Abstract
Rootstocks influence the performance and characteristics of fruit trees. However, there is still insufficient information on the relation of rootstocks in mainly cultivars of peach trees grown in Brazil. Therefore, this study aims at evaluating the performance of eight rootstocks: Aldrighi, Capdeboscq, Flordaguard, Nemaguard, Okinawa, Umezeiro, Tsukuba and Seleção Viamão grafted by ‘Chimarrita’ peach tree, planted in 2006 and evaluated in the 2013/2014, 2014/2015 and 2015/2016 in Capão do Leão, RS, Brazil. The following dependent variables were evaluated on the field: floral phenology, affinity with rootstocks, trunk diameter, crown volume, number of fruits, fruit mass and productivity. Fruit mass, diameter, color, pulp firmness, total soluble solid content, titratable acidity, total phenolic content, total carotenoid content, L-ascorbic acid content and antioxidant activity were evaluated. The Umezeiro rootstock provided the lowest values for crown volume, trunk diameter, number of fruits and productivity. The blossoming period of peach trees can be early or delayed depending on rootstock and harvest seasons. Field compatibility constant of Chimarrita cultivar was higher with the rootstocks of Capdeboscq, Okinawa, Tsukuba and Aldrighi. Fruits of plants grafted on Capdeboscq and Okinawa rootstocks showed reddish epidermis. The Okinawa rootstock enabled ‘Chimarrita’ peaches to have higher soluble solid concentrations and L-ascorbic acid. The highest concentrations of total carotenoids were verified in the pulp of fruits obtained from the ‘Chimarrita’ cultivar grafted on Aldrighi, Okinawa, Tsukuba and Umezeiro. The antioxidant activity of the peach pulp was higher on the Capdeboscq rootstock. Key words: Prunus persica (L.) Batsch, vegetate-productive behavior, phytochemical.
Highlights
IntroductionIn Brazil, most peach orchards use seed-bearing rootstocks, traditionally from the canning industry
Fruits of plants grafted on Capdeboscq and Okinawa rootstocks showed reddish epidermis
The antioxidant activity of the peach pulp was higher on the Capdeboscq rootstock
Summary
In Brazil, most peach orchards use seed-bearing rootstocks, traditionally from the canning industry These materials are genetically variable, leading to a lack of uniformity in the plants and hindering orchard management (Barreto et al, 2017). Both Aldrighi and Capdeboscq are the most commonly used rootstocks in the south of Brazil since it is easy to get their stones from industries to grow seedlings (Rocha et al, 2007). Other rootstocks such as Flordaguard, Nemaguard, Okinawa, Umezeiro, Tsukuba and Seleção Viamão have been used as alternatives in terms of fruit adaptation, productivity and quality (Comiotto et al, 2012, 2013; Galarça et al, 2013)
Sign-in/Register to view highlights & summary 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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
