Performance of field-selected clones of Pera sweet orange in Northern São Paulo state, Brazil

Simone Rodrigues Silva,Gerd Walter Müller  Luiz Carlos Donadio,Luiz Gustavo Parolin,Eduardo Sanches Stuchi,Eduardo Augusto Girardi

doi:10.4322/crt.21920

Abstract

Performance of field-selected clones of Pera sweet orange in Northern São Paulo state, Brazil

Highlights

Brazil is the largest sweet orange producer in the world and supplied 23.6% of global fruit production and 50% of all the processed orange juice volume in 2016 (FAOSTAT, 2018)
Pera is the main sweet orange cultivar grown in Brazil with around 67 million trees that represent 34% of all area planted with sweet oranges planted in São Paulo and Minas Gerais states (FUNDECITRUS, 2020)
Thirteen clones propagated from elite Pera sweet orange trees [Citrus sinensis (L.) Osbeck] selected in the field in the Bebedouro region, previously micro-grafted and preimmunized with the PIAC Citrus tristeza virus (CTV) isolate at the former Phytopathological Virology Section at the Instituto Agronômico (IAC), in Campinas-SP (Müller et al, 2002), were compared with the Pera IAC and Pera Olímpia standards, all of them grafted on Rangpur lime (C. limonia Osbeck)

Summary

Introduction

Brazil is the largest sweet orange producer in the world and supplied 23.6% of global fruit production and 50% of all the processed orange juice volume in 2016 (FAOSTAT, 2018). Pera is a highly productive cultivar, with medium-sized trees with roughly upright branches able to hold ripe fruit on the tree for a several months. Fruits have mid-season maturation (Pio et al, 2005; Donadio, 1999). This is the most susceptible commercial sweet orange cultivar to the Citrus tristeza virus (CTV), which stem pitting symptoms was detected for the first time in trees of this cultivar independently of the rootstock (Moreira, 1959)

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Results

Conclusion