Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/7204 |
Resumo: | Recent studies on coffee (Coffea arabica L.) cultivation in agroforestry systems in Southern Brazil have shown the potential of partial shading to improve management of this crop. The objective of this work was to evaluate microclimatic conditions and their effects on coffee production of plants shaded with pigeon pea (Cajanus cajan) in comparison to unshaded ones, from May 2001 to August 2002 in Londrina, State of Paraná, Brazil. The appraised microclimatic characteristics were: global radiation, photosynthetic and radiation balance; air, leaf and soil temperatures; and soil humidity. Shading caused significant reduction in incident global solar radiation, photosynthetically active radiation and net radiation, and attenuated maximum leaf, air and soil temperatures, during the day. Shade also reduced the rate of cooling of night air and leaf temperatures, especially during nights with radiative frost. Soil moisture at 0–10 cm depth was higher under shade. The shaded coffee plants produced larger cherries due to slower maturation, resulting in larger bean size. Nevertheless, plants under shade emitted less plagiotropic branches, with smaller number of nodes per branch, and fewer nodes with fruits, resulting in a large reduction in coffee production. These results show the need to find an optimal tree density and management that do not compromise coffee production and protect against extreme temperatures. |
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Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern BrazilCaracterização microclimática e produtividade de cafeeiros sombreados com guandu no Sul do BrasilCoffea arabica; Cajanus cajan; frost protection; photosynthetically active radiation; coffee production; shadeCoffea arabica; Cajanus cajan; proteção contra geada; photosynthetically active radiation; produção de cafeeiros; sombreamentoRecent studies on coffee (Coffea arabica L.) cultivation in agroforestry systems in Southern Brazil have shown the potential of partial shading to improve management of this crop. The objective of this work was to evaluate microclimatic conditions and their effects on coffee production of plants shaded with pigeon pea (Cajanus cajan) in comparison to unshaded ones, from May 2001 to August 2002 in Londrina, State of Paraná, Brazil. The appraised microclimatic characteristics were: global radiation, photosynthetic and radiation balance; air, leaf and soil temperatures; and soil humidity. Shading caused significant reduction in incident global solar radiation, photosynthetically active radiation and net radiation, and attenuated maximum leaf, air and soil temperatures, during the day. Shade also reduced the rate of cooling of night air and leaf temperatures, especially during nights with radiative frost. Soil moisture at 0–10 cm depth was higher under shade. The shaded coffee plants produced larger cherries due to slower maturation, resulting in larger bean size. Nevertheless, plants under shade emitted less plagiotropic branches, with smaller number of nodes per branch, and fewer nodes with fruits, resulting in a large reduction in coffee production. These results show the need to find an optimal tree density and management that do not compromise coffee production and protect against extreme temperatures.Recentes estudos sobre cafeeiros (Coffea arabica L.) cultivados em sistemas agroflorestais no Sul do Brasil têm mostrado o potencial do sombreamento parcial no manejo desta cultura. O objectivo deste trabalho foi avaliar as condições do microclima e seus efeitos na produção de café sombreado com guandu (Cajanus cajan), em comparação ao cultivado a pleno sol, no período de maio de 2001 a agosto de 2002 em Londrina, PR. As características microclimáticas avaliadas foram: radiação global, fotossintética e saldo de radiação; temperaturas do ar, da folha e do solo; e umidade do solo. O sombreamento causou significativa redução na radiação solar global incidente, na radiação fotossinteticamente ativa e na radiação líquida, e atenuou as temperaturas máximas foliar, do ar e do solo, durante o dia. O sombreamento também evitou o declínio acentuado, durante a noite, das temperaturas do ar e da folha, especialmente durante noites com geadas de radiação. Os valores de umidade do solo, na camada 0–10 cm de profundidade, foram maiores nos cafeeiros sombreados. As plantas sombreadas produzem frutos maiores em virtude da maturação mais lenta, entretanto, emitem menos ramos plagiotrópicos, com menor número de nós por ramo e poucos nós com frutos, o que resulta na redução da produção de café. Estes resultados evidenciam a necessidade de se definir uma densidade ótima de sombreamento, que não comprometa a produção e proteja contra as temperaturas extremas.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMorais, HeverlyCaramori, Paulo HenriqueRibeiro, Ana Maria de ArrudaGomes, José CarlosKoguishi, Mirian Sei2006-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7204Pesquisa Agropecuaria Brasileira; v.41, n.5, maio 2006; 763-770Pesquisa Agropecuária Brasileira; v.41, n.5, maio 2006; 763-7701678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/7204/4249info:eu-repo/semantics/openAccess2014-09-29T18:23:31Zoai:ojs.seer.sct.embrapa.br:article/7204Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-29T18:23:31Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern Brazil Caracterização microclimática e produtividade de cafeeiros sombreados com guandu no Sul do Brasil |
title |
Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern Brazil |
spellingShingle |
Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern Brazil Morais, Heverly Coffea arabica; Cajanus cajan; frost protection; photosynthetically active radiation; coffee production; shade Coffea arabica; Cajanus cajan; proteção contra geada; photosynthetically active radiation; produção de cafeeiros; sombreamento |
title_short |
Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern Brazil |
title_full |
Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern Brazil |
title_fullStr |
Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern Brazil |
title_full_unstemmed |
Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern Brazil |
title_sort |
Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern Brazil |
author |
Morais, Heverly |
author_facet |
Morais, Heverly Caramori, Paulo Henrique Ribeiro, Ana Maria de Arruda Gomes, José Carlos Koguishi, Mirian Sei |
author_role |
author |
author2 |
Caramori, Paulo Henrique Ribeiro, Ana Maria de Arruda Gomes, José Carlos Koguishi, Mirian Sei |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Morais, Heverly Caramori, Paulo Henrique Ribeiro, Ana Maria de Arruda Gomes, José Carlos Koguishi, Mirian Sei |
dc.subject.por.fl_str_mv |
Coffea arabica; Cajanus cajan; frost protection; photosynthetically active radiation; coffee production; shade Coffea arabica; Cajanus cajan; proteção contra geada; photosynthetically active radiation; produção de cafeeiros; sombreamento |
topic |
Coffea arabica; Cajanus cajan; frost protection; photosynthetically active radiation; coffee production; shade Coffea arabica; Cajanus cajan; proteção contra geada; photosynthetically active radiation; produção de cafeeiros; sombreamento |
description |
Recent studies on coffee (Coffea arabica L.) cultivation in agroforestry systems in Southern Brazil have shown the potential of partial shading to improve management of this crop. The objective of this work was to evaluate microclimatic conditions and their effects on coffee production of plants shaded with pigeon pea (Cajanus cajan) in comparison to unshaded ones, from May 2001 to August 2002 in Londrina, State of Paraná, Brazil. The appraised microclimatic characteristics were: global radiation, photosynthetic and radiation balance; air, leaf and soil temperatures; and soil humidity. Shading caused significant reduction in incident global solar radiation, photosynthetically active radiation and net radiation, and attenuated maximum leaf, air and soil temperatures, during the day. Shade also reduced the rate of cooling of night air and leaf temperatures, especially during nights with radiative frost. Soil moisture at 0–10 cm depth was higher under shade. The shaded coffee plants produced larger cherries due to slower maturation, resulting in larger bean size. Nevertheless, plants under shade emitted less plagiotropic branches, with smaller number of nodes per branch, and fewer nodes with fruits, resulting in a large reduction in coffee production. These results show the need to find an optimal tree density and management that do not compromise coffee production and protect against extreme temperatures. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-05-01 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/7204 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/7204 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/7204/4249 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.41, n.5, maio 2006; 763-770 Pesquisa Agropecuária Brasileira; v.41, n.5, maio 2006; 763-770 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416690960171008 |