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The coffee rust situation in Latin America in 1980. :

by Wellman, F.L; Echandi, E.
Publisher: Set 1981Subject(s): COFFEA ARABICA | VARIEDADES | HEMILEIA VASTATRIX | ROYA | ENFERMEDADES FUNGOSAS | RESISTENCIA A LA ENFERMEDAD | POLIPLOIDIA | HIBRIDACION | AMERICA LATINA In: Phytopathology (EUA) v. 71(9) p. 968-971Summary: After reviewing the effects on techniques of cultivation and the attitudes of growers of the first appearance of Hemileia vastatrix in Brazil in 1970 and its rapid spread throughout S. America, the authors describe progress and current work on breeding for resistance in S. American countries. Introduced resistant varieties, though lower yielding in the absence of rust than those traditionally grown in S. America, outyield them all when rust is present. Though ploidy differences make interspecific hybridization difficult, the best currently available sources of rust resistance combined with acceptable yields are Hibrido de Timor (Timor Hybrid), a Coffea arabica x C. canephora hybrid, and Kawasari, from C. arabica x C. liberica. Lines S288-23 and S333, derived from backcrosses of the latter hybrid to C. arabica varieties, are already in use commercially
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After reviewing the effects on techniques of cultivation and the attitudes of growers of the first appearance of Hemileia vastatrix in Brazil in 1970 and its rapid spread throughout S. America, the authors describe progress and current work on breeding for resistance in S. American countries. Introduced resistant varieties, though lower yielding in the absence of rust than those traditionally grown in S. America, outyield them all when rust is present. Though ploidy differences make interspecific hybridization difficult, the best currently available sources of rust resistance combined with acceptable yields are Hibrido de Timor (Timor Hybrid), a Coffea arabica x C. canephora hybrid, and Kawasari, from C. arabica x C. liberica. Lines S288-23 and S333, derived from backcrosses of the latter hybrid to C. arabica varieties, are already in use commercially

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