Mineral nutrition and caffeine content in coffee leaves

Detalhes bibliográficos
Autor(a) principal: MAZZAFERA,PAULO
Data de Publicação: 1999
Tipo de documento: Relatório
Idioma: eng
Título da fonte: Bragantia
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051999000200018
Resumo: 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 4 pair of leaves. The omission of K induced the highest caffeine content in the leaves (24.5 g.kg-1). Caffeine in the control treatment was 21.9 g.kg -1. Absence of P induced the lowest content, 17.5 g.kg-1.
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spelling Mineral nutrition and caffeine content in coffee leavescaffeineCoffea arabica L.mineral nutritionThe 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 4 pair of leaves. The omission of K induced the highest caffeine content in the leaves (24.5 g.kg-1). Caffeine in the control treatment was 21.9 g.kg -1. Absence of P induced the lowest content, 17.5 g.kg-1.Instituto Agronômico de Campinas1999-01-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051999000200018Bragantia v.58 n.2 1999reponame:Bragantiainstname:Instituto Agronômico de Campinas (IAC)instacron:IAC10.1590/S0006-87051999000200018info:eu-repo/semantics/openAccessMAZZAFERA,PAULOeng2000-05-25T00:00:00Zoai:scielo:S0006-87051999000200018Revistahttps://www.scielo.br/j/brag/https://old.scielo.br/oai/scielo-oai.phpbragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br1678-44990006-8705opendoar:2000-05-25T00:00Bragantia - Instituto Agronômico de Campinas (IAC)false
dc.title.none.fl_str_mv Mineral nutrition and caffeine content in coffee leaves
title Mineral nutrition and caffeine content in coffee leaves
spellingShingle Mineral nutrition and caffeine content in coffee leaves
MAZZAFERA,PAULO
caffeine
Coffea arabica L.
mineral nutrition
title_short Mineral nutrition and caffeine content in coffee leaves
title_full Mineral nutrition and caffeine content in coffee leaves
title_fullStr Mineral nutrition and caffeine content in coffee leaves
title_full_unstemmed Mineral nutrition and caffeine content in coffee leaves
title_sort Mineral nutrition and caffeine content in coffee leaves
author MAZZAFERA,PAULO
author_facet MAZZAFERA,PAULO
author_role author
dc.contributor.author.fl_str_mv MAZZAFERA,PAULO
dc.subject.por.fl_str_mv caffeine
Coffea arabica L.
mineral nutrition
topic caffeine
Coffea arabica L.
mineral nutrition
description 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 4 pair of leaves. The omission of K induced the highest caffeine content in the leaves (24.5 g.kg-1). Caffeine in the control treatment was 21.9 g.kg -1. Absence of P induced the lowest content, 17.5 g.kg-1.
publishDate 1999
dc.date.none.fl_str_mv 1999-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/report
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format report
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051999000200018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051999000200018
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0006-87051999000200018
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto Agronômico de Campinas
publisher.none.fl_str_mv Instituto Agronômico de Campinas
dc.source.none.fl_str_mv Bragantia v.58 n.2 1999
reponame:Bragantia
instname:Instituto Agronômico de Campinas (IAC)
instacron:IAC
instname_str Instituto Agronômico de Campinas (IAC)
instacron_str IAC
institution IAC
reponame_str Bragantia
collection Bragantia
repository.name.fl_str_mv Bragantia - Instituto Agronômico de Campinas (IAC)
repository.mail.fl_str_mv bragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br
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