Advances in citrus propagation in Brazil

Carvalho, Sérgio Alves de; Girardi, Eduardo Augusto; Filho, Francisco de Assis Alves Mourão; Ferrarezi, Rhuanito Soranz; Coletta-Filho, Helvécio Della

doi:10.1590/0100-29452019422

Cited by 36 publications

(36 citation statements)

References 117 publications

(77 reference statements)

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“…CSD occurs in the north of Sao Paulo and in the west of Minas Gerais states (Bassanezi et al, 2003), important tropical citrus regions . As a result, diversification with CSD-tolerant rootstocks has increased since the 2000s (Carvalho, Girardi, Mourão Filho, Ferrarezi, & Coletta Filho, 2019), mainly with Swingle citrumelo [C. × paradisi Macfad. × Poncirus trifoliata (L.) Raf.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Rootstocks for Valencia Sweet Orange in Rainfed Cultivation Under Tropical Savannah Climate

Costa¹,

Stuchi²,

Girardi³

et al. 2020

JAS

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The performance of Valencia sweet orange grafted onto 41 hybrid citrus rootstocks was evaluated for 11 years in rainfed cultivation under tropical savannah climate (Aw type) in Brazil, in addition to three selections of the standard drought-tolerant Rangpur lime and two selections of Sunki mandarin. Drought tolerance, assessed by visual score of leaf wilting, was directly related to the mean fruit yield. Indio and Riverside citrandarins, Tropical Sunki mandarin and the hybrid TSKC × CTSW-028 were grouped with the most productive selections of Rangpur lime, all of them inducing large tree size, intermediate fruit production efficiency, and high drought tolerance. The hybrid TSK × TR English-CO was similar except by inducing a higher mean soluble solids concentration in the orange juice. A third group of rootstocks induced high yield and drought tolerance, and a mean 30% reduction in tree size that led to high production efficiency, which comprised the hybrids HTR-053, TSKC × (LCR × TR)-017 and-059, TSKC × CTSW-041, LCR × TR-001 and San Diego citrandarin. The tree mortality on Rangpur lime selections was as least as 46%, while more than 80% of trees grafted onto the aforementioned rootstocks survived without visual symptoms of citrus sudden death disease or graft incompatibility. The selected hybrids and Tropical Sunki mandarin also induced fruit quality, mainly soluble solids, superior to the Rangpur lime and, therefore, are potential rootstocks for rainfed cultivation of Valencia sweet orange.

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Section: Introductionmentioning

confidence: 99%

Hybrid Rootstocks for Valencia Sweet Orange in Rainfed Cultivation Under Tropical Savannah Climate

Costa¹,

Stuchi²,

Girardi³

et al. 2020

JAS

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“…On the other hand, 'Swingle' citrumelo (SC) induced the highest canopy volume, exceeding volume of 'Rangpur' lime (RL). 'SC', 'RL', and 'FD' comprised about 50, 33 and 4% of total citrus nursery trees produced in São Paulo State in 2018, and are the most important commercial varieties in Brazil including the standard-sized 'Sunki' mandarin (ST) representing 10% of nursery trees (Carvalho et al 2019).…”

Section: Discussionmentioning

confidence: 99%

Huanglongbing incidence, canopy volume, and sprouting dynamics of ‘Valencia’ sweet orange grafted onto 16 rootstocks

Rodrigues

Moreira

Stuchi

et al. 2020

Trop. plant pathol.

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Huanglongbing (HLB), the most important citrus disease worldwide, is associated with bacteria transmitted by the Asian citrus psyllid (ACP) preferably through new shoots present in the canopy. In a commercial citrus plant, the vegetative growth of the scion is influenced by the rootstock variety in which it is grafted. Although all commercial citrus varieties planted in recent years are susceptible to HLB, the dynamics of the rootstock in grafted plant could influence the progress of HLB, whether at the plant or grove scale. In this work, HLB incidence in 'Valencia' sweet orange grafted onto 16 rootstocks and its relationship to the tree canopy volume and flushing dynamics were evaluated in a field trial under ACP control. The experiment was conducted under rainfed conditions in Bebedouro, state of São Paulo, Brazil, from 2011 to 2019. 'Flying Dragon' trifoliate orange known for its dwarfing characteristics was used as the rootstock. A reduction in canopy volume by 77% at 8 years of age were observed compared to the most vigorous rootstocks. The frequency of flush shoots of 'Valencia' sweet orange was not influenced by the rootstock, but the abundance of flush shoots was lower on three semi-dwarfing rootstocks and as well as 'Flying Dragon'. Although HLB incidence on 'Flying Dragon' was lower than on 'Rangpur' lime and other three semi-standard rootstocks (trees with canopy volume between 51 and 75% of the 'Rangpur' lime canopy volume), all other combinations had similar HLB disease progress regardless of the canopy volume and flushing dynamics. Moreover, under field conditions, variations on the cumulative HLB incidence greater than 26% were necessary to significantly separate rootstocks. Therefore, the results suggest that true dwarfing rootstocks have potential to integrate the management program for HLB and that mechanisms in addition to tree vigor appear to be involved in the host-vector relationship.

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“…To eliminate the potential damage caused by the droplets, nebulizer sprays should produce small droplets, but with sufficient flow to cross the leaf canopy and reach the substrate (Testezlaf and Ferrarezi 2017). New, innovative irrigation methods are needed to increase irrigation efficiency and eliminate the drawbacks of overhead irrigation (Carvalho et al 2019). Subirrigation is an irrigation method that applies water to the bottom of containers and allows fertilizer solution recirculation.…”

Section: Irrigation Of Rootstock Liners In Seedbedsmentioning

confidence: 99%

“…In addition to manual overhead irrigation, the most used system for the production of nursery trees in citrus pots is drip irrigation using drippers with multiple outlets connected to microtubes, which are characterized by simplicity of operation and maintenance (Fig. 1E) (Carvalho et al 2019). The system can have one emitter with one-or multioutlet small tubes to route the water from the emitter to the trees.…”

Section: Irrigation Of Transplanted Rootstock and Grafted Trees In Citrus Potsmentioning

confidence: 99%

Stock Plant and Tree Production: Irrigation and Fertilization

Ferrarezi

2019

EDIS

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Citrus tree production in nurseries can be divided into three stages: production of rootstock liners, transplant of rootstocks into larger containers, and bud grafting. The objectives of this new 6-page publication of the UF/IFAS Horticultural Sciences Department are to provide general information on irrigation and fertilization for production of citrus nursery trees in seedbeds, nurseries and budwood multiplication blocks. This article, written by Rhuanito Soranz Ferrarezi, is chapter 8b of the forthcoming Citrus Nursery Production Guide. https://edis.ifas.ufl.edu/hs1333

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Advances in citrus propagation in Brazil

Cited by 36 publications

References 117 publications

Hybrid Rootstocks for Valencia Sweet Orange in Rainfed Cultivation Under Tropical Savannah Climate

Hybrid Rootstocks for Valencia Sweet Orange in Rainfed Cultivation Under Tropical Savannah Climate

Huanglongbing incidence, canopy volume, and sprouting dynamics of ‘Valencia’ sweet orange grafted onto 16 rootstocks

Stock Plant and Tree Production: Irrigation and Fertilization

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