Postharvest preservation of the new hybrid seedless grape, ?BRS Isis?, grown under the double-croppinga year system in a subtropical area.

• Autor(a) principal: AHMED, S.
• Data de Publicação: 2019
• Outros Autores: ROBERTO, S. R., YOUSSEF, K., COLOMBO, R. C., SHAHAB, M., CHAVES JÚNIOR, O. J., SUMIDA, C. H., SOUZA, R. T. de
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112945
• topic: SO2 pads; B cinerea mold; Grape quality; BRS Isis; Subtropical Area; New hybrid seedless Grape; Vitis Vinifera; Botrytis Cinerea; Mildews

?BRS Isis? is a new hybrid seedless table grape tolerant to downy mildew with a goodadaptation to the tropical and subtropical climates. Gray mold, caused byBotrytis cinereaPers. ex Fr.is known as the most important postharvest mold in table grapes, causing extensive losses worldwide.As the postharvest behavior of ?BRS Isis? is still unknown, the objective of this work was to evaluatethe postharvest preservation andB. cinereamold control of this new grape cultivar, grown under thedouble-cropping a year system. Grape bunches were purchased from a field of ?BRS Isis? seedlesstable grapes trained on overhead trellises located at Marialva, state of Parana (South Brazil). Grapeswere subjected to the following treatments in a cold room at 1±1◦C: (i) Control; (ii) SO2-generatingpad; (iii) control with bunches inoculated with the pathogen suspension; (iv) SO2-generating pad withbunches inoculated with the pathogen suspension. The completely randomized experimental designwas used with four treatments, each including five replicates. The incidence of gray mold and otherphysicochemical variables, including bunch mass loss, shattered berries, skin color index, solublesolids (SS), titratable acidity (TA), and SS/TA ratio of grapes, were evaluated at 50 days after thebeginning of cold storage and at seven days at room temperature (22±2◦C). The ?BRS Isis? seedlessgrape, packaged with SO2-generating pads and plastic liners, has a high potential to be preservedfor long periods under cold storage, at least for 50 days, keeping very low natural incidence of graymold, mass loss, and shattered berries. Keywords:Vitis vinifera(L.); SO2pads;B. cinereamold; grape quality