New coffee (Coffea arabica L.) genotypes derived from Coffea canephora exhibiting high levels of resistance to leaf rust and Ceratocystis canker

dc.contributor.authorCastro Caicedo, Bertha Lucía
dc.contributor.authorCortina Guerrero, Hernando A.
dc.contributor.authorRoux, Jolanda
dc.contributor.authorWingfield, Michael J.
dc.date.accessioned2014-04-01T08:13:45Z
dc.date.available2014-04-01T08:13:45Z
dc.date.issued2013
dc.description.abstractThe purpose of this study was to evaluate the resistance to coffee leaf rust (CLR), caused by Hemileia vastatrix and to Ceratocystis canker (Cc) in coffee genotypes derived from crosses of Coffea arabica var. Caturra with accessions of C. canephora backcrossed to Caturra. Twenty-three (F3BC1) progenies including C. arabica var. Caturra and var. Colombia as controls were established in a field experiment. CLR evaluations were made during five years of natural infection, using an incidence rating scale. For Cc, artificial stem inoculations were made with an isolate of Ceratocystis colombiana and the results were assessed after one year. The selection process also included agronomic aspects such as plant height, canopy diameter, number of branch pairs, yield and grain characteristics. Twenty progenies showed >70% of rust resistance. Twelve progenies exhibited >80% of Cc resistance, while no resistance was observed in the controls. Only three progenies performed well for all criteria, including resistance to both pathogens and agronomic characteristics.en_US
dc.description.librarianhb2014en_US
dc.description.urihttp://www.sbfito.com.br/tppen_US
dc.identifier.citationCastro Caicedo, B, Cortina Guerrero, HA, Roux, J & Wingfield, MJ 2013, 'New coffee (Coffea arabica L.) genotypes derived from Coffea canephora exhibiting high levels of resistance to leaf rust and Ceratocystis canker', Tropical Plant Pathology, vol. 38, no. 6, pp. 485-494.en_US
dc.identifier.issn1982-5676 (print)
dc.identifier.issn1983-2052 (online)
dc.identifier.urihttp://hdl.handle.net/2263/37249
dc.language.isoenen_US
dc.publisherSociedade Brasileira de Fitopatologiaen_US
dc.rights© The Brazilian Phytopathological Society. This work is licensed under a Creative Commons Attribution 3.0 License.en_US
dc.subjectCeratocystis colombianaen_US
dc.subjectCeratocystis fimbriataen_US
dc.subjectGenetic resourcesen_US
dc.subjectHemileia vastatrixen_US
dc.subjectRobusta coffeeen_US
dc.subjectInterspecific hybridsen_US
dc.titleNew coffee (Coffea arabica L.) genotypes derived from Coffea canephora exhibiting high levels of resistance to leaf rust and Ceratocystis cankeren_US
dc.typeArticleen_US

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