A escolha da cultivar a ser implantada em uma lavoura cafeeira deve ser baseada na produtividade, qualidade e tamanho dos grãos, visando agregação de valor ao produto. Neste contexto, objetivou-se avaliar os parâmetros produtivos e de qualidade de cultivares de cafeeiros na região do Alto Paranaíba, Minas Gerais. O experimento foi realizado na Universidade Federal de Uberlândia, Campus Monte Carmelo, no delineamento em blocos casualizados (DBC), com cinco blocos e oito tratamentos representados por cultivares de Coffea arabica L. Em julho de 2019, foi realizada a colheita por meio de derriça manual no pano, sendo avaliadas as seguintes características: produtividade (sacas beneficiadas de 60 kg ha-1), percentual de frutos verde, verde cana, cereja, passa e seco, rendimento (L de “café da roça” para compor uma saca de 60 kg de café beneficiado), renda (relação entre o peso do café beneficiado e o de café seco em coco, em porcentagem), análise sensorial de acordo com o protocolo da Specialty Coffee Association of America (SCAA) e classificação quanto ao tamanho e formato de grãos. As cultivares Acaiá Cerrado MG-1474, Mundo Novo IAC 379-19, Catuaí Vermelho IAC 99 e Topázio MG-1190 se destacaram por apresentarem maiores produtividades e renda. Não houve diferença significativa entre as cultivares para rendimento, obtendo-se média de 380,6 L de “café da roça” para compor uma saca de 60 kg beneficiada. O maior percentual de frutos cerejas, passas e secos foram detectados, respectivamente, nas cultivares Mundo Novo IAC 379-19, Bourbon Amarelo IAC J10 e Acauã Novo (média de 7,78%), Mundo Novo IAC 379-19 e Bourbon Amarelo IAC J10 (média de 21,9%) e Acaiá Cerrado MG-1474, Catuaí Vermelho IAC 99, Topázio MG-1190, IAC 125 RN e Paraíso MG H 419-1 (média de 91,2%). Todas as cultivares apresentam pontuação de bebida entre 79 e 81 pontos. A cultivar IAC 125 RN obteve maior percentual de grãos de peneira alta, enquanto as cultivares Topázio MG-1190 e Acauã Novo apresentaram maior quantidade de grãos moca miúdo.

The use of management practices that reduce the application of phytosanitary products and guarantee sustainability to the production process has been increasingly used in coffee farming. The objective of this work was to evaluate the vegetative, productive and nutritional parameters of coffee plants as a function of management systems. The experiment was set in 2018 in Monte Carmelo, Minas Gerais. The experimental design was in randomized blocks with four treatments and five blocks. The treatments were composed of doses of organic compost applied in topdressing: (T1): 150 g plant-1 (1.7 t ha-1); (T2): 300 g plant-1 (3.4 t ha-1); T3: 500 g plant-1 (5.7 t ha-1); and T4 (control: standard management of the farm). The conventional management provided an increase in the number of internodes in the plagiotropic branch of the coffee tree and in the productivity of the first crop of the plantation. The management systems did not influence the format and size of the coffee beans. The use of organic fertilization and absence of phytosanitary products allowed the production of specialty coffees, besides accelerating the maturation process of the fruits. The management with organic fertilization was efficient in keeping the pH, organic matter, base saturation, effective CEC, phosphorus, sulfur, calcium, copper, iron, manganese and zinc levels in the soil at satisfactory levels. The foliar levels of phosphorus, potassium, sulfur, boron and copper were satisfactory for the crop and did not differ between the management systems adopted in the field.

The coffee growing in Minas Gerais has been outstanding due to the high quality in the production and the cultivar choice is very important during the culture implantation process. Genetic dissimilarity studies are very important to make further advances in breeding programs to obtain more adapted cultivars. Thus, the objective of this work was to evaluate the agronomic potential and genetic dissimilarity among coffee cultivars based on hierarchical and optimization methods. The experiment was installed at the Federal University of Uberlândia, Campus - Monte Carmelo. The planting was carried out in December 2015, using a randomized block design with four replications. A spacing of 3.5 m between rows and 0.6 m between plants was adopted. The treatments consisted of the Coffea arabica cultivars: Acaiá Cerrado - MG 1474; Mundo Novo IAC 379-19; Bourbon Amarelo IAC J10; Catuaí Vermelho IAC 99; Topázio MG 1190; Acauã Novo and IAC 125 RN. Growth, crop yield and physical classification were evaluated for type, size and shape of coffee beans. There was consistency between hierarchical and optimization methods in the groups formation. The cultivar Mundo Novo IAC 379-19 showed the highest vegetative vigor. The cultivar Acaiá Cerrado MG 1474 was the one that obtained the highest yield in the first crop. The cultivar Topázio MG 1190 showed higher genetic dissimilarity compared to the other cultivars. UPGMA multivariate analysis and Tocher optimization methods indicated that the cultivars have genetic variability for the region under study.