Biblioteca do Café
URI permanente desta comunidadehttps://thoth.dti.ufv.br/handle/123456789/1
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Item Morphological, physiological, and agronomic traits of crossings of 'Icatu' x 'Catimor' coffee tree subjected to water deficit(Empresa Brasileira de Pesquisa Agropecuária - Embrapa, 2022-07-27) Coelho, Larissa Sousa; Tassone, Guilherme Augusto Teixeira; Carvalho, Gladyston Rodrigues; Silva, Vânia Aparecida; Viana, Mariana Thereza Rodrigues; Pereira, Fernanda Aparecida Castro; Nadaleti, Denis Henrique Silva; Silveira, Helbert Rezende de Oliveira; Botelho, Cesar EliasThe objective of this work was to select genotypes of Coffea arabica with good yield and potential tolerance to water deficit, as well as to try to understand the physiological and anatomical mechanisms involved in the adaptability of these genotypes to water stress. The physiological, anatomical, and agronomic traits of 19 genotypes of C. arabica were evaluated under the two following water conditions: regular irrigation and no irrigation (soil water deficit). The 'IPR 100', 2, 5, and 7 genotypes showed agronomic, physiological, and anatomical traits that contributed to a better water status maintenance in the initial development of coffee plants. Based on these results, these genotypes are potentially tolerant to water deficit. The 4, 10, 11, 14, 15, and 'Bourbon Amarelo IAC J10' genotypes show a lower adaptability of the anatomical structures under soil-water deficit conditions. The coffee tree genotypes display leaf plasticity, such as the thickness of palisade and spongy parenchyma, and the number, position, dimensions, and mobility of stomata under water deficit conditions.Item Productivity and beverage sensory quality of arabica coffee intercropped with timber species(Empresa Brasileira de Pesquisa Agropecuária - Embrapa, 2020) Freitas, Ana Flávia de; Nadaleti, Denis Henrique Silva; Silveira, Helbert Rezende de Oliveira; Carvalho, Gladyston Rodrigues; Venturin, Regis Pereira; Silva, Vânia AparecidaThe objective of this work was to evaluate the productivity and beverage sensory quality of arabica coffee under the influence of tree species cultivated at different spacings. The experiment was set in 2012, in the municipality of Santo Antônio do Amparo, in the state of Minas Gerais, Brazil. A randomized complete block design was carried out with four replicates and seven treatments, as follows: Catuaí Vermelho IAC 99 Coffea arábica in monoculture (3.40x0.65 m); and this cultivar intercropped at two spacings (9.0x13.6 and 18.0x13.6 m) in the coffee row ‒ either with African mahogany (Khaya ivorensis), teak (Tectona grandis), or pink cedar (Acrocarpus fraxinifolius). Three coffee rows were fixed between rows, totaling 13.6 m between the wooded rows. Productivity, sensory analysis (cup test), and content analysis of sensory attributes were evaluated in the 2017 and 2018 crop years. The treatments and years of harvest influenced productivity. The sensory analysis was positive for coffee intercropped with African mahogany and teak, in 2018. Sensory attributes and nuances are modified by the Years of harvest. Arabica coffee plants intercropped with African mahogany show a superior productivity, regardless of the spacing between species, as well as a higher sensory quality in the 2018 harvest.Item Características sensoriais e agronômicas de acessos de coffea do banco de germoplasma de Minas Gerais na safra 2017/2018(Embrapa Café, 2019-10) Ferreira, Waldinei Henrique Batista; Rezende, Juliana Costa de; Madeira, Natália da Silva; Fassio, Larissa de Oliveira; Santos, Greice Gonçalves; Nadaleti, Denis Henrique Silva; Pereira, Antônio Alves; Oliveira, Antônio Carlos Baião de; Carvalho, Gladyston Rodrigues; Botelho, Cesar EliasBancos de germoplasma são fontes de variabilidade genética e consequentemente fontes de características agronômicas desejadas nos programas de melhoramento. Com esse trabalho objetivou-se caracterizar 18 acessos de C. arabica L. do Banco de Germoplasma de Minas Gerais (BAG-MG), da Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG). O BAG-MG está sediado em Patrocínio-MG e conta com mais de 1500 acessos, dentre os quais estão inseridos muitas cultivares e mutantes, além de valioso material coletado na Etiópia representando formas silvestres espontâneas e subespontâneas de C. arabica L. Os acessos foram avaliados após a colheita de 2018 por meio da produtividade, percentagem de frutos chochos e também qualidade de bebida. Os dados de produtividade foram transformados pela Raiz quadrada - SQRT (Y) e posteriormente submetidos à análise de variância no software SISVAR, juntamente com os dados de percentagem de frutos chochos e qualidade de bebida. As médias obtidas foram submetidas ao teste de Scott Knott a 5% de significância. Por meio das análises estatísticas, todas as características avaliadas foram divididas em dois grupos. A produtividade variou de 11,3 a 25 sacas por hectare no grupo destaque. O percentual de frutos chochos demonstrou amplitude de 1 a 17% no primeiro grupo, composto por 15 acessos e de 26 a 39% no segundo grupo. Doze acessos foram considerados cafés especiais segundo os parâmetros de avaliação SCAA – Specialty Coffee Association of America (Associação Americana de Café Especiais). Há variabilidade entre os acessos estudados, sendo que oito se demonstraram superiores aos demais, se destacando em todas as caraterísticas avaliadas: Bourbon Vermelho MG0011, Bourbon Vermelho MG0025, Caturra Vermelho MG0187, Caturra Amarelo Colombiano MG0194, Pacamara MG0223, Híbrido de Timor UFV 376-01 MG0289, Mundo Novo x S795 UFV 315-04 MG0420 e Caturra Amarelo x CIFC H 358/5 UFV 320-22 MG0694. Esses acessos são promissores e podem ser utilizados nos futuros programas de melhoramento.Item Simultaneous selection in coffee progenies of mundo novo by selection indices(Editora UFLA, 2019-01) Tasson, Guilherme Augusto Teixeira; Nadaleti, Denis Henrique Silva; Carvalho, Gladyston Rodrigues; Pereira, Fernanda Aparecida Castro; Andrade, Vinícius Teixeira; Botelho, César EliasCoffee cultivars that are better adapted and more productive can help reduce production costs and make coffee cultivation more profitable. The Mundo Novo cultivar has stood out as one of the most productive cultivars of Coffea arabica L. Therefore, the aim of this work was to select Mundo Novo progenies with high bean yield capacity and with other agronomic characteristics of interest. We evaluated the bean yield, seed size, plant height, upper and lower canopy diameter, stem diameter, and plant vigor of 24 F 4 progenies and one check cultivar. The experimental design consisted of a randomized complete block design with three replicates and experiments were carried out in two sites: São Sebastião do Paraíso (SSP) and Três Pontas (TP), MG, Brazil. The mixed model approach was used to calculate the genotypic value for each progeny, after which the selective accuracy and genetic gain of the two best progenies in each trait were calculated, the simultaneous selection index of Mulamba and Mock was used to select the two most promising progenies at each site. In general, the genetic gain was higher at SSP than at TP. In SSP, the most promising progenies were 1 [IAC376-2 (M. Novo) x IAC386-17 (M. Novo)] and 20 [IAC382-10 (M. Novo) x IAC388-20 (M. Novo)]. In TP, the most promising progeny was 22 [H1535/181 (M. Novo) x (S795) 1344/10/5], together with the check (Mundo Novo IAC379/19). The highest selection gain was expressed for bean size (the percentage of beans retained in sieve 17).