Coffee Science - v.08, n.1, 2013
URI permanente para esta coleçãohttps://thoth.dti.ufv.br/handle/123456789/7821
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Item Comportamento de progênies F4 de cafeeiros arábica, antes e após a poda tipo esqueletamento(Editora UFLA, 2013-01) Carvalho, Gladyston Rodrigues; Botelho, César Elias; Rezende, Juliana Costa de; Ferreira, André Dominguett; Cunha, Rodrigo Luz da; Pedro, Francisco CarlosA utilização do adensamento em lavouras cafeeiras é um dos fatores de aumento da produtividade, entretanto, há a necessidade de selecionar genótipos mais adaptados a esse sistema de plantio. Objetivou-se, neste trabalho, selecionar progênies oriundas do cruzamento entre as cultivares Catuaí Amarelo IAC 2077-1-2-12-70 e Mundo Novo IAC 515-20 com boas características agronômicas, antes e após a poda tipo esqueletamento. O experimento foi implantado na Fazenda Experimental da Epamig, no município de Três Pontas, MG, em 1996, e após a avaliação de oito colheitas os cafeeiros foram submetidos à poda. Foram utilizadas 39 progênies e três cultivares, Catuaí Vermelho IAC 99, Rubi MG 1192, Acaiá Cerrado MG 1474, utilizadas como testemunhas, sendo avaliadas as características produtividade (antes e após a poda), rendimento de grãos, percentagem de frutos chochos, de grãos tipo chato e moca e de grãos com peneira alta, comprimento e número de nós no ramo plagiotrópico e comprimento do broto ortotrópico, após a poda das plantas. O genótipo 1189-12-52-2 foi o mais produtivo antes e após a poda do tipo esqueletamento. Os rendimentos superiores foram apresentados pelos genótipos 1189- 9-80-3, 1190-2-16-1 e Acaiá Cerrado MG 1474. Verificaram-se, em todos os cafeeiros estudados,baixos percentuais de frutos chochos e moca, apresentando alto percentual de grãos peneira 16 e acima. Os genótipos estudados apresentaram resposta satisfatória à poda.Item Performance of F4 arabic coffee progenies before and after framework pruning(Editora UFLA, 2013-01) Carvalho, Gladyston Rodrigues; Botelho, César Elias; Rezende, Juliana Costa de; Ferreira, André Dominguett; Cunha, Rodrigo Luz da; Pedro, Francisco CarlosThe use of densification in coffee plantations is one of the factors of increased productivity; however, there is the need to select genotypes adapted to this system of planting. The objective of this study was to select progenies from the cross between the Catuaí Amarelo IAC 2077-1-2-12-70 and Mundo Novo IAC 515-20 with good agronomic characteristics before and after framework pruning (cutting off all plagiotropic branches at 20-30 cm from the orthotropic branch). The experiment was conducted at the Experimental Farm of Epamig in the municipality of Tres Pontos, MG , in 1996 , and after evaluating eight harvests the trees underwent pruning. 39 progenies and three cultivars, IAC 99, Rubi MG 1192, Acaiá Cerrado MG 1474, were used as controls, with evaluations for productivity characteristics ( before and after pruning ), bean yield , percentage of fruits with empty locule, grain types such as flat and oval and grains with a high screen size , length and number of nodes in plagiotrophycal branch and length of the orthotropic bud, after pruning the plants. The genotype 1189-12- 52-2 was the most productive before and after framework pruning. The higher yields were presented by genotypes 1189- 9-80-3, 1190-2-16-1 and Acaiá Cerrado MG 1474. There were, in all studied coffee trees, low percentages of empty locule and oval fruit, presenting a high percentage of beans with a screen size of 16 and above. The genotypes studied showed satisfactory response to pruning.Item Sensorial characteristics of coffee (Coffea arabica L.) varieties in the Alto Paranaíba region(Editora UFLA, 2013-01) Chalfoun, Sara Maria; Pereira, Marcelo Cláudio; Carvalho, Gladyston Rodrigues; Pereira, Antonio Alves; Taciana Villela Savian; Botelho, Deila Magna dos SantosThe objective of this study was to verify the sensorial characteristics of grains of 21 Coffea arabica L. cultivars obtained from EPAMIG Experimental Farm in Patrocínio, Minas Gerais, in the Alto Paranaíba Region. The coffee cherries were husked and dried in wooden trays, until 11 to 12% humidity and sent to three Brazilian Specialty Coffee Association BSCA accredited professional coffee tasters. The data were statistically evaluated by multivariate analysis to compare the cultivars and group them. The following cultivars, listed in decreasing order according to the first principal component with scores above 80 points, thus considered to produce superior beverage based on the attributes with the highest scores (flavor, sweetness, balance, acidity, clean beverage and aspect), for the two methods, during the two –year study was cultivar H419-6- 2-5-2. The ascendancy of the cultivars and progenies tested, whether derived or not from the Timor Hybrid, did not affect their qualitative performance.