Crop Breeding and Applied Biotechnology
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Item IPR Alvorada – Dwarf Arabica coffee cultivar with high yield(Crop Breeding and Applied Biotechnology, 2024-09-25) Sera, Gustavo Hiroshi; Sera, Tumoru; Mariucci Junior, Valdir; Harumi, LucianaIPR Alvorada is a Coffea arabica cultivar with C. canephora introgression, developed from a cross between IAPAR 59 and Mundo Novo IAC 376-4. This cultivar has a dwarf-medium size, high yield, good cup quality, strong vegetative vigor, a medium fruit ripening cycle, and slight resistance to coffee leaf rust.Item IPR 106: new Arabica coffee cultivar, resistant to some Meloidogyne paranaensis and M. incognita nematode populations of Paraná(Crop Breeding and Applied Biotechnology, 2020) Sera, Gustavo Hiroshi; Machado, Andressa Cristina Zamboni; Ito, Dhalton Shiguer; Shigueoka, Luciana Harumi; Silva, Santino Aleandro da; Sera, TumoruCultivar IPR 106 resulted from a spontaneous hybridization between “Icatu IAC 925” and an unknow dwarf plant. It is a dwarf cultivar with high rusticity, late ripening cycle, large grains, excellent cup quality and resistance to some populations of the nematodes Meloidogyne paranaensis and M. incognita found in the state of Paraná.Item Genetic determination of characteristics related to semi-mechanized coffee harvests(Crop Breeding and Applied Biotechnology, 2020) Dias, Rodrigo Elias Batista Almeida; Dias, Rafael Antônio Almeida; Botelho, César Elias; Abrahão, Juliana Costa de Rezende; Rezende, Tiago Teruel; Carvalho, Gladyston RodriguesBrazilian coffee cultivation was boosted over the last few decades by the mechanization of various field operations. Considering the influence of genetic factors on coffee harvesting efficiency, we aimed to evaluate the use of mechanized harvesting characteristics as a criterion to select progenies derived from ‘Icatu’ germplasm, previously evaluated for agronomic characteristics, resistance to rust and cercosporiosis. We also investigated genotypic and phenotypic correlations between semi-mechanized harvesting characteristics. Ten progenies of Coffea arabica L. were analyzed in two experimental farms during two consecutive harvests. Genetic parameters were evaluated to trace selection strategies. Four progenies that were suitable for mechanization were selected, supporting our hypothesis of the use of harvest characteristics as selection criteria.