Biblioteca do Café
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Item Initial vegetative development and early selection of arabica coffee cultivars in a low-altitude region(Instituto Agronômico (IAC), 2023-11-10) Filla, Vinícius Augusto; Coelho, Anderson Prates; Grossi Terceiro, Matheus; Morello, Orlando Ferreira; Lemos, Leandro BorgesThe cultivation of Coffea arabica L. in a low-altitude region is a sustainable alternative for diversifying the income of farmers. On account of the variability of available cultivars, the use of indirect selection through initial vegetative development may be an auxiliary tool for identifying the most suitable genotypes for this environment. This study aimed to identify the dwarf Arabica coffee cultivars with better initial development in a low-altitude region and the morphological traits with greater relevance for the early selection of cultivars with high yield potential. The experiment was installed in the northeast of São Paulo, Brazil. The experimental design used was randomized blocks with four replications. The treatments consisted of 17 dwarf Arabica coffee cultivars. There is variability among dwarf Arabica coffee cultivars for initial vegetative development. The growth and increase in the number of nodes of the plagiotropic branch can be used in early selection to identify cultivars with greater yield potential. The cultivars IAC Obatã 4739, Obatã IAC 1669-20, and Tupi IAC 1669-33 present higher initial vegetative performance in low-altitude environments. The results obtained are useful to breeders and producers for choosing the cultivars best adapted to cultivation in this environment.Item Characterization of Yellow Bourbon coffee strains for the production of differentiated specialty coffees(Instituto Agronômico (IAC), 2022-05-30) Romano, Lucicléia Souza; Giomo, Gerson Silva; Coelho, Anderson Prates; Filla, Vinicius Augusto; Lemos, Leandro BorgesThe demand for specialty coffees in the national and international market grows and generates an excellent opportunity for the exploration of new business. The cup quality of coffee is defined by the genetic predisposition of varietal groups, effects of the production environment, crop management, and form of post-harvest processing. Genotypes of Yellow Bourbon have already shown a predisposition to the production of excellent cup quality, but it may differ in sensory attributes and cup quality. The aim of this article was to evaluate the agronomic and qualitative performance of Yellow Bourbon strains from the Active Germplasm Bank of the Agronomic Institute of Campinas, in order to identify the best genotypes for the production of specialty coffees. The experiment was conducted in São Sebastião da Grama, SP, Brazil, at 1,100 meters of altitude in a medium-textured Ultisol. Treatments consisted of 14 strains of Yellow Bourbon, arranged in a randomized block design with three replicates. Field, post-harvest and laboratory evaluations were carried out. The strains IAC J3-1, IAC J9-16 and IAC J19-18-10 stood out in terms of yield values and sensory quality above the average of the studied group. The strains IAC J9-16 and IAC J19-18-10 showed predominance of floral and honey nuances, respectively, indicating that they may have high potential to express these characteristics in the beverage. The results suggested that there are Yellow Bourbon strains suitable for production and with superior cup quality, which highlights the importance of the appropriate choice of genotypes for the production of differentiated specialty coffees.Item Florescimento de cafeeiros sob manejos de irrigação, faces de exposição solar e posições na planta(Editora UFLA, 2014-04) Custódio, Anselmo Augusto de Paiva; Lemos, Leandro Borges; Mingotte, Fábio Luiz Checchio; Barbosa, José Carlos; Pollo, Gustavo Zanetti; Santos, Henrique Menezes dosInvestigaram-se diferentes manejos de irrigação sobre algumas características reprodutivas de cafeeiros em duas faces de exposição das plantas à radiação solar (FEPARS) e três posições na planta. O experimento no delineamento em parcelas sub subdivididas, com quatro repetições em blocos casualizados, foi conduzido em Matão (SP) na safra 2010/2011. Os tratamentos primários foram seis manejos de irrigação: NI=não irrigado; IC=irrigação continuada durante todo o ano; IC 14a-19m=IC, exceto entre 14 de abril a 19 de maio; IC 20m-24jn=IC, exceto entre 20 de maio a 24 de junho; IC 25jn-30jl= IC, exceto entre 25 de junho a 30 de julho e IC 31jl-04s= IC, exceto entre 31 de julho a 04 de setembro. Os tratamentos secundários foram as FEPARS: Sudeste e Noroeste. Os tratamentos ternários foram as posições na planta: terço superior, terço médio e terço inferior. Avaliou-se o número de ramificações, número e porcentagem de flores, número e porcentagem do pegamento e queda dos frutos. Nas plantas irrigadas ocorre o mesmo número e intensidade de floradas comparadas às plantas não irrigadas, entretanto estas ocorrem em épocas diferentes e mais precoce. Na FEPARS noroeste ocorre maior número de ramificações e flores, entretanto ocorre menor pegamento porcentual de frutos. A posição na planta do terço médio e superior promove, respectivamente, maior pegamento e queda de frutos. Nas plantas não irrigadas não há diferença no número de flores quanto à posição, entretanto ocorre menor concentração de florada na FEPARS noroeste. Nas plantas irrigadas ocorre maior número de flores no sentido terço superior ao inferior.