonte, Mary Hoy, Chris A. Clark, and Guilherme J.M. Rosa

sporamin and cell wall expansion proteins. Sporamin is the main storage protein in sweetpotato storage roots and it makes up between 60% and 80% of total soluble protein in the root ( Maeshima et al., 1985 ). It is encoded by a multigene family that can be

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Jim C. Cervantes-Flores, G. Craig Yencho, Kenneth V. Pecota, Bryon Sosinski, and Robert O.M. Mwanga

Root-knot nematodes are widespread worldwide and cause significant reductions in the yield and quality of storage roots in sweetpotato ( Clark and Moyer, 1988 ). The worldwide distribution of root-knot nematodes (RKN), Meloidogyne Goeldi species

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Jeffrey Adelberg, Maria Delgado, and Jeffrey Tomkins

for numbers of plants produced ( Takayama and Akita, 2005 ). Geophytes, and other herbaceous perennials with storage roots, have been most readily adaptable to bioreactor environments. The proportion of explants to media volume and vessel size must

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Rebecca G. Sideman

average of 438 bushels/acre ( USDA, 2015 ). High light intensity and long days have been shown to increase number of sweetpotato storage roots, whereas formation and development of storage roots is promoted by short days ( Lebot, 2008 ). Comparing the

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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

performed as well as or better than the local checks across districts ( Table 5 ). The two cultivars have higher beta-carotene in storage roots than Dimbuka-Bukulula ( Table 2 ). These two cultivars have moderate beta-carotene content compared with cultivars

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

dry matter (DM) of storage roots and vines, 200 g from each clone was oven-dried at 65 °C to constant weight, and DM was computed as a percentage of the fresh weight. Selection of dual-purpose clones was based on the ratio of roots to vines in terms of