Abstract
Abstract The objective of this work was to evaluate tree size, production, and fruit quality of ‘Valência’ sweet orange (Citrus sinensis) grafted on various trifoliate orange rootstocks, in order to select genotypes with a high performance. Twenty rootstock genotypes were evaluated, including trifoliate orange hybrids with mandarin (citrandarins) and with grapefruit (citrumelos), as well as ‘Rangpur’ lime. The experiment was implemented in the northwestern region of the state of Paraná, Brazil, in a 6.0×2.5 m spacing, in a sandy soil under subtropical and rainfed conditions. The statistical model used was the randomized complete block design with four replicates and four trees per plot. Tree size and fruit yield and quality were analyzed during three consecutive harvest seasons. Data were subjected to the analysis of variance, and means were grouped by the Scott-Knott test. Principal component analysis and agglomerative hierarchical clustering were also carried out. F.80-18, F.80-5, and F.80-3 citrumelos and IPEACS-239 citrandarin are adequate rootstock options for ‘Valência’ sweet orange, with dwarf trees and a high production efficiency. These rootstocks, except F.80-18, are also adequate options to obtain oranges with good industrial properties.
Highlights
Resumo – O objetivo deste trabalho foi avaliar o tamanho da planta, a produção e a qualidade dos frutos da laranjeira-doce 'Valência' (Citrus sinensis) enxertada sobre diversos porta-enxertos híbridos de trifoliateiro, para selecionar genótipos de alto desempenho
'Valência' sweet orange [Citrus sinensis (L.) Osbeck] is one of the most cultivated varieties worldwide, with the characteristics – high fruit production and quality – required by the juice industry and by the fresh fruit market (Saunt, 2000; Bastos et al, 2014). It is graft-compatible with various rootstocks, including 'Rangpur' lime (Citrus limonia Osbeck) and 'Swingle' citrumelo [Citrus paradisi MacFad. × Poncirus trifoliata (L.) Raf.], the most used in Brazil, as well as with some trifoliate orange hybrids, which are a new generation of rootstocks with potential for use in the citrus industry (Simonetti et al, 2015)
It is important that the rootstocks chosen for each scion provide a high production efficiency, as well as resistance to the main diseases and abiotic factors that affect citrus orchards (Castle et al, 2010; Domingues et al, 2018)
Summary
Resumo – O objetivo deste trabalho foi avaliar o tamanho da planta, a produção e a qualidade dos frutos da laranjeira-doce 'Valência' (Citrus sinensis) enxertada sobre diversos porta-enxertos híbridos de trifoliateiro, para selecionar genótipos de alto desempenho. 'Valência' sweet orange [Citrus sinensis (L.) Osbeck] is one of the most cultivated varieties worldwide, with the characteristics – high fruit production and quality – required by the juice industry and by the fresh fruit market (Saunt, 2000; Bastos et al, 2014). It is graft-compatible with various rootstocks, including 'Rangpur' lime (Citrus limonia Osbeck) and 'Swingle' citrumelo [Citrus paradisi MacFad. Among the promising genotypes of rootstocks, some hybrids of trifoliate orange stand out, such as citrumelos and citrandarins (Citrus reticulata Blanco × P. trifoliata) (Donadio et al, 2019; Domingues et al, 2021a)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
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.
