Results 51 to 60 of about 23,976 (292)

Mineral nutrition and caffeine content in coffee leaves [PDF]

open access: yesBragantia, 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

Evaluation of Analytical Methods to Determine Regulatory Compliance of Coffee Leaf Tea

open access: yesBiology and Life Sciences Forum, 2021
The leaves of the coffee plant Coffea are traditionally used in several countries worldwide to prepare tea-like beverages using aqueous infusion in hot water.
Valerie Segatz   +7 more
doaj   +1 more source

SPRAY RETENTION ON COFFEE LEAVES ASSOCIATED WITH TYPE AND CONCENTRATION OF ADJUVANTS [PDF]

open access: yesEngenharia Agrícola, 2019
ABSTRACT Agricultural spray adjuvants (ASA) are widely used in pesticide applications to enhance the performance of pesticides. The aim of this research was to investigate the effects of ASA on static surface tension (SST) and foliar spray retention on coffee leaves.
José E. da C. R. Cação   +4 more
openaire   +6 more sources

The Influence of Leaf Anatomical Traits on Photosynthetic in Coffee Leaves [PDF]

open access: yes, 2022
Abstract Leaf photosynthesis is largely determined by anatomical features. This study aimed to reveal the quantitative effects of the anatomical structure of Coffea arabica leaves on photosynthesis. Pearson’s correlation and path analysis were used to explore the correlation between
Ziwei Xiao   +6 more
openaire   +1 more source

Evaluasi formulasi dan pembuatan complete feed bahan pakan lokal daun kopi di peternak sapi potong Pasuruan Jawa Timur

open access: yesAGROMIX, 2021
This study aims to evaluate the preparation of feed formulations and the manufacture of complete feed fermentation based on local ingredients of coffee leaves.
Yudi Rustandi   +2 more
doaj   +1 more source

Effectiveness of Biopesticide Derived fromCassia spectabilis and Nicotiana tabacum Leaves Against the Main Insect Pests of Coffee and Its Effect On Other Arthropods [PDF]

open access: yes, 2006
An experiment on the effectiveness of biopesticide made of ramayana (Cassia spectabilis) and tobacco leaves (Nicotiana tabacum) it called as Casnic, on Hypothenemus hampeiand Planococcus citriand its effect on the arthropods population fauna in coffee ...
Wiryadiputra, Soekadar   +1 more
core   +2 more sources

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

Keragaan Pertumbuhan Tanaman Kopi New Planting Sistem Intensifikasi Berkelanjutan

open access: yesJurnal Agrotropika
Coffee establisment including new planting and replanting is an important effort for sustainable coffee production. This research aims to determine the growth performance of coffee establishment that implement a sustainable intensification system.
Rusdi Evizal, Fembriarti Erry Prasmatiwi
doaj   +1 more source

Ecology of Vespidae (Hymenoptera)Predators in Coffea arabica Plantations

open access: yesSociobiology, 2014
Social Vespidae exhibit control of Leucoptera coffeella (Lepidoptera: Lyonetiidae) in Brazil. The objective was to determine the ideal unit for sampling of predaceous Vespidae in coffee crops in the vegetative and reproductive phases.
Flavio Lemes Fernandes
doaj   +1 more source

Effects of shade on growth, production and quality of coffee (Coffea arabica) in Ethiopia [PDF]

open access: yes, 2011
The research work was conducted to evaluate the effect of shade on growth and production of coffee plants. To achieve this, growth and productivity of coffee plants growing under shade trees were compared with those of coffee plants growing under direct ...
Bote, A.D., Struik, P.C.
core  

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