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URI permanente desta comunidadehttps://thoth.dti.ufv.br/handle/123456789/3352
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Item Cycle pruning programmed on the grain yield of arabica coffee(Editora UFLA, 2019) Baitelle, Diego Corona; Verdin Filho, Abraão Carlos; Freitas, Sílvio de Jesus; Miranda, Guilherme Bessa; Vieira, Henrique Duarte; Vieira, Kezia MoraesThe cycle pruning programmed is a reinvigoration technique widely employed in Conilon coffee. This strategy may also be adopted for Arabica coffee to increase its crop longevity and yield. In this scenario, the present study proposes to examine the influence of the cycle pruning programmed on the vegetative and productive development of Arabica coffee. The experiment was developed in the field as a randomized-block design with four replicates. Treatments were tested in a 4 × 2 factorial arrangement consisting of four stem densities (4000, 8000, 12000 or 16000 stems ha-1) and two management strategies for the removal of plagiotropic branches (annual or biennial removal of branches which had reached 70% or more of their production capacity). For some variables, the treatments were organized as a 4 × 2 × 2 factorial arrangement in which the last factor corresponded to two regions of data collection in the plant (upper or lower). For all factorial arrangements, an additional treatment (control) was employed corresponding to traditional pruning (recepa). Annual or biennial removal of plagiotropic branches which had attained 70% or more of their production capacity can be adopted with no losses to crop yield. The cycle pruning programmed improves the distribution of branches, increases canopy area and prevents the occurrence of the “naked neck” phenomenon, observed in control treatment. Additionally, it provides better agronomic and productive performance; therefore, it can be used as a substitute for recepa.Item Arquitetura da copa do cafeeiro arábica conduzido com diferentes números de ramos ortotrópicos(Universidade Federal de Viçosa, 2018-09) Colodetti, Tafarel Victor; Tomaz, Marcelo Antonio; Rodrigues, Wagner Nunes; Verdin Filho, Abraão Carlos; Cavatte, Paulo Cezar; Reis, Edvaldo Fialho dosO estudo do comportamento do cafeeiro arábica conduzido com mais de um ramo ortotrópico surge como fonte de alternativas de melhoria da arquitetura da copa e da produção da lavoura cafeeira. Por isso, objetivou-se, com este trabalho, analisar a arquitetura da copa do cafeeiro arábica conduzido com diferentes números de ramos ortotrópicos por planta. Um experimento foi realizado em campo, no município de Santa Teresa, ES, em altitude de 740 m, topografia ondulado-acidentada, com precipitação e temperatura média anual de 1.282 mm e 21,1 oC, respectivamente. O espaçamento foi de 2,5 x 1,0 m e o cultivar foi o Catuaí Vermelho IAC44. Em novembro de 2012, aos oito anos de idade, a lavoura foi recepada e as brotações que surgiram foram conduzidas para promover o estabelecimento de três tratamentos referen- tes ao número de ramos ortotrópicos: um, dois ou três ramos por planta. O experimento seguiu delineamento em blocos casualizados, com oito blocos e os três tratamentos. Plantas de cafeeiro arábica com dois ou três ramos ortotrópicos não se diferiram e apresentaram maior área e volume de copa, densidade de enfolhamento e área foliar dos ramos plagiotrópicos. A condução do cafeeiro arábica com dois ramos ortotrópicos por planta proporcionou maior produção de café beneficiado por hectare, bem como maior proporção de grãos graúdos (grãos maiores e com massa mais homogênea).Item New management technology for arabica coffee: the cyclic pruning program for arabica coffee(Editora UFLA, 2016-10) Verdin Filho, Abraão Carlos; Volpi, Paulo Sérgio; Ferrão, Maria Amélia Gava; Ferrão, Romário Gava; Mauri, Aldo Luiz; Fonseca, Aymbiré Francisco Almeida da; Tristão, Fabiano Alixsandro; Andrade Júnior, Saul deThis study aimed to better understand the productive behavior of Coffea arabica when cultivated using the new management of Cyclic Pruning Program for Arabica Coffee (CPPAC), stablished using the same principles of the Cyclic Pruning Program for Conilon Coffee. The experiment was carried out in Baixo Guandú, Espírito Santo state, in the Southeast region of Brazil, in order to test the conditioning of this new pruning management for Arabica coffee (CPPAC) over the crop yield of a plantation of Catuaí Vermelho IAC 81. It was found increased crop yield with use of the (CPPAC) over the traditional management of Arabica coffee, considering five consecutive years of production. The (CPPAC) technique can be used as a viable alternative for pruning management of Arabica coffee.Item Conilon coffee yield using the programmed pruning cycle and different cultivation densities(Editora UFLA, 2014-10) Verdin Filho, Abraão Carlos; Tomaz, Marcelo Antonio; Ferrão, Romário Gava; Ferrão, Maria Amélia Gava; Fonseca, Aymbiré Francisco Almeida da; Rodrigues, Wagner NunesDetermining the correct population of plants and number of orthotropic stems to be kept per area, along with optimal pruning management, is very important for crops of Coffea canephora. The aim of this work was to improve conilon coffee cropping management, evaluating the influence of the programmed pruning cycle with different combinations of spacing and numbers of orthotropic stems per plant on crop yield. Two experiments were carried out: one with smaller spacing and lower numbers of stems per plant, and another with larger spacing and higher numbers of stems per plant. Both assays followed a triple factorial scheme 2 x 3 x 4 (2 spacing x 3 numbers of stems per plant x 4 harvests) in a random block statistical design, using four replications and 11 plants pen plot. The results show that a reduction in spacing associated with an increase in number of stems per plant has a positive effect on the conilon coffee yield.