Phenology of coconut palms on the Coastal Zone of Pernambuco, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/6398 |
Resumo: | The objective of the present work was to study the phenology of two coconut palm cultivars (yellow dwarf, green dwarf) and a hybrid (PB 121). The study was conducted at the Itapirema Research Unit, Goiana, PE, Brazil. Weekly observations were taken from the vegetative and reproductive phases of five plants of each one of the cultivars studied, during the period of January/96 through January/97. Data on the water balance were used to associate phenology and local water availability. The amount of degrees-day varied between 266 degrees-day, during the rainy season, and 350 degrees-day, during the dry season. The predominant quadrant for the emission of the inflorescence as well as for the wind direction was determined. Also the indexes of flower fecundity and fruit production were established. The species studied is perennial. All three cultivars produced around 11 leaves yearly. Dead leaves were verified during the whole experiment period. Flowering occurred during the whole year. The plants produced one inflorescence/month, occasionally two (yellow dwarf, hybrid), during the dry period. The cultivars produced the same number of inflorescences, but not the same in development. The flowering is cornucopia type. Fruits under different development stages were observed in a same specimen and cluster. The wind direction, as well as the quadrant of inflorescence position established were predominantly Southeastern. There were significant differences among the treatments. |
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Phenology of coconut palms on the Coastal Zone of Pernambuco, BrazilFenologia do coqueiro na zona costeira de PernambucoCocos nucifera; water availability; seasonal variation; periodicityCocos nucifera; disponibilidade hídrica; variação sazonal; periodicidadeThe objective of the present work was to study the phenology of two coconut palm cultivars (yellow dwarf, green dwarf) and a hybrid (PB 121). The study was conducted at the Itapirema Research Unit, Goiana, PE, Brazil. Weekly observations were taken from the vegetative and reproductive phases of five plants of each one of the cultivars studied, during the period of January/96 through January/97. Data on the water balance were used to associate phenology and local water availability. The amount of degrees-day varied between 266 degrees-day, during the rainy season, and 350 degrees-day, during the dry season. The predominant quadrant for the emission of the inflorescence as well as for the wind direction was determined. Also the indexes of flower fecundity and fruit production were established. The species studied is perennial. All three cultivars produced around 11 leaves yearly. Dead leaves were verified during the whole experiment period. Flowering occurred during the whole year. The plants produced one inflorescence/month, occasionally two (yellow dwarf, hybrid), during the dry period. The cultivars produced the same number of inflorescences, but not the same in development. The flowering is cornucopia type. Fruits under different development stages were observed in a same specimen and cluster. The wind direction, as well as the quadrant of inflorescence position established were predominantly Southeastern. There were significant differences among the treatments.O objetivo do trabalho foi estudar a fenologia do coqueiro em duas cultivares (Anão-amarelo, Anão-verde) e um híbrido (PB 121), na Unidade de Execução de Pesquisa de Itapirema, Goiana, PE. Realizaram-se observações semanais das fases vegetativas e reprodutivas de cinco plantas de cada cultivar e do híbrido, durante o período janeiro/96 a janeiro/97. Dados do balanço hídrico foram utilizados para associar a fenologia às disponibilidades hídricas locais. A quantidade de graus-dia variou entre 266 graus-dia, na estação chuvosa, e 350 graus-dia, na estação seca. Determinou-se o quadrante predominante na emissão de inflorescência e a direção do vento. Estabeleceram-se os índices de fecundação das flores e produção dos frutos. A espécie em estudo é uma planta perenifólia. As cultivares e o híbrido produziram cerca de 11 folhas anualmente. Verificaram-se folhas mortas durante todo o período de observação. Houve floração durante todo o ano. As plantas emitem uma inflorescência/mês, ocasionalmente duas (Anão-amarelo e híbrido), no período seco. As cultivares têm o mesmo número de inflorescências emitidas, mas não o mesmo número de inflorescências desenvolvidas. A floração é do tipo cornucópia. Observaram-se frutos em diferentes estádios de desenvolvimento num mesmo espécime e cacho. A direção do vento, assim como o quadrante na emissão de inflorescências estabelecidos foi predominantemente o Sudeste. Houve diferenças significativas entre os tratamentos.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraLeite, Isa Regina do MonteEncarnação, Carlos Ramirez Franco da2002-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6398Pesquisa Agropecuaria Brasileira; v.37, n.6, jun. 2002; 745-752Pesquisa Agropecuária Brasileira; v.37, n.6, jun. 2002; 745-7521678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6398/3455info:eu-repo/semantics/openAccess2014-07-22T17:11:08Zoai:ojs.seer.sct.embrapa.br:article/6398Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-07-22T17:11:08Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Phenology of coconut palms on the Coastal Zone of Pernambuco, Brazil Fenologia do coqueiro na zona costeira de Pernambuco |
title |
Phenology of coconut palms on the Coastal Zone of Pernambuco, Brazil |
spellingShingle |
Phenology of coconut palms on the Coastal Zone of Pernambuco, Brazil Leite, Isa Regina do Monte Cocos nucifera; water availability; seasonal variation; periodicity Cocos nucifera; disponibilidade hídrica; variação sazonal; periodicidade |
title_short |
Phenology of coconut palms on the Coastal Zone of Pernambuco, Brazil |
title_full |
Phenology of coconut palms on the Coastal Zone of Pernambuco, Brazil |
title_fullStr |
Phenology of coconut palms on the Coastal Zone of Pernambuco, Brazil |
title_full_unstemmed |
Phenology of coconut palms on the Coastal Zone of Pernambuco, Brazil |
title_sort |
Phenology of coconut palms on the Coastal Zone of Pernambuco, Brazil |
author |
Leite, Isa Regina do Monte |
author_facet |
Leite, Isa Regina do Monte Encarnação, Carlos Ramirez Franco da |
author_role |
author |
author2 |
Encarnação, Carlos Ramirez Franco da |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Leite, Isa Regina do Monte Encarnação, Carlos Ramirez Franco da |
dc.subject.por.fl_str_mv |
Cocos nucifera; water availability; seasonal variation; periodicity Cocos nucifera; disponibilidade hídrica; variação sazonal; periodicidade |
topic |
Cocos nucifera; water availability; seasonal variation; periodicity Cocos nucifera; disponibilidade hídrica; variação sazonal; periodicidade |
description |
The objective of the present work was to study the phenology of two coconut palm cultivars (yellow dwarf, green dwarf) and a hybrid (PB 121). The study was conducted at the Itapirema Research Unit, Goiana, PE, Brazil. Weekly observations were taken from the vegetative and reproductive phases of five plants of each one of the cultivars studied, during the period of January/96 through January/97. Data on the water balance were used to associate phenology and local water availability. The amount of degrees-day varied between 266 degrees-day, during the rainy season, and 350 degrees-day, during the dry season. The predominant quadrant for the emission of the inflorescence as well as for the wind direction was determined. Also the indexes of flower fecundity and fruit production were established. The species studied is perennial. All three cultivars produced around 11 leaves yearly. Dead leaves were verified during the whole experiment period. Flowering occurred during the whole year. The plants produced one inflorescence/month, occasionally two (yellow dwarf, hybrid), during the dry period. The cultivars produced the same number of inflorescences, but not the same in development. The flowering is cornucopia type. Fruits under different development stages were observed in a same specimen and cluster. The wind direction, as well as the quadrant of inflorescence position established were predominantly Southeastern. There were significant differences among the treatments. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-06-01 |
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/6398 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/6398 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/6398/3455 |
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.37, n.6, jun. 2002; 745-752 Pesquisa Agropecuária Brasileira; v.37, n.6, jun. 2002; 745-752 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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