Desempenho da tangerineira 'Span Americana' em diferentes porta-enxertos

Abstract

Este trabalho objetivou avaliar o crescimento vegetativo, a produção e a qualidade de frutos da tangerina 'Span Americana' em diferentes porta-enxertos, nas condições edafoclimáticas de Bebedouro-SP. O plantio foi realizado em junho de 2003, em espaçamento de 6,0 m x 3,0 m, sendo utilizada irrigação por gotejamento a partir de 2006. Os porta-enxertos avaliados foram: citranges [Citrus sinensis (L.) Osbeck × Poncirus trifoliata L. Raf] 'Carrizo' e 'Troyer', tetraploides; trifoliatas (P. trifoliata) 'Davis A' e 'Flying Dragon'; limão Volkameriano Catania 2 (C. volkameriana Tenn. et Pasq.), HRS 849 [(C. aurantium L. cv. 'Smooth Flat Seville' x P. trifoliata cv. 'Argentina')], tangelo 'Orlando' (C. reticulata Blanco × C. paradisi Macf.) e limão 'Cravo' (C. limonia Osbeck). Foram avaliadas a produção acumulada, a eficiência produtiva e a precocidade de entrada em produção, no período de 2007 a 2009. Avaliaram-se, também, as dimensões das plantas e a taxa média de crescimento das plantas no período de 2005 a 2008, além da qualidade dos frutos em 2006 e 2007. Em pomares irrigados de tangerineira 'Span Americana', os porta-enxertos trifoliata 'Davis A' e HRS 849 apresentam desempenho horticultural satisfatório. Para plantio em alta densidade, a melhor performance da tangerineira 'Span Americana' é obtida com a utilização dos porta-enxertos trifoliata 'Flying Dragon' e citranges 'Troyer' e 'Carrizo'.

Horticultural performance of Lee tangelo grafted onto six rootstocks in South Brazil

“…For Span Americana tangerine, although an effect of The reduction in vegetative growth of Ponkan tangerine and Folha Murcha orange plants grafted onto Volkamer has also been seen when compared to rootstocks such as Rugoso lemon and Cleopatra tangerine in northwest Paraná state, Brazil (Stenzel et al, 2003(Stenzel et al, , 2005). However, in most studies trees on Flying Dragon had smaller canopies compared to those on Volkamer (Espinoza-Nuñez et al, 2011;Gonzatto et al, 2011;Mademba-Sy et al, 2012;Silva et al, 2013), differently from what we observed (Table 1).…”

“…The reduced vegetative growth of Lee grafted onto Flying Dragon is consistent with known characteristics as a dwarfing rootstock (Castle, 1978;Cheng & Roose, 1995). This dwarfing effect of Flying Dragon was also observed in many varieties of tangerines, oranges, lemons, and Tahiti lime, in several environmental conditions (Cantuarias-Avilés et al, 2010Gonzatto et al, 2011;Mademba-Sy et al, 2012;Silva et al, 2013).…”

“…The values found were always below 0.5, which indicates regular yields (Bassal, 2009). Similarly, other studies with tangerines and hybrids found no effect of rootstocks on ABI (Georgiou, 2000;Smith et al, 2004;Mourão Filho et al, 2007;Espinoza-Nuñez et al, 2007;Stuchi et al, 2008;Silva et al, 2013). This further demonstrates that other aspects (such as genetic characteristics of the canopy and management) may have greater impact on the production regularity by affecting the flowering intensity, which is greatly associated with fruit set (Gravina, 2007).…”

“…The smallest C R were seen for trees on in Flying Dragon, Rangpur, and Volkamer. rootstock was found, Flying Dragon promoted similar yield efficiency as Troyer and Carrizo tetraploids (Silva et al, 2013). It has been proposed that the higher yield efficiency of this rootstock is due to a lower translocation of sugars to the roots (Martínez-Alcántara et al, 2013).…”

Performance of ‘Cadenera’ orange trees grafted on five rootstocks

“…This value was significantly higher than those for plants grown on 'Swingle' citrumelo and 'Cleopatra' and 'Sunki' mandarin rootstocks (Table 6). Stuchi et al (2002) and Silva et al (2013) found no significant differences in the technical indices of the fruits from 'Valência' orange and 'Span Americana' (C. reticulata Blanco) mandarin trees grown on different rootstocks, whereas Stenzel et al (2005b) found that the technical index was higher for the fruits from 'Folha Murcha' orange plants grafted on the 'Sunki' mandarin rootstock. These results highlight the importance of the evaluation of the scion-rootstock combinations for local conditions because of the combined effect of genotype interactions and adaptation to edaphoclimatic conditions.…”