Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Ceres |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2016000400486 |
Resumo: | ABSTRACT Coffee is one of the main export commodities of Brazilian agribusiness. Phoma leaf spot [Phoma tarda (Stewart) Boerema & Bollen] is one of the most important coffee fungal diseases in Brazil. Therefore, this study aimed to evaluate the intensity of Phoma leaf spot in coffee seedlings supplied with different rates of Ca+2 and K+. The study was conducted under controlled conditions in a growth chamber, at the Department of Phytopathology - UFLA, from February 2010 to December 2011. The assay was repeated twice under the same conditions. The nutrient solutions consisted of five concentrations of K+ (3, 4, 5, 6, 7 mmol L-1) and Ca+2 (2, 4, 6, 8 and 10 mmol L-1). The experiment was arranged in a randomized block design, with 25 treatments and three replicates, with two plants per plot. The areas under incidence progress curve (AUIPC) and severity (AUSPC) were calculated. At the lowest rate of Ca2+ (2 mmol L-1) and highest K+ (6 and 7 mmol L-1), approximately, the AUIPC was the smallest. For the AUSPC, the lowest rates of Ca+2 and K+ resulted in the lowest severities. Supply of Ca+2 and K+ in nutrient solution reduced AUIPC and AUSPC of Phoma leaf spot, and these nutrients can be recommended for the management of the disease. |
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Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlingsincidenceseverityPhoma tarda (Stewart) Boerema & BollenCoffea arabica L.mineral nutritionABSTRACT Coffee is one of the main export commodities of Brazilian agribusiness. Phoma leaf spot [Phoma tarda (Stewart) Boerema & Bollen] is one of the most important coffee fungal diseases in Brazil. Therefore, this study aimed to evaluate the intensity of Phoma leaf spot in coffee seedlings supplied with different rates of Ca+2 and K+. The study was conducted under controlled conditions in a growth chamber, at the Department of Phytopathology - UFLA, from February 2010 to December 2011. The assay was repeated twice under the same conditions. The nutrient solutions consisted of five concentrations of K+ (3, 4, 5, 6, 7 mmol L-1) and Ca+2 (2, 4, 6, 8 and 10 mmol L-1). The experiment was arranged in a randomized block design, with 25 treatments and three replicates, with two plants per plot. The areas under incidence progress curve (AUIPC) and severity (AUSPC) were calculated. At the lowest rate of Ca2+ (2 mmol L-1) and highest K+ (6 and 7 mmol L-1), approximately, the AUIPC was the smallest. For the AUSPC, the lowest rates of Ca+2 and K+ resulted in the lowest severities. Supply of Ca+2 and K+ in nutrient solution reduced AUIPC and AUSPC of Phoma leaf spot, and these nutrients can be recommended for the management of the disease.Universidade Federal de Viçosa2016-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2016000400486Revista Ceres v.63 n.4 2016reponame:Revista Ceresinstname:Universidade Federal de Viçosa (UFV)instacron:UFV10.1590/0034-737X201663040008info:eu-repo/semantics/openAccessCatarino,Aricléia de MoraesPozza,Edson AmpélioPozza,Adélia Aziz AlexandreSantos,Leone Stabile diasVasco,Gabriel BrandãoSouza,Paulo Estevão deeng2016-09-14T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings |
title |
Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings |
spellingShingle |
Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings Catarino,Aricléia de Moraes incidence severity Phoma tarda (Stewart) Boerema & Bollen Coffea arabica L. mineral nutrition |
title_short |
Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings |
title_full |
Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings |
title_fullStr |
Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings |
title_full_unstemmed |
Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings |
title_sort |
Calcium and potassium contents in nutrient solution on Phoma leaf spot intensity in coffee seedlings |
author |
Catarino,Aricléia de Moraes |
author_facet |
Catarino,Aricléia de Moraes Pozza,Edson Ampélio Pozza,Adélia Aziz Alexandre Santos,Leone Stabile dias Vasco,Gabriel Brandão Souza,Paulo Estevão de |
author_role |
author |
author2 |
Pozza,Edson Ampélio Pozza,Adélia Aziz Alexandre Santos,Leone Stabile dias Vasco,Gabriel Brandão Souza,Paulo Estevão de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Catarino,Aricléia de Moraes Pozza,Edson Ampélio Pozza,Adélia Aziz Alexandre Santos,Leone Stabile dias Vasco,Gabriel Brandão Souza,Paulo Estevão de |
dc.subject.por.fl_str_mv |
incidence severity Phoma tarda (Stewart) Boerema & Bollen Coffea arabica L. mineral nutrition |
topic |
incidence severity Phoma tarda (Stewart) Boerema & Bollen Coffea arabica L. mineral nutrition |
dc.description.none.fl_txt_mv |
ABSTRACT Coffee is one of the main export commodities of Brazilian agribusiness. Phoma leaf spot [Phoma tarda (Stewart) Boerema & Bollen] is one of the most important coffee fungal diseases in Brazil. Therefore, this study aimed to evaluate the intensity of Phoma leaf spot in coffee seedlings supplied with different rates of Ca+2 and K+. The study was conducted under controlled conditions in a growth chamber, at the Department of Phytopathology - UFLA, from February 2010 to December 2011. The assay was repeated twice under the same conditions. The nutrient solutions consisted of five concentrations of K+ (3, 4, 5, 6, 7 mmol L-1) and Ca+2 (2, 4, 6, 8 and 10 mmol L-1). The experiment was arranged in a randomized block design, with 25 treatments and three replicates, with two plants per plot. The areas under incidence progress curve (AUIPC) and severity (AUSPC) were calculated. At the lowest rate of Ca2+ (2 mmol L-1) and highest K+ (6 and 7 mmol L-1), approximately, the AUIPC was the smallest. For the AUSPC, the lowest rates of Ca+2 and K+ resulted in the lowest severities. Supply of Ca+2 and K+ in nutrient solution reduced AUIPC and AUSPC of Phoma leaf spot, and these nutrients can be recommended for the management of the disease. |
description |
ABSTRACT Coffee is one of the main export commodities of Brazilian agribusiness. Phoma leaf spot [Phoma tarda (Stewart) Boerema & Bollen] is one of the most important coffee fungal diseases in Brazil. Therefore, this study aimed to evaluate the intensity of Phoma leaf spot in coffee seedlings supplied with different rates of Ca+2 and K+. The study was conducted under controlled conditions in a growth chamber, at the Department of Phytopathology - UFLA, from February 2010 to December 2011. The assay was repeated twice under the same conditions. The nutrient solutions consisted of five concentrations of K+ (3, 4, 5, 6, 7 mmol L-1) and Ca+2 (2, 4, 6, 8 and 10 mmol L-1). The experiment was arranged in a randomized block design, with 25 treatments and three replicates, with two plants per plot. The areas under incidence progress curve (AUIPC) and severity (AUSPC) were calculated. At the lowest rate of Ca2+ (2 mmol L-1) and highest K+ (6 and 7 mmol L-1), approximately, the AUIPC was the smallest. For the AUSPC, the lowest rates of Ca+2 and K+ resulted in the lowest severities. Supply of Ca+2 and K+ in nutrient solution reduced AUIPC and AUSPC of Phoma leaf spot, and these nutrients can be recommended for the management of the disease. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2016000400486 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2016000400486 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0034-737X201663040008 |
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 |
Universidade Federal de Viçosa |
publisher.none.fl_str_mv |
Universidade Federal de Viçosa |
dc.source.none.fl_str_mv |
Revista Ceres v.63 n.4 2016 reponame:Revista Ceres instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
Revista Ceres |
collection |
Revista Ceres |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1728006782405574656 |