Results 31 to 40 of about 379,316 (299)
Impacts of water availability on macronutrients in fruit and leaves of conilon coffee [PDF]
Pesquisa Agropecuária Brasileira, 2018 : The objective of this work was to evaluate the concentrations and accumulation of macronutrients in conilon coffee (Coffea canephora) fruit, and their concentrations in leaves, over two years, in irrigated and nonirrigated coffee plants. Three-year-old
André Monzoli Covre +4 more
doaj +2 more sources
Preliminary Study on Eublemma SP. (Eublemminae): a Lepidopteran Predator of Coccus Viridis (Hemiptera: Coccidae) on Coffee Plants in Bandarlampung, Indonesia [PDF]
, 2015 Preliminary study on Eublemma sp. (Eublemminae): a Lepidopteran predator of Coccus viridis (Hemiptera: Coccidae) on coffee plants in Bandarlampung, Indonesia.
Indriyati, I. (Indriyati) +1 more
core +1 more source
Studying chromium biosorption using arabica coffee leaves
Ingeniería e Investigación, 2009 This work was aimed at providing an alternative for removing heavy metals such as chromium from waste water (effluent) from the leather industry and galvanoplasty (coating with a thin layer of metal by electrochemical means), using coffee leaves as biomass. Using arabica coffee (Castle variety) leaves led to 82% chromium removal efficiency for 1,000 mg/
Oscar Fabián Higuera Cobos +2 more
openaire +1 more source
Effect of extracts from citric biomass, rusted coffee leaves and coffee berry husks on Phoma costarricencis of coffee plants [PDF]
Fitopatologia Brasileira, 2005 Phoma leaf spot, caused by Phoma costarricensis poses a serious threat to coffee (Coffea arabica) production, especially in the highlands of the state of Minas Gerais, Brazil. Extracts of citric biomass, coffee berry husks and coffee leaves severely affected by rust caused by Hemileia vastatrix, were evaluated against P. costarricensis.
Barguil, Beatriz M +4 more
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Mineral nutrition and caffeine content in coffee leaves [PDF]
Bragantia, 1999 The effect of nutrient supply on the caffeine content of coffee (Coffea arabica L.) leaves was investigated. Seeds were germinated in nutrient-agar media lacking N, P, K, Ca, Mg, S, Zn, B or Mo. The control treatment contained all essential nutrients. The caffeine concentration was determined seven months after seed sowing when the seedlings have 3 to ...
openaire +4 more sources
Genetics and Molecular Biology, 2018 Coffee is one of the most valuable agricultural commodities and the plants’ leaves are the primary site of infection for most coffee diseases, such as the devastating coffee leaf rust.
Leandro Pio de Sousa +2 more
doaj +1 more source
Chemical attributes of an Oxisol with the addition of conilon coffee straw biochar
Pesquisa Agropecuária Brasileira, 2023 The objective of this work was to evaluate the effects of increasing rates of biochar produced with coffee straw, at two pyrolysis temperatures, on the chemical attributes of an Oxisol cultivated with conilon coffee (Coffea canephora) and on the nutrient
Anarelly Costa Alvarenga +5 more
doaj +1 more source
Fluid dynamics How coffee leaves its mark [PDF]
Nature, 1997 Many scientists are copious producers of coffee stains; few study them. But some insight has now been gained into the physics of evaporating liquid droplets from a study that explains why coffee stains are ring-like, with most of the material deposited at their perimeter.
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Applied Food ResearchResearch on the chemical composition of coffee beans and its correlation with sensory quality is advancing, but the metabolites in coffee leaves have often been overlooked.
Robrecht Bollen +11 more
doaj +1 more source
Colombian coffee tree leaves multispectral images dataset
Data in BriefIn this work, a unique database of 6726 multispectral images of coffee leaves is presented. These images were captured in JPG format for the RGB photos and in TIF format for the five multispectral bands: blue, green, red, NIR and red edge, providing a detailed view of different wavelengths of the electromagnetic spectrum.
Jorge Luis Aroca-Trujillo +1 more
openaire +3 more sources