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2021
Costa, Danilo Pereira; Stuchi, Eduardo Sanches; Girardi, Eduardo Augusto; Moreira, Alécio Souza; Gesteira, Abelmon Da Silva; Filho, Mauricio Antonio Coelho; Ledo, Carlos Alberto Da Silva; Silva, André Luiz Vanucci Da; Leão, Helton Carlos De; Passos, Orlando Sampaio; Filho, Walter Dos Santos Soares
Less is more: A hard way to get potential dwarfing hybrid rootstocks for valencia sweet orange Journal Article
Em: Agriculture (Switzerland), vol. 11, iss. 4, pp. 354, 2021, ISSN: 20770472.
Resumo | Links | BibTeX | Tags: Citrus spp, Drought tolerance, Fruit quality, Fruit yield, Graft compatibility, Poncirus trifoliata, Tree size control
@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}
}
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.