Performance of ‘Cadenera’ orange trees grafted on five rootstocks
Abstract Citriculture is an important alternative for the agribusiness development in the state of Paraná, Brazil. However, the use of a few cultivars of scion and rootstock restricts the harvest period and increases the vulnerability to pests and diseases. This study aimed to evaluate the vegetativ...
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Veröffentlicht in: | Revista Brasileira de Fruticultura 2018-01, Vol.40 (4) |
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Zusammenfassung: | Abstract Citriculture is an important alternative for the agribusiness development in the state of Paraná, Brazil. However, the use of a few cultivars of scion and rootstock restricts the harvest period and increases the vulnerability to pests and diseases. This study aimed to evaluate the vegetative growth, production and fruit quality of ‘Cadenera’ orange trees (Citrus sinensis (L.) Osbeck ) grafted on five rootstocks, during nine harvests, under a subtropical environmental condition. The experimental design was randomized blocks with six replications, two plants per plot, and five rootstocks: ‘Rangpur’ lime (C. limonia Osb.), ‘Cleopatra’ (C. reshni hort. ex Tanaka ) and ‘Sunki’ mandarins (C. sunki hort. ex Tanaka (L.) Raf.), ‘Swingle’ citrumelo [C. paradisi Macfad. x Poncirus trifoliata (L.) Raf.], and ‘C-13’ citrange [C. sinensis (L.) Osbeck cv. Pera x P.s trifoliata (L.) Raf.]. Biometric variables, and fruit yield and quality were analyzed. The smallest canopy size was induced by ‘Rangpur’ lime and ‘C 13’ citrange rootstocks. ‘Swingle’ citrumelo and ‘C 13’ citrange provided the highest yields for the ‘Cadenera’ sweet orange trees and were superior to ‘Rangpur’ lime. Trees grafted on ‘C 13’ citrange presented the highest yield and productive efficiency.
Resumo A atividade cítricola é uma importante alternativa para o agronegócio no Estado do Paraná. Entretanto, o uso de poucas cultivares, tanto de copa quanto de porta-enxerto, restringe o período de colheita e aumenta a vulnerabilidade da cultura à ocorrência de pragas e doenças. O objetivo deste estudo foi avaliar o crescimento vegetativo, a produção e a qualidade de frutos da laranjeira ‘Cadenera’ sobre cinco porta-enxertos, durante nove safras, nas condições edafoclimáticas de Londrina-PR, Brasil. Foi adotado o delineamento experimental em blocos casualizados, com seis repetições, duas plantas úteis por parcela e, como tratamentos, cinco porta-enxertos: limoeiro ‘Cravo’ (C. limonia Osbeck), tangerineiras ‘Cleópatra’ (C. reshni hort. ex Tanaka ) e ‘Sunki’ (C. sunki hort. ex Tanaka), citrumeleiro ‘Swingle’ [ MC. paradisiacfad. x Poncirus trifoliata (L.) Raf.] e citrangeiro ‘C 13’ [C. sinensis (L.) Osbeck cv. Pera x P.trifoliata (L.) Raf.]. Foram analisadas variáveis biométricas, de produção e de qualidade dos frutos. O menor porte de copa foi induzido pelos porta-enxertos limoeiro ‘Cravo’ e citrangeiro ‘C 13’. O citrumeleiro ‘Swingle’ e o citrangeiro ‘C 13’ proporcionaram às plantas maiores valores de |
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ISSN: | 0100-2945 1806-9967 1806-9967 |
DOI: | 10.1590/0100-29452018764 |