Results 71 to 80 of about 379,668 (201)

Perbandingan Kadar Kafein pada Jenis Kopi Hasil Perkebunan Bengkulu dengan Metode Spektrofotometri Ultraviolet

open access: yesIndonesian Journal of Pharmaceutical Education, 2022
Bengkulu is a province that is in the top five as a coffee producer in the archipelago. The survey proves that Bengkulu has a fairly large potential for producing coffee with many local coffee products from Bengkulu city plantations that are already ...
elly mulyani   +3 more
doaj   +1 more source

Diagrammatic scale for blister spot in leaves of coffee tree [PDF]

open access: yesAfrican Journal of Agricultural Research, 2015
Blister Spot is a disease transmitted through seeds. This characteristic of the disease reveals the studies of severity can offer more replies than the studies of incidence. Due to the inexistence of standardized for visual quantification of the Blister Spot’s severity, the aim of this work was to build up and validate a diagrammatic scale for ...
Freitas, Marcelo Loran de Oliveira   +4 more
openaire   +1 more source

Beberapa Hasil Inokulasi Pada Cakram Daun Kopi Dengan Hemileia Vastatrix Di Laboratorium [PDF]

open access: yes, 2002
Some results of inoculations on coffee leaf disks with Hemileia vastatrix. Leaf rust caused by Hemileia vastatrix B. et Br. is the most important disease on coffee worldwide. The obligate nature of H.
Cipta Ginting , Abdul Gafur, dan Rusdi Evizal
core  

CORRELATIONS BETWEEN SPAD READINGS, CHLOROPHYLL AND LEAF NITROGEN IN COFFEE CULTIVARS DURING FRUITING STAGE

open access: yesAgrarian, 2017
The methods currently used to determine the chlorophyll content and the amount of nitrogen present in leaves takes a long time to work, as well as the collection and destruction of the leaf tissues.
André Cabral França   +1 more
doaj   +1 more source

Effects of processing method and age of leaves on phytochemical profiles and bioactivity of coffee leaves

open access: yesFood Chemistry, 2018
The use of coffee leaves as a novel beverage has recently received consumer interest, but there is little known about how processing methods affect the quality of final product. We applied tea (white, green, oolong and black tea) processing methods to process coffee leaves and then investigated their effects on phytochemical composition and related ...
Xiu-Min Chen, Zhili Ma, David D. Kitts
openaire   +2 more sources

Drought tolerance in Coffee: Identification of candidate genes and study of its natural variation : [Abstract W154] [PDF]

open access: yes, 2010
Drought stress significantly affects coffee yield, productivity and quality. Thus, the goal of this study was to investigate the molecular mechanisms underlying the response to drought stress in coffee plants by different approaches.
Alves, Gabriel Sergio Costa   +8 more
core  

Fertirrigação e regulador de crescimento na produção de mudas de café em tubete [PDF]

open access: yes, 2018
The use of quality seedlings is important in establishing a productive coffee crop. However, the most widely used method to produce coffee seedlings is time consuming (6-12 months) and lacks new production technologies.
Carvalho, Mychelle   +4 more
core   +5 more sources

Leaf anatomy related to photosynthetic pathway in coffee trees (Coffea arabica L.,var. Caturra Rojo) exposed to different solar radiation levels at Sierra Maestra, Granma, Cuba

open access: yesActa Agronómica, 2016
A field experiment was conducted in order to investigate the effect of different solar exposition levels (open sunlight, regulated shade, and no regulated shade) on leaves anatomy of coffee trees (Coffea Arabica L. Var.
Luis Alfredo Rodríguez Larramendi   +5 more
doaj   +1 more source

Mechanisms of pathogenic transmission in agroforests: the role of leaf functional traits in shade coffee systems [PDF]

open access: yes, 2017
Coffee leaf rust (CLR), a pathogenic disease that results in premature leaf fall and significant yield loss, has become a major concern in coffee-growing regions, especially in Central and South America, after recent intense epidemics.
Avelino, Jacques   +2 more
core  

Functional analysis of CcDREB1D promoter region from two genotypes of Coffea canephora through genetic transformation of Nicotiana tabacum : S03P08 [PDF]

open access: yes, 2013
Although some studies in plant physiology resulted in a better understanding of the mechanisms involved in drought tolerance in coffee, knowledge about the metabolic and molecular changes involved in the response of the coffee plant to water deficit ...
Alves, Gabriel Sergio Costa   +4 more
core  

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