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Item Agronomic performance of Arabica coffee cultivars in the subtropical humid environment of Vale do Ribeira Paulista, Brazil(Universidade Federal de Viçosa, 2022-01-09) Carvalho, Alex Mendonça de; Teramoto, Érico Tadao; Botelho, Cesar Elias; Carvalho, Gladyston Rodrigues; Lima, Amador Eduardo de; Guerreiro Filho, OliveiroThis research is related to the evaluation of vegetative growth parameters, initial yield and incidence of pests and diseases of twelve Arabica coffee cultivars submitted to the subtropical humidity environment of Vale do Ribeira Paulista, Brazil. The experiment was performed in the Experimental Campus of the UNESP in Registro, in a randomized block design, with three replications. Stem diameter, number of plagiotropic branches, plant height, number of internodes of plagiotropic branches, length of the first plagiotropic branch, incidence of brown eye spot and phoma leaf spot on coffee leaves, infestation by leaf miner and the yield of cultivars were evaluated. The results obtained allowed to conclude that: i) cultivars Catuaí Amarelo IAC 62, Catuaí Vermelho IAC 99 and Mundo Novo IAC 379-1 were higher than the others, with yield above the national average in 2020 and percentage of flat beans below 10%; ii) all cultivars evaluated showed a similar level of increment of variables that indicate plant growth and reproductive development; iii) the cultivation environment is favorable to infestation by the leaf miner and unfavorable to the incidence of rust; iv) The prevailing climatic conditions in the Vale do Ribeira Paulista is suitable for the production of Arabica coffee.Item Digital imaging of coffee leaves under different nitrogen concentrations applied to soil(Universidade Federal de Viçosa, 2022-01-09) Godoy, Leandro José Grava de; Carvalho, Alex Mendonça de; Freitas, Ana Flávia de; Botelho, Cesar Elias; Garibaldi, João Luís Teodoro; Ferrari, SamuelBrazil is the largest Coffea arabica L. producer and exporter in the world market. In view of the need for nitrogen fertilization, the objective of this work was to evaluate the use of digital images of coffee leaves as a function of nitrogen concentration and cultivars, as well as to evaluate the most adequate sampling of this technique to predict leaf nitrogen. The experiment was set in a greenhouse, at UNESP - Experimental Campus of Registro-SP, using 12L pots with medium sand. A completely randomized design was adopted, in a 4 x 2 factorial scheme, with four concentrations of N (0, 50, 100 and 200 mg dm-3), and two coffee cultivars (Mundo Novo and Obatã), with ten replications. The variables evaluated were: hue, dark green color index (DGCI), leaf area and leaf nitrogen content. The hue and DGCI were influenced by N concentration, cultivar and are dependent on the day after treatment application and the number of leaves used. The use of five leaves per replication was more adequate to estimate leaf N content. Hue, DGCI and leaf area were higher in Obatã depending on the day after application of the treatment and N concentration.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 Nutritional efficiency in phosphorus of arabica coffee genotypes(Editora UFLA, 2021) Vilela, Diego Júnior Martins; Coelho, Larissa Sousa; Silva, Douglas Ramos Guelfi; Carvalho, Gladyston Rodrigues; Botelho, Cesar Elias; Ferreira, André DominghettiNutritional efficiency is a term used to characterize plants in their capacity to uptake and use nutrients, being related to the efficiency of uptake, translocation, and utilization of nutrients. Different coffee genotypes are expected to exhibit variability in their nutritional efficiency. This work aimed to evaluate the phosphorus nutritional efficiency in arabica coffee genotypes. The experiment was carried out in a greenhouse of the Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG), located in the municipality of Lavras – Minas Gerais, Brazil. The experimental design was a randomized complete block design, in a 10x2 factorial scheme (10 arabica coffee genotypes and two dosages of phosphate fertilization), with four replicates. Each experimental plot consisted of one pot with ten liters of soil, with one plant. The cultivars Catiguá MG2, MGS Ametista and Sarchimor MG 8840 are neither efficient nor responsive to phosphate fertilization. Progeny H 6-47-10 pl. 3 and the cultivar Catuaí Vermelho IAC 144 are not efficient but are responsive to phosphate fertilization. The cultivars Paraíso MG H 419-1, Topázio MG 1190 and MGS Paraíso 2 are efficient but are not responsive to phosphate fertilization. The cultivars Bourbon Amarelo IAC J10 and MGS Aranãs are efficient and responsive to phosphate fertilization.Item MG Travessia: a coffee arabica cultivar productive and responsive to pruning(Crop Breeding and Applied Biotechnology, 2017-07) Carvalho, Gladyston Rodrigues; Bartholo, Gabriel Ferreira; Pereira, Antônio Alves; Rezende, Juliana Costa de; Botelho, Cesar Elias; Oliveira, Antônio Carlos Baião de; Silva, Felipe Lopes daThis paper presents the results of progeny 1190-1170-2, which was recorded as ‘MGS Travessia’ and selected based on its performance in the state of Minas Gerais. The cultivar has short size, cylindrical canopy, high yield capacity, high vegetative vigor, very satisfactory husk/bean ratio, grain quality compatible to traditional cultivars, and is very responsive to skeleton pruning.Item Selection of coffee progênies for resistance to leaf rust and favorable agronomic traits(Editora UFLA, 2019-04) Dias, Rafael Almeida; Ribeiro, Marcelo Resende; Carvalho, Alex Mendonça de; Botelho, Cesar Elias; Mendes, Antonio Nazareno Guimarães; Ferreira, André Dominghetti; Fernandes, Fernando CostaThe objective of this study was to select coffee progenies with better assessment that can result in coffee rust resistant cultivars and better agronomic characteristics than the traditional ones. The essay was performed at the EPAMIG experimental field in Patrocínio, state of Minas Gerais, Brazil. Twenty-five progenies in the F 3 generation were studied. The experiment was set in a randomized complete block design with three replicates and ten plants per plot, arranged in rows at 3.5x0.7m. Productivity assessment, fruit production, in liters of “farm coffee” per plot, bean rating in a sieve (16 or above), and plant vigor were accessed in three different harvest seasons (2011/2012 harvest to 2014/2015 harvest), and coffee rust incidence and severity were then evaluated for 2016. The production profit estimation through the selection was also assessed, by the gain of direct selection for each characteristic, when compared to the rank addition. Progenies 13 (Icatu V. IAC 4040 x IAC 5002) and 3 (Icatu A. IAC 2944 x IAC 5002) were promising in generation advance, for being among the five most productive progenies. The selection gain reached by direct selection was superior than the gain of the total rank additions.Item Initial productive performance of coffee progenies in an area infested by Meloidogyne paranaensis(Editora UFLA, 2018-10) Santos, Henrique Frederico; Salgado, Sonia Maria de Lima; Mendes, Antônio Nazareno Guimarães; Carvalho, Alex Mendonça de; Botelho, Cesar Elias; Andrade, Vinicius TeixeiraIn this study, we aimed to carry out a selection of Coffea arabica progenies in areas infested by Meloidogyne paranaensis in order to select materials that are resistant to this nematode, with desirable agronomic characteristics. The experiment was set on Guaiçara Farm, located in the Municipality of Piumhi – MG, in February 2012. Twenty-one coffee progenies were evaluated in the F5 generation and 5 commercial cultivars were used as a control. A randomized complete block design was used, with three replicates, totaling 78 plots, consisting of eight plants each. The spacing used was 3.00 x 0.50 m in the rows and between plants, respectively. The populations of M. paranaensis per gram of coffee roots, productivity (bags. ha-1 ), plant vigor, maturation cycle, maturation uniformity, coffee ranking by grain size (sieve 17 and above), and classification of mocha coffee were evaluated. It was concluded that progenies MG 0179-3-R1-151 and MG 0185-2-R2-132 are resistant to M. paranaensis and have good agronomic characteristics in an area naturally infested by this nematode, thus indicated for plantations in this situation. Nine progenies reveal tolerance/resistance characteristics to M. paranaensis.Item Desempenho agronômico de seleções de café Bourbon Vermelho e Bourbon Amarelo de diferentes origens(Empresa Brasileira de Pesquisa Agropecuária - Embrapa, 2013-04) Ferreira, André Dominghetti; Carvalho, Gladyston Rodrigues; Rezende, Juliana Costa de; Botelho, Cesar Elias; Rezende, Ramiro Machado; Carvalho, Alex Mendonça deO objetivo deste trabalho foi avaliar a adaptabilidade e estabilidade fenotípica e outras características de interesse agronômico de genótipos de café Bourbon Vermelho e Bourbon Amarelo, para selecionar os de melhor desempenho no Estado de Minas Gerais. Foram avaliados 17 genótipos pertencentes ao grupo Bourbon, bem pontuados em concursos de qualidade de bebida, além de três cultivares amplamente cultivadas no estado, utilizadas como testemunhas. Os experimentos foram instalados em dezembro de 2005, nos municípios de Lavras, Santo Antônio do Amparo, Três Pontas, Campos Altos e Patrocínio. As avaliações foram realizadas durante as quatro primeiras colheitas, nos anos agrícolas 2007/2008, 2008/2009, 2009/2010 e 2010/2011, e compreenderam as seguintes características: produtividade de grãos, adaptabilidade e estabilidade fenotípica, percentagem de frutos chochos, vigor vegetativo e classificação por peneira. Há variabilidade genética dentro do grupo de Bourbon estudado. Os genótipos de Bourbon apresentam produtividades satisfatórias em todos os locais avaliados. O genótipo Bourbon Vermelho 2 apresenta maior adaptabilidade, tendo-se destacado quanto a todas as características avaliadas.Item Adaptabilidade e estabilidade fenotípica de cultivares de café arábica em Minas Gerais(Empresa Brasileira de Pesquisa Agropecuária - Embrapa, 2010-12) Botelho, Cesar Elias; Rezende, Juliana Costa de; Carvalho, Gladyston Rodrigues; Carvalho, Alex Mendonça de; Andrade, Vinicius Teixeira; Barbosa, Cintia ReisO objetivo deste trabalho foi avaliar a adaptabilidade e a estabilidade fenotípicas para a produtividade de cultivares de cafeeiro do grupo Catuaí, pela metododologia de Annicchiarico. Foram instalados e conduzidos experimentos em Três Pontas, Campos Altos e Capelinha, em Minas Gerais. O delineamento foi o de blocos ao acaso, com quatro repetições e seis plantas por parcela. Os tratamentos foram constituídos por 15 cultivares do grupo Catuaí e cinco testemunhas. As avaliações da produtividade foram realizadas em seis colheitas nas safras de 2003/2004 a 2008/2009. Posteriormente, foi realizada a análise conjunta dos três locais e a avaliação da adaptabilidade e da estabilidade das cultivares. Na safra 2008/2009, foi avaliado o percentual de frutos chochos e a percentagem de grãos em peneira alta. As cultivares Catuaí Vermelho IAC 15, Catuaí Amarelo IAC 30, Catuaí Amarelo IAC 62 e Catuaí Vermelho IAC 72 são mais promissoras, pois aliam maiores estabilidade e adaptabilidade em ambientes favoráveis e desfavoráveis com alta média de produtividade. As cultivares Catuaí Vermelho IAC 100, Catuaí Amarelo IAC 86, Rubi MG 1192 e Catuaí Vermelho IAC 144 têm o mais alto percentual de peneira alta. Todas as progênies têm baixo percentual de grãos chochos.Item Correlação entre crescimento e produtividade de cultivares de café em diferentes regiões de Minas Gerais, Brasil(Empresa Brasileira de Pesquisa Agropecuária - Embrapa, 2010-03) Carvalho, Alex Mendonça de; Mendes, Antônio Nazareno Guimarães; Carvalho, Gladyston Rodrigues; Botelho, Cesar Elias; Gonçalves, Flávia Maria Avelar; Ferreira, André DominghettiO objetivo deste trabalho foi avaliar características de crescimento de cafeeiros nos estágios iniciais de desenvolvimento e determinar suas correlações com a primeira produtividade de lavouras cultivadas em diferentes ambientes. Foram avaliadas 22 cultivares resistentes à ferrugem, e três testemunhas suscetíveis, em cinco locais representativos do cultivo de cafeeiro no Estado de Minas Gerais. Os experimentos foram realizados de 2005 a 2008, em blocos ao acaso, com três repetições. Além da produtividade inicial dos cultivos, foram avaliadas cinco características de crescimento, aos 12 meses do plantio: diâmetro de caule, número e comprimento dos ramos plagiotrópicos, altura de plantas e número de nós. Estimaram-se as correlações genotípicas e fenotípicas entre todas as características avaliadas. As cultivares Pau Brasil MG1 e Catuaí Amarelo IAC 62 foram superiores em pelo menos quatro das cinco características avaliadas, em todos locais de cultivo. Há correlação positiva entre a produtividade inicial do cafeeiro e as características de crescimento avaliadas, com exceção do número de nós.