Results 51 to 60 of about 2,145 (144)

Soil organic matter and F1 hybrid cultivar influence Coffea arabica yields in south‐central Guatemala

open access: yesAgronomy Journal, Volume 118, Issue 2, March/April 2026.
Abstract Smallholders produce 60% of global coffee (Coffea arabica) supply but lack recommendations on nutrient management. We tested hypothesized N‐ and K‐driven yield gaps using on‐farm omission trials established across 21 fields in Guatemala. The effects of a single and combined application of N (285 kg ha−1) and K (350 kg ha−1) were evaluated for ...
Heidi Allen Asensio   +4 more
wiley   +1 more source

Características morfofisiológicas asociadas con el rendimiento del café Morphological and physiological characteristics associated with yield in coffee trees

open access: yesAgronomía Colombiana, 1988
Un experimento de campo se llevó a cabo para analizar y comparar el efecto de algunas características morfofisiológicas sobre el rendimiento de 5 variedades de café de porte bajo en condiciones de alta densidad de siembra.
Salazar Jose Nestor   +2 more
doaj  

Leaf Nutrient Remobilization and Its Relationship With Root Growth in Arabica Coffee

open access: yesInternational Journal of Agronomy, Volume 2026, Issue 1, 2026.
The flow of nutrients from mature leaves to priority sinks as young leaves and roots is one of the strategies for efficient use of nutrients. This study aimed to evaluate the relative remobilization (RR) of N, P, K, Mg, Cu, Fe, and Zn from mature to young leaves during the development stages of coffee fruits and its relationship with root growth in ...
Herminia Emilia Prieto Martinez   +4 more
wiley   +1 more source

Growth effects of water excess on coffee seedlings (Coffea arabica L.)

open access: yesActa Scientiarum. Agronomy, 2014
The objective of the present study was to evaluate the interference of water excess in soil on the growth of young coffee plants of the Mundo Novo and Catuaí cultivars.Plants were subjected to the following three different substrate water availability ...
Helbert Rezende de Oliveira Silveira   +5 more
doaj   +1 more source

The Dynamic Nature of Hemileia vastatrix Berk. & Broome and Management Options for Coffee Leaf Rust

open access: yesInternational Journal of Agronomy, Volume 2026, Issue 1, 2026.
Coffee leaf rust, caused by Hemileia vastatrix Berk. & Broome, remains the most important disease of Arabica coffee, causing global losses of approximately USD 1‐2 billion annually and threatening the livelihoods of over 125 million people who depend on the crop.
Kanyua Stella   +4 more
wiley   +1 more source

Evaluation and selection of progenies from cross of Catuaí with Mundo Novo coffee cultivars [PDF]

open access: yes, 2006
The objective of this paper was to select coffee progenies from the crosses of Catuaí with Mundo Novo , the most productives and adapted to different environment.
Bartholo, Gabriel Ferreira   +3 more
core  

Respostas nutricionais de cafeeiros Catuaí e Icatu a doses de calcário em subsuperfície Nutritional response of Catuaí and Icatú coffee plants to soil subsurface liming [PDF]

open access: yes, 2006
O aprofundamento do sistema radicular no solo é condicionado por relações Ca/Al adequadas, podendo a calagem subsuperficial apresentar efeito positivo no crescimento das raízes e na absorção de nutrientes.
Roberto Ferreira Novais   +14 more
core   +2 more sources

Paving the Way for Rearing Closterocerus coffeellae: Effect of Adult Food Source and Oviposition Behavior in Leucoptera coffeella

open access: yesEntomologia Experimentalis et Applicata, Volume 173, Issue 11, Page 1226-1235, November 2025.
This study evaluated food sources for adult Closterocerus coffeellae survival and oviposition behavior. Adults were fed honey (10%), Hibiscus nectar, an artificial diet, or received no food. Male survival was higher on the artificial diet, whereas honey (10%) increased female survival.
Mateus P. dos Santos   +9 more
wiley   +1 more source

Avaliação de compostos não-voláteis em diferentes cultivares de cafeeiro produzidas na região sul de Minas Gerais = Evaluation of non-volatile compounds in different cultivars of coffee cultivated in southern Minas Gerais

open access: yesActa Scientiarum. Agronomy, 2009
O presente trabalho teve como objetivo avaliar os teores de trigonelina, ácidos clorogênicos (5-ACQ) e cafeína em grãos de diferentes cultivares de cafeeiro (Coffea arabica L.). As cultivares avaliadas foram coletadas na Fazenda Experimental da Epamig em
Marcelo Ribeiro Malta   +1 more
doaj  

Non‐Independent Co‐Occurrence of Two Important Fungal Pathogens of Coffee Suggests a Potential Trade‐Off in Varietal Resistance

open access: yesJournal of Phytopathology, Volume 173, Issue 5, September/October 2025.
ABSTRACT Coffee leaf rust caused by Hemileia vastatrix and American leaf spot caused by Mycena citricolor are important fungal diseases of coffee that cause severe yield losses. While coffee leaf rust received much attention based on the recent outbreak in Latin America, we report here on an association pattern of American leaf spot with the presence ...
Chenyang Su   +4 more
wiley   +1 more source

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