Publications

@article{Costa2021,

title = {Less is more: A hard way to get potential dwarfing hybrid rootstocks for valencia sweet orange},

author = {Danilo Pereira Costa and Eduardo Sanches Stuchi and Eduardo Augusto Girardi and Alécio Souza Moreira and Abelmon Da Silva Gesteira and Mauricio Antonio Coelho Filho and Carlos Alberto Da Silva Ledo and André Luiz Vanucci Da Silva and Helton Carlos De Leão and Orlando Sampaio Passos and Walter Dos Santos Soares Filho},

url = {https://www.mdpi.com/2077-0472/11/4/354/htm https://www.mdpi.com/2077-0472/11/4/354},

doi = {10.3390/AGRICULTURE11040354/S1},

issn = {20770472},

year  = {2021},

date = {2021-01-01},

journal = {Agriculture (Switzerland)},

volume = {11},

issue = {4},

pages = {354},

publisher = {MDPI AG},

abstract = {As in several fruit crops, citrus trees with decreased size allow for a higher planting density, which may lead to higher productivity and facilitate operations such as harvesting and spraying. The use of dwarfing rootstocks is one of the most feasible methods for tree size control, but few commercial varieties are available to date. In this work, the long-term performance of Valencia sweet orange grafted onto 51 hybrid citrus rootstocks was evaluated in rainfed cultivation at 6.0 m × 2.5 m tree spacing in Northern São Paulo State, Brazil. About a third of the evaluated hybrids were classified as dwarfing and semi-dwarfing rootstocks, that is, respectively inducing a relative canopy volume of <40% and 40-60% compared with the standard rootstock, the Rangpur lime Santa Cruz selection. The production efficiency and soluble solids concentration were conversely related to the canopy volume. Three citrandarins of Sunki mandarin (TSKC) × Flying Dragon trifoliate orange (TRFD) were grouped within the most productive dwarfing rootstocks. Other hybrids that expressively decreased tree size were mainly sensitive to drought; therefore, the mean fruit yield was low, indicating the need for irrigation, albeit fruit quality was high. Estimated productivity on the selected TSKC × TRFD rootstocks would double to an average of 40 t·ha−1·year−1 if tree spacing was adjusted to the smaller tree size. Although the HTR-208 citrandarin and the LCR × CTSW-009 citrumelimonia were as vigorous as the Santa Cruz Rangpur lime, they induced an outstanding fruit yield due to their highest tolerance to drought and, hence, can be considered for rainfed cultivation at wider tree spacing.},

keywords = {Citrus spp, Drought tolerance, Fruit quality, Fruit yield, Graft compatibility, Poncirus trifoliata, Tree size control},

pubstate = {published},

tppubtype = {article}

}

@article{Sampaio2021,

title = {Sweet orange acclimatisation to water stress: a rootstock dependency},

author = {Antonio Hélder Rodrigues Sampaio and Roberval Oliveira Silva and Ralph Bruno França Brito and Walter Santos Soares Filho and Abelmon Silva Gesteira and Laércio Duarte Souza and Mauricio Antonio Coelho Filho},

doi = {10.1016/J.SCIENTA.2020.109727},

issn = {0304-4238},

year  = {2021},

date = {2021-01-01},

journal = {Scientia Horticulturae},

volume = {276},

pages = {109727},

publisher = {Elsevier},

abstract = {The diversification of rootstocks is of great importance for the survival of the citrus industry in order to reduce and mitigate risks caused by abiotic factors, primarily related to drought. The present study aimed to investigate the effects of ‘Pera’ sweet orange Citrus sinensis (L.) Osbeck interactions with eight rootstocks on soil water extraction, physiological responses and field productivity. Eight rootstocks combined with the ‘Pera’ sweet orange were evaluated in the field to study the effects on the following factors in response to soil water availability: matric potential (Ѱm) at depths of 0.25 m, 0.50 m and 0.90 m; physiological responses of the plants: leaf water potential (Ѱw), stomatic conductance (gs) and temperature (Lt); and plant productivity. Significant differences (p ≤ 0.05) were observed in the dry period for scion-rootstock interactions on the parameters Ѱm, Ѱw and gs. There were also significant differences for yield and productive efficiency (p ≤ 0.05). However, contrasting individuals concerning soil water extraction showed similar physiological responses in the driest periods. Different mechanisms of acclimatization to periods of drought stress that resulted in different soil water extractions and different physiological responses were not strongly related to plant productivity and were dependent on the characteristics of the deficit event. Water extraction from the shallow layer of soil is best correlated with plant water status Ѱw, it is not associated with the effective use of water in deeper soil layers for the scion-rootstock combinations studied, and explains the variation on productivities of genotypes. Scion-rootstock interactions that induce a smaller canopy volume and higher productive efficiency (kg fruit/volume canopy) and lower water use are more appropriated in high planting densities.},

keywords = {Citrus, Drought tolerance, plant and soil water potential, plant water relations},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Rootstock-related improved performance of ‘Pera’ sweet orange under rainfed conditions of Northeast Brazil},

author = {Hélio Wilson Lemos Carvalho and Adenir Vieira Teodoro and Inácio Barros and Luciana Marques Carvalho and Walter Santos Soares Filho and Eduardo Augusto Girardi and Orlando Sampaio Passos and Delia M. Pinto-Zevallos},

doi = {10.1016/J.SCIENTA.2019.109148},

issn = {0304-4238},

year  = {2020},

date = {2020-01-01},

journal = {Scientia Horticulturae},

volume = {263},

pages = {109148},

publisher = {Elsevier},

abstract = {Citrus orchards in the coastal tablelands of Northeast Brazil are almost exclusively composed of ‘Pera CNPMF D-6’ sweet orange, henceforth ‘Pera’, grafted on ‘Rangpur’ lime. Therefore, assessing new rootstocks for ‘Pera’ in this region is pivotal for diversification purposes, potentially leading to increased competitiveness, yield and fruit quality. In this study, vegetative growth, productive performance, pest attack and fruit quality of ‘Pera’, grafted on five rootstocks, were assessed over 10 years in Northeast Brazil. The trifoliate hybrid HTR-051 conferred the highest yield efficiency to ‘Pera’, while ‘Red Rough’ lemon and LVK x LCR - 010 induced precocity, with yields exceeding 9400 kg ha−1 in the first harvest, as well as the highest cumulative yields. ‘Red Rough’ lemon, LVK x LCR - 010 and HTR-051 were notable for imparting high weight and total soluble solids to ‘Pera’ fruit. Regarding pests, the highest densities of citrus rust mite Phyllocoptruta oleivora were found on the fruit of ‘Pera’ grafted on LVK x LCR - 010, despite low densities of this arthropod over the sampling period. Altogether, our results highlight ‘Red Rough’ lemon and LVK x LCR −010 as superior rootstocks for excelling in productive performance and fruit quality. In addition, HTR-051 manifests as an excellent option for high-density orchards because it induces dwarfism and high production efficiency.},

keywords = {Citrus spp., Drought tolerance, Fruit quality and production, Poncirus trifoliata, Vegetative growth},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Rootstock-related improved performance of ‘Pera’ sweet orange under rainfed conditions of Northeast Brazil},

author = {Hélio Wilson Lemos Carvalho and Adenir Vieira Teodoro and Inácio Barros and Luciana Marques Carvalho and Walter Santos Soares Filho and Eduardo Augusto Girardi and Orlando Sampaio Passos and Delia M. Pinto-Zevallos},

doi = {10.1016/J.SCIENTA.2019.109148},

issn = {0304-4238},

year  = {2020},

date = {2020-01-01},

journal = {Scientia Horticulturae},

volume = {263},

pages = {109148},

publisher = {Elsevier},

abstract = {Citrus orchards in the coastal tablelands of Northeast Brazil are almost exclusively composed of ‘Pera CNPMF D-6’ sweet orange, henceforth ‘Pera’, grafted on ‘Rangpur’ lime. Therefore, assessing new rootstocks for ‘Pera’ in this region is pivotal for diversification purposes, potentially leading to increased competitiveness, yield and fruit quality. In this study, vegetative growth, productive performance, pest attack and fruit quality of ‘Pera’, grafted on five rootstocks, were assessed over 10 years in Northeast Brazil. The trifoliate hybrid HTR-051 conferred the highest yield efficiency to ‘Pera’, while ‘Red Rough’ lemon and LVK x LCR - 010 induced precocity, with yields exceeding 9400 kg ha−1 in the first harvest, as well as the highest cumulative yields. ‘Red Rough’ lemon, LVK x LCR - 010 and HTR-051 were notable for imparting high weight and total soluble solids to ‘Pera’ fruit. Regarding pests, the highest densities of citrus rust mite Phyllocoptruta oleivora were found on the fruit of ‘Pera’ grafted on LVK x LCR - 010, despite low densities of this arthropod over the sampling period. Altogether, our results highlight ‘Red Rough’ lemon and LVK x LCR −010 as superior rootstocks for excelling in productive performance and fruit quality. In addition, HTR-051 manifests as an excellent option for high-density orchards because it induces dwarfism and high production efficiency.},

keywords = {Citrus spp., Drought tolerance, Fruit quality and production, Poncirus trifoliata, Vegetative growth},

pubstate = {published},

tppubtype = {article}

}

@article{Meneses2020,

title = {Rootstocks and planting types on root architecture and vegetative vigor of ‘Pera’ sweet orange trees},

author = {Thaís N. Meneses and Mauricio A. Coelho Filho and Hermes P. Santos Filho and Luana L. de A. Dos Santos and Abelmon S. Gesteira and Walter Dos S. Soares Filho},

url = {http://www.scielo.br/j/rbeaa/a/dFHKYJKmBXFkz7SSRBzcp5x/?lang=en},

doi = {10.1590/1807-1929/AGRIAMBI.V24N10P685-693},

issn = {1415-4366},

year  = {2020},

date = {2020-01-01},

journal = {Revista Brasileira de Engenharia Agrícola e Ambiental},

volume = {24},

issue = {10},

pages = {685-693},

publisher = {Departamento de Engenharia Agrícola - UFCG},

abstract = {ABSTRACT Root architecture affects plant growth and agricultural productions. Although it is related to genetic factors, soil physical limitations can affect the root system and volume of explored soil, compromising plant growth and fruit production. Considering the need to mitigate these restrictions, the objective of the present study was to evaluate two planting types (planting of protected seedlings and planting of seeds in definitive place) and two scion-rootstock combinations (‘Pera’ sweet orange, CNPMF D-6 selection, combined with ‘Santa Cruz Rangpur’ lime and ‘Sunki Tropical’ mandarin rootstocks). The experiment was conducted at the Lagoa do Coco Farm, Rio Real, BA, Brazil, in a Oxisol under rainfed conditions. Biometric, physiological, and soil water content evaluations were made during the experiment. Soil mechanical resistance to root penetration and root system characteristics were also evaluated. Roots were concentrated on the soil surface layers (0-0.40 m), extending horizontally up to 1.50 m from the plant, regardless of the management practices used. The total root length in each root diameter classes studied, root length density, and total root mean diameter were higher for planting of protected seedling, resulting in greater root development. Plants from ‘Pera’ sweet orange scion grafted on ‘Santa Cruz Rangpur’ lime rootstock had earlier production and were more vigorous. Soil structure affects root growth, and the root distribution up to 0.40 m depth is correlated with plant vigor, yield, and water status under rainfed conditions.},

keywords = {citriculture, cohesive soil, Drought tolerance, root},

pubstate = {published},

tppubtype = {article}

}

@article{Girardi2017,

title = {Sunki mandarin and Swingle citrumelo as rootstocks for rain-fed cultivation of late-season sweet orange selections in northern São Paulo state, Brazil},

author = {Eduardo Augusto Girardi and Thales Sandoval Cerqueira and Tatiana Eugenia Cantuarias-Avilés and Simone Rodrigues Silva and Eduardo Sanches Stuchi},

url = {http://www.scielo.br/j/brag/a/vdT3V6Pp7MQFSGgHNZyDZrH/?lang=en},

doi = {10.1590/1678-4499.2016.350},

issn = {0006-8705},

year  = {2017},

date = {2017-01-01},

journal = {Bragantia},

volume = {76},

issue = {4},

pages = {501-511},

publisher = {Instituto Agronômico de Campinas},

abstract = {ABSTRACT In Brazilian regions affected by the citrus sudden death disease, sweet orange cultivation depends on the use of resistant rootstocks. Rangpur lime was mainly replaced by Swingle citrumelo and Sunki mandarin rootstocks, more drought-sensitive ones. The diversification of scion selections is also desirable aiming at the increasing demand for not from concentrate orange juice (NFC) that requires high-quality fruits. In this work, we evaluated the performance of 6 selections of Valencia (IAC, Dom João, Late Burjasot IVIA 35-2, Rhode Red SRA 360, Temprana IVIA 25 and Campbell) and Natal IAC sweet oranges grafted onto Swingle citrumelo and Sunki mandarin. The planting occurred in 2001 under rain-fed cultivation in Bebedouro, northern São Paulo state, Brazil. The outline was made through randomized blocks in a 7 × 2 factorial design (selections × rootstock), with 4 replications and 2 trees in unit. Both rootstocks performed well in the region. Sunki mandarin rootstock induced greater tree size and production per plant to the scion selections, 38 and 21%, respectively, plus higher precocity of production compared to Swingle citrumelo. The later determined a greater productive efficiency, as well as a greater percentage of juice in general, albeit with lower concentrations of soluble solids and acidity. Natal IAC, Valencia IAC and Rhode Red Valencia selections presented a higher accumulated production, on average, 218.6 kg∙plant−1 (2004 – 2008), and a higher productive efficiency (kg fruit∙m−3 of canopy) due to their smaller tree size. All assessed selections produced fruits with high soluble solids content that were suitable for juice processing.},

keywords = {[C. paradisi × Poncirus trifoliata], [C. paradisi x poncirus trifoliata], Citrus sinensis. C. sunki, Drought tolerance, Fruit quality, production},

pubstate = {published},

tppubtype = {article}

}