Identification of race XXXIII of Hemileia vastatrix on Coffea arabica Catimor derivatives in Brazil

• DOI: 10.1007/s13314-012-0081-7
• Publication Date: 2012-10-26T14:10:03Z
• Authors: A. S. Capucho; E. M. Zambolim; R. L. Freitas; F. Haddad; E. T. Caixeta; L. Zambolim
• Keywords: 0106 biological sciences; 01 natural sciences

In this study, a survey of physiological races of H. vastatrix was carried out on 64 coffee leaf rust samples from genotypes of Coffea arabica, C. canephora and Hibrido de Timor/Icatu derivatives that are cultivated in Brazil’s main production areas. Based on the infection pattern in a series of differentiating coffee tree clones, the races I, II, III and XXXIII were characterised. The H. vastatrix race XXXIII, reported here for the first time, was associated under field conditions with infection of Catimor derivatives, which are generally considered resistant to coffee leaf rust.