Potential of rust-resistant arabica coffee cultivars for specialty coffee production

Rust is the main disease affecting Coffea arabica, most economically important coffee species. The objective of this study was to analyze C. arabica cultivars with different levels rust resistance, including bean size, raw appearance, final sensory scores (FSS), and aroma taste nuances cup. experiment designed in randomized blocks (RBD) three replications 20 treatments (cultivars), totaling 60 experimental plots. rust-susceptible IPR 100, Rubi MG 1192, Topázio 1190 were compared 17 rust-resistant cultivars. Cultivars 103, MGS Aranãs, Saíra II presented highest percentages high sieves, low mocha-type beans. All had FSS above 82 classified as specialty coffees. (Arara Catiguá MG2) showed a greater diversity cup flavor nuances. Rust-resistant Arabica are promising for physical quality beans have potential market.