Abstract
ABSTRACT In the State of Bahia, Brazil, the citrus industry is located on the north coast with the prevalence of the combination ‘Pera’ sweet orange on ‘Rangpur’ lime. Scion-rootstock diversification may contribute to the increase of yield and the extension of harvest season, as long as to decrease the risk associated to abiotic and biotic stresses. Therefore, the performance of ‘Tuxpan Valencia’ sweet orange grafted onto 14 rootstocks was evaluated in Rio Real – BA. Planting was performed in 2006 under rainfed cultivation on cohesive ultisol and tree spacing of 6.0 m x 4.0 m. Tree size, yield and fruit quality were evaluated in the period of 2010-2014, in addition to tree survival at nine years old and drought tolerance in the field based on leaf wilting. In the evaluated conditions, ‘Sunki Tropical’ and ‘Sunki Maravilha’ mandarins led to the highest scion canopy volume. The highest accumulated yield in five harvests was recorded on ‘Santa Cruz Rangpur’ lime, ‘Volkamer’ lemon, ‘Riverside’ and ‘Indio’ citrandarins, ‘Sunki Tropical’ mandarin and the hybrid TSKC x (LCR x TR) – 001. ‘Riverside’ and TSKFL x CTSW – 049 induced higher yield efficiency on the canopy. The rootstocks did not influence the tree survival nine years after planting except for lower survival of TSKFL x CTSW – 049. Drought tolerance was not affected either. Regarding to the fruit quality of ‘Tuxpan Valencia’, the rootstocks influenced the juice content, soluble solids and technological index with the citrandarins, ‘Santa Cruz Rangpur’ lime, ‘Volkamer’ lemon and ‘Sunki Tropical’ mandarin presenting higher performance in general.
Highlights
MATERIAL AND METHODSThe area designed to produce oranges in the state of Bahia corresponded to 62,300 hectares in 2014, producing 1,023 million tons, and Rio Real municipality is the largest state producer (IBGE, 2016)
The evaluated rootstocks constituted of three canopy size groups of ‘Tuxpan Valencia’ orange in 2014, with ‘Sunki Tropical’ and ‘Sunki Maravilha’ tangerines inducing greater volume, 13.7 and 13.5 m3, respectively, and the other groups having average between 10.0 and 3.8 m3 (Table 1)
Plants with smaller size and diameter were observed on hybrid CLEO x CTCZ – 226, TSKFL CTTR - 017 and TSKFL x CTSW - 049, especially in the last, as well as smaller diameter in ‘Riverside’ citrandarin
Summary
MATERIAL AND METHODSThe area designed to produce oranges in the state of Bahia corresponded to 62,300 hectares in 2014, producing 1,023 million tons, and Rio Real municipality is the largest state producer (IBGE, 2016). In the accumulated production of ‘Tuxpan Valencia’ in the period 2010-2014 (fifth to ninth year after planting), it was observed that ‘Santa Cruz Rangpur’ lime and ‘Volkamer’ lemon, ‘Sunki Tropical’ mandarin, ‘Indio’ and ‘Riverside’ citrandarins and the hybrid TSKC x (LCR x TR) 001 induced 142.3 to 102.0 kg plant-1, surpassing the others that resulted in less than 82 kg plant-1 (Table 2).
Sign-in/Register to view highlights & summary 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.
