Abstract
ABSTRACT This study evaluated the cycle duration, physicochemical characteristics of fruits and climatic adaptation of the ‘SR 501-17’ hybrid grape grafted on four rootstocks for the production of white wine. We tested four rootstocks, ‘IAC 766 Campinas’, ‘IAC 572 Jales’, ‘IAC 571-6 Jundiai’ and ‘IAC 313 Tropical’, planted in two climatic regions, Cfa and Aw, in the state of Sao Paulo, Brazil in the cultivation years 2014 and 2015. Cycle duration, production, cluster weight, number of berries per bunch, content of soluble solids, titratable acidity, a maturation index and the weight, length and width of berries were evaluated. A principal component analysis characterized the cultivar for both climatic regions and years. The rootstock did not influence the cycle, production or physicochemical characteristics of the ‘SR 501-17’ hybrid. The soluble-solid content in the must was higher and the production cycle in 2014 was longer for the Cfa climate. The production cycle was shorter and the weight and width of the berries were lower, mainly in 2015, for the Aw climate. The cycle was thus longer, production was higher and the chemical characteristics were better for the ‘SR 501-17’ hybrid under Cfa conditions, regardless of the rootstock.
Highlights
Grapes are an important fruit globally and can be used for making wine and oil or as table grapes and in other applications
The grape genus Vitis is highly variable, but V. vinifera is normally used for making wine in most countries because this species has better fruit for making high quality wines (Dolkar et al 2017; Miele and Rizzon 2017; Laucou et al 2018)
Most V. vinifera varieties are susceptible to many common grape diseases, partly because grapes mature during the rainy season, which is ideal for the development of diseases (Guan et al 2016; Santos et al 2018a)
Summary
Grapes are an important fruit globally and can be used for making wine and oil or as table grapes and in other applications. The grape genus Vitis is highly variable, but V. vinifera is normally used for making wine in most countries because this species has better fruit for making high quality wines (Dolkar et al 2017; Miele and Rizzon 2017; Laucou et al 2018). The grape cycle, though, is problematic in some wine regions due to high rainfall and the development of diseases such as powdery mildew, downy mildew and anthracnose, which reduce fruit quality and cause up to 100% crop loss (Amorim et al 2016; Santos et al 2018b). Some grape-breeding programs in Brazil have developed new cultivars with good climatic adaptation and characteristics for making wine
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call