Resistance to Fusarium Wilt in watermelon accessions inoculated by chlamydospores.

Vista sencilla de ítem
dc.contributorANTONIO ELTON SILVA COSTA, UNIVASF; FÁBIO SANCHEZ DA CUNHA, UNIVASF; ALAN DA CUNHA HONORATO, UNIVASF; ALEXANDRE SANDRI CAPUCHO, UNIVASF; RITA DE CASSIA SOUZA DIAS, CPATSA; JERÔNIMO CONSTANTINO BOREL, UNIVASF; FRANCINE HIROMI ISHIKAWA, UNIVASF.
dc.creatorCOSTA, A. E. S.
dc.creatorCUNHA, F. S. da
dc.creatorHONORATO, A. da C.
dc.creatorCAPUCHO, A. S.
dc.creatorDIAS, R. de C. S.
dc.creatorBOREL, J. C.
dc.creatorISHIKAWA, F. H.
dc.date2022-09-14T14:05:51Z
dc.date2022-09-14T14:05:51Z
dc.date2022-09-14
dc.date2018
dc.date.accessioned2026-07-07T05:57:10Z
dc.descriptionThe present study aimed to evaluate different inoculation methods of Fusarium oxysporum f. sp. niveum in watermelon and the reaction of accessions from this crop. Firstly, seven inoculation methods using conidia were tested on the susceptible cultivar Sugar Baby, including the standard dipping method. The methods initially tested were not efficient; therefore, we tested a new methodology using chlamydospores which are fungus survival structures. After the production of chlamydospores in vermiculite enriched with liquid culture media potato and sucrose (PS), the new method was tested on an experiment comparing inoculation by conidia and chlamydospores. For the conidia method, the plants were inoculated after their final leaf formed. For chlamydospores, inoculations were done in plants or sowed seeds. The use of chlamydospores in sowed seeds was effective for the inoculation of Fusarium oxysporum f. sp. niveum in watermelon and showed the highest severity scores in relation to the others methods. The inoculation method using chlamydospores also obtained the shortest means of root and shoot length in the cultivars Charleston Gray and Sugar Baby. Thus, using this methodology, 25 accessions from the watermelon germplasm were evaluated 21 days after inoculation with a grading scale. Eight accessions were classified as resistant, corresponding to 32% of accessions evaluated. Eight other accessions received the highest score of severity, proving the efficiency of the methology to evaluate the reaction to the disease.
dc.identifierScientia Horticulturae, v. 228, p. 181-186, 2018.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1146424
dc.identifier.urihttp://hdl.handle.net/123456789/503261
dc.languageeng
dc.rightsopenAccess
dc.subjectMétodo de inoculação
dc.subjectVirulência
dc.subjectClamidósporos
dc.subjectMelancia
dc.subjectDoença
dc.subjectFusarium Oxysporum
dc.subjectCitrullus Lanatus
dc.subjectVírus
dc.subjectResistência Genética
dc.subjectWatermelons
dc.subjectFusarium oxysporum f. sp. niveum
dc.subjectInoculation methods
dc.subjectVirulence
dc.subjectGenetic resistance
dc.subjectChlamydospores
dc.titleResistance to Fusarium Wilt in watermelon accessions inoculated by chlamydospores.
dc.typeArtigo de periódico

Archivos

Colecciones

Embrapa Semi-Árido (CPATSA)