Coffee Tree
Mostrando 1-12 de 71 artigos, teses e dissertações.
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1. Coverage plants in the management of skeletal coffee
ABSTRACT Currently, one of the most used practices in national coffee production is skeletal pruning, to preserve productive capacity, correct plant architecture, minimize the occurrence of diseases, among others. Also, it reduces the plants diameter, exposing the soil to climatic conditions, erosion, loss of moisture and nutrients, negatively affecting the
Revista Ceres. Publicado em: 2022
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2. Extracts of the Native Brazilian Tree Garcinia gardneriana Inhibit Urediniospore Germination of Coffee Leaf Rust Fungus
The fungal Hemileia vastatrix is the causal agent of coffee leaf rust, one of the worst and devastating disease in coffee cultures worldwide. As a result of our research on natural products for the development of novel agrochemicals, we found that the hexane extract from leaves of the Brazilian medicinal plant Garcinia gardneriana, at 500 μg mL-1, inhibited
Journal of the Brazilian Chemical Society. Publicado em: 2022
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3. IAC Catuaí SH3 - a dwarf Arabica coffee cultivar with leaf rust resistance and drought tolerance
Abstract The cultivar IAC Catuaí SH3 was developed by the pedigree method, from the recombination of the coffee tree H 2077-2-5-46, of the Catuaí Vermelho germplasm, with accession IAC 1110-8, from the exotic cultivar BA10. Cultivar IAC Catuaí SH3 is high-yielding, resistant to coffee leaf rust and tolerant to drought.
Crop Breed. Appl. Biotechnol.. Publicado em: 31/10/2019
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4. Composición y estructura del dosel de sombra en sistemas agroforestales con café de tres municipios de Cundinamarca, Colombia
Abstract The composition and structure of the shade canopy in coffee plantations of the municipalities of Tibacuy, Pacho and San Juan de Rioseco, in Cundinamarca, Colombia, were studied. Fifteen (15) farms in each municipality were selected and, in each farm, a coffee plantation (Coffea arabica cv. Castillo), in which it was established a plot of 1000 m2, wh
Ciênc. Florest.. Publicado em: 30/09/2019
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5. ESTIMATING VEGETATION VOLUME OF COFFEE CROPS USING IMAGES FROM UNMANNED AERIAL VEHICLES
ABSTRACT Tree crops, such as Arabica coffee (Coffea arabica L.), present enormous technical challenges in terms of pesticide application. The correct deposition and distribution of the active ingredient throughout the aerial part of these plants depends on knowledge of the canopy volume, but manually determining this volume is time consuming and imprecise. T
Eng. Agríc.. Publicado em: 09/09/2019
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6. Análise de opções reais aplicada na diversificação da produção rural no estado do Paraná
Resumo O presente artigo tem o objetivo de analisar a contribuição do uso da Teoria das Opções Reais (TOR) na análise de investimentos da diversificação da produção rural no estado do Paraná. É uma pesquisa exploratória, com procedimento técnico documental, de caráter quantitativo, utilizando fontes primárias e secundárias, em corte transvers
Rev. Econ. Sociol. Rural. Publicado em: 15/07/2019
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7. Estágio sucessional de uma floresta estacional semidecidual secundária com distintos históricos de uso do solo no sul do Espírito Santo
Resumo Estudos sobre a estrutura vegetacional de fragmentos florestais que consideram o uso pretérito do solo podem contribuir para subsidiar ações conservacionistas e de restauração florestal. A partir disso, objetivamos comparar três sítios de um fragmento florestal com distintas histórias de perturbação e verificar se os mesmos diferem entre si
Rodriguésia. Publicado em: 19/06/2019
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8. Concentration and accumulation of micronutrients in robust coffee
ABSTRACT. Knowledge on the dynamics of micronutrients in coffee tree assists nutritional diagnosis and fertilization management. Therefore, the objective of this study was to evaluate the concentration and accumulation of micronutrients in the leaves and fruits of Coffea canephora. The experiment was managed in crops propagated for 2.5 years in a split-plot-
Acta Sci., Agron.. Publicado em: 13/06/2019
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9. IAC Obatã 4739 - dwarf arabic coffee cultivar with yellow fruits and resistant to leaf rust
Abstract Cultivar IAC Obatã 4739 was derived from a cross between coffee tree IAC 1669-20-1 and cultivar Catuaí Amarelo IAC 62. It is short and high-yielding, rust-resistant, has large and yellow fruits, medium to late maturation, excellent cup quality, and responds effectively to irrigation.
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-09
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10. Triple plagiotropic branch in coffee: a new promising mutant?
Abstract Coffee tree is a shrub with dimorphic branches. The orthotropic stem grows vertically with two near-horizontal plagiotropic branches, per node, in opposite phyllotaxy. The consecutive nodes of the orthotropic stem are organized in parastichies. We report here mutant plants of Coffea arabica with triple plagiotropic branch, resulted from the whorled
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-12
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11. Humic substances and its distribution in coffee crop under cover crops and weed control methods
ABSTRACT Humic substances (HS) comprise the passive element in soil organic matter (SOM), and represent one of the soil carbon pools which may be altered by different cover crops and weed control methods. This study aimed to assess HS distribution and characteristics in an experimental coffee crop area subjected to cover crops and cultural, mechanical, and c
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-08
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12. Fuzzy Classification in the Determination of Input Application Zones
ABSTRACT Correctly interpreting soil fertility and its spatial distribution within an area helps to lessen losses and environmental effects associated with agriculture, to optimize fertilization and liming practices. This study is aimed at using concepts and methods from spatial and temporal analyses to soil fertility and to develop a fuzzy classification me
Rev. Bras. Ciênc. Solo. Publicado em: 28/07/2016