Sweetpotato genotypes ‘CIP BRS Nuti’ and ‘Canadense’ are resistant to Meloidogyne incognita, M. javanica, and M. enterolobii

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dc.creatorMello, Alexandre F. S.
dc.creatorSilva, Gabriela
dc.creatorde Sousa, Raquel L.
dc.creatorBarbosa, Alexandre V. S.
dc.creatorNakasu, Erich Y. T.
dc.creatorSilva, Giovani O.
dc.creatorBiscaia, Danielle
dc.creatorPinheiro, Jadir B.
dc.date2022-04-01
dc.date2025-07-07T18:45:28Z
dc.date2025-07-07T18:45:28Z
dc.date.accessioned2026-06-27T15:06:22Z
dc.descriptionSweetpotato is a staple crop in Brazil presenting a smaller number of pathogens and diseases in comparison with other root and tuberous crops. Root-knot nematodes are among the most serious sweetpotato root pathogens. The impact of these pathogens also extends to succeeding crops. Because in Brazil, it is common to cultivate more than one crop per season, this problem is rapidly disseminated. The aim of this study was to assess the resistance of two sweetpotato clones and four commercial sweetpotato genotypes to three different Meloidogyne species. Assays were performed under greenhouse and field conditions. ‘CIP BRS Nuti’ and ‘Canadense’ were resistant to Meloidogyne incognita, M. javanica, and M. enterolobii under greenhouse conditions. This finding was obtained based on the reproduction factor < 0.2, meaning that the initial population of 5,000 nematodes was reduced to <1,000 individuals after 90 days of inoculation. Tomato and sweetpotato cultivar Beauregard, known to be susceptible to the three nematode species, were highly damaged by the pathogens. Similar results were also observed under field conditions. To our knowledge, ‘CIP BRS Nuti’ and ‘Canadense’ are the first South American commercial cultivars with triple nematode resistance.
dc.identifierhttps://hdl.handle.net/10568/175520
dc.identifier.urihttp://hdl.handle.net/123456789/94695
dc.languageen
dc.publisherAmerican Phytopathological Society
dc.rightsOpen Access
dc.sourceMello, Alexandre F. S.; Silva, Gabriela; de Sousa, Raquel L.; Barbosa, Alexandre V. S.; Nakasu, Erich Y. T.; Silva, Giovani O.; et al. 2022. Sweetpotato genotypes ‘CIP BRS Nuti’ and ‘Canadense’ are resistant to Meloidogyne incognita, M. javanica, and M. enterolobii, Plant Disease 106(4): 1085-1212. https://doi.org/10.1094/PDIS-06-21-1194-RE
dc.subjectsweet potatoes
dc.subjectdiseases
dc.subjectpathogens
dc.subjectgenotypes
dc.subjectagriculture
dc.titleSweetpotato genotypes ‘CIP BRS Nuti’ and ‘Canadense’ are resistant to Meloidogyne incognita, M. javanica, and M. enterolobii
dc.typeJournal Article

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