Performance of ‘Tuxpan Valencia’ Sweet Orange Grafted Onto 14 Rootstocks in Northern Bahia, Brazil

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

Performance of the pineapple sweet orange on different rootstocks

“…Likewise, Carvalho et al (2016a) carried out a 4-year study and found low cumulative yield of 'Piemonte' mandarin when they were grafted on rootstocks 'Orlando' tangelo, 'Swingle' citrumelo and HTR -051. On the other hand, 'Cravo Santa Cruz Rangpur' lime and 'Sunki Tropical' mandarin induced high cumulative production to 'Valencia Tuxpan' orange in a 5-year study (FRANÇA et al, 2016), whereas the 'Cravo Santa Cruz' lime also impart high production to the 'Piemonte' mandarin (CARVALHO et al, 2016a).…”

“…box -1 . França et al (2016) found an interval from 1.8 to 2.5 kg.SS.box -1 in the case of 'Valência Tuxpan' sweet orange grafted on 14 rootstocks in the north of Bahia, whereas Bacar et al (2014) found values that ranged from 1.83 to 1.96 kg.SS.crate -1 in 'Jafa' orange trees grafted on 5 rootstocks in Londrina, Paraná state.…”

“…It should be highlighted that rootstocks HTR-51, LVK x LCR-010 and 'Cravo Santa Cruz' lime had the highest survival rates (100%), whereas 'Riverside' citrandarin, TSKC X CTTR-02 (75%) and 'Swingle' citrumelo (62%) resulted in plant death of 13%, 25% and 38%, respectively (Table 2). França et al (2016) observed that the 'Valencia Tuxpan' orange grafted on 14 rootstocks exhibited an high survival rates (100%), after having grown for nine years. The best rootstocks were both 'Indio' and 'Riverside' citrandarin, 'Sunki Tropical' mandarin and 'Cravo Santa Cruz Rangpur' lime, whereas the hybrid TSKFL x CTSW -049 was the only rootstock that led to plant death.…”

“…Insertion of alternative citrus varieties in traditional ones has shown that the former have adapted well to several regions, a fact that has led to increase in productivity and fruit quality for both in natura fruit markets and industries (MARTINS et al, 2014;CAPUTO et al, 2012), besides mitigating negative impacts caused by abiotic and biotic stress in citrus groves (MACHADO; YALY; BATIANEL, 2011;SCAPIM;STENZEL, 2007;FRANÇA, et al, 2016). The recommendation of the combination scion/rootstock may be evaluated by characteristics such as growth, vigor, precocious production, volume of production, fruit development, fruit maturation, fruit quality, water deficit tolerance and disease/pest tolerance (SILVA et al, 2017).…”

Agronomic performance of the ‘Pera’ orange grafted onto nine rootstocks under the conditions of Rio Branco, Acre, Brazil

“…-survival percentage (%) calculated by the ratio of dead plants to those living up to 2017; -tolerance to field drought estimated during the critical period of drought occurring in September 2017, using a score scale based on visual symptoms of wilting leaves, ranging from grade 1 (no symptoms), grade 2 (slight wilting in up to half of the canopy), grade 3 (slight wilting throughout the canopy) up to grade 4 (intense wilting throughout the canopy and leaf drop), conducted by four evaluators (França et al, 2016).…”