Phenology, bunch morphology and must quality of five grapevine hybrids grafted onto two rootstocks

Author(s)

Juliana Rocha Souza ^[1] ; Lenon Romano Modesto ^[2] ; Pedro Henrique Gatto Juliano ^[3] ; José Luiz Hernandes ^[4] ; Armando Reis Tavares ^[5] ; Marco Antônio Tecchio ^[6] ; Mara Fernandes Moura

Affiliation

^[1] Instituto Agronômico. Programa de Pós-Graduação em Agricultura Tropical e Subtropical - Brasil

^[2] Universidade Federal de Santa Catarina. Núcleo de Estudos da Uva e do Vinho - Brasil

^[3] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Ciências Agronômicas. Departamento de Ciência do Solo - Portugal

^[4] Instituto Agronômico. Centro de Frutas - Brasil

^[5] Instituto de Botânica. Núcleo de Plantas Ornamentais - Brasil

^[6] Universidade Estadual Paulista “Júlio de Mesquita Filho”. Faculdade de Ciências Agronômicas. Departamento de Horticultura - Brasil

• Document type: Journal article
• Source: Bragantia; v. 80, 2021-11-12.

Abstract

ABSTRACT Phenology, bunch morphology, and must quality are essential factors to the selection of grapevine cultivars for winemaking. This study aimed to evaluate five grapevine hybrids grafted onto two rootstocks, looking for fruit with the best characteristics for producing wine. The hybrids studied were ‘BRS Lorena’, ‘IAC 21-14 Madalena’, ‘Moscatel de Jundiaí’, ‘Moscato Embrapa’ and ‘SR 0.501-17’ grafted onto ‘IAC 572 Jales’ and ‘IAC 766 Campinas’ rootstock. Phenology was evaluated weekly, and the number of days from pruning to sprouting, flowering, and maturation was calculated. Fruit production, bunch morphology, and must quality were evaluated for each genotype and rootstock. ‘SR 0.501-17’ was classified as a genotype with a medium cycle, with fruit maturing 20 days earlier than the other hybrids, which were, therefore, classified as late-cycling. No interaction was noted between hybrids and rootstocks relative to bunch morphology. The must of ‘Moscato Embrapa’ grafted onto ‘IAC 766 Campinas’ rootstock had higher maturation index than that grafted onto ‘IAC 572 Jales’ rootstock. ‘BRS Lorena’ and ‘SR 0.501-17’ produced smaller berries, must with medium acidity, and higher soluble solid contents, as compared with other hybrids, resulting in the best bunch morphology and must quality for winemaking. (AU)

• FAPESP's process: 12/00292-9 - Evaluation of the grape selections JD 874 and Sr 0501-17 grafted on different rootstocks in east and Northwest of São Paulo State
• Grantee: Mara Fernandes Moura Furlan
• Support Opportunities: Regular Research Grants