Desempenho agronômico de cultivares de café arábica em cultivo irrigado no Norte de Minas Gerais

Abstract

The objective of the present work was to evaluate the growth, productivity and quality of coffee produced by Coffea arabica L. cultivars in an irrigated crop system in the north of Minas Gerais. The experiment was conducted in the irrigated perimeter of Jaíba, MG. The treatments consisted of 13 cultivars of Coffea arabica L (Acaiá IAC 474-19, Bourbon Amarelo IAC J10, Mundo Novo 376-4, Mundo Novo 379-19, Catucaí Amarelo - 2SL, Catucaí Amarelo - Mult F5, Topázio MG 1190, Catiguá MG2, Catuaí Amarelo - IAC 62, Catuaí Vermelho - IAC 144, Catuaí Vermelho IAC 99, Acauã and Sabiá), implanted in August 2013 at a spacing of 3,5 x 0,7m in a conventional irrigation system. The experimental design was in randomized blocks, with 4 replicates. The plots consisted of 1 row with 10 plants, and the 8 central plants were used for the evaluations. The evaluated characteristics were: the height of plants, stem diameter, cup diameter, length of plagiotropic branches, number of nodes of plagiotropic branches, productivity of coffee and its classification in relation to the grain sieve. The plant growth assessments were performed at approximately 90 day intervals between July 2016 and January 2017. The results showed higher vegetative growth for 'Mundo Novo' cultivars, higher productivity of cultivars 'Catiguá MG2', 'Sabiá', 'Topázio MG 1190', 'Catuaí Vermelho - IAC 144' and 'Catuaí Vermelho IAC 99' and higher proportion of mocha grains for 'Sabiá', 'Topázio MG 1190', 'Catuaí Vermelho - IAC 144' and 'Mundo Novo 376- 4' cultivars.