Morpho-physiological bases for productivity differences between paddy rice production regions in Santa Catarina

Detalhes bibliográficos
Autor(a) principal: Sangoi, Luís
Data de Publicação: 2020
Outros Autores: Schiocchet, Moacir Antonio
Tipo de documento: Artigo
Idioma: por
Título da fonte: Agropecuária Catarinense (Online)
Texto Completo: https://publicacoes.epagri.sc.gov.br/rac/article/view/576
Resumo: This work was carried out aiming to identity morphological and physiological bases that help to explain grain yielddifferences between two paddy rice production regions in Santa Catarina State (SC). Two field experiments were set, in thecities of Itajaí and Pouso Redondo, SC, using the water-seed production system. Five genotypes were assessed at each place.Main stem leaf area, disease incidence, flag leaf chlorophyll content, grain yield and its components were measured. The fivegenotypes average productivity of grains was 11.4 t ha-1 in Pouso Redondo and 9.7 t ha-1 in Itajaí. The number of grains perpanicle was the yield component that better explained productivity differences between experimental sites. The larger mainstem leaf area, the higher flag leaf chlorophyll content and the lower disease incidence were morpho-physiological traitsthat contributed to the higher productivities in Pouso Redondo. The greater solar radiation availability, the lower values ofmaximum air temperature and the smaller air relative humidity content are environmental factors that probably contributedto the higher grain yield of paddy rice in Pouso Redondo.
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spelling Morpho-physiological bases for productivity differences between paddy rice production regions in Santa CatarinaBases morfofisiológicas para diferenças de produtividade entre regiões produtoras de arroz irrigado em Santa CatarinaOriza satvarendimento de grãosmorfologiafisiologiaThis work was carried out aiming to identity morphological and physiological bases that help to explain grain yielddifferences between two paddy rice production regions in Santa Catarina State (SC). Two field experiments were set, in thecities of Itajaí and Pouso Redondo, SC, using the water-seed production system. Five genotypes were assessed at each place.Main stem leaf area, disease incidence, flag leaf chlorophyll content, grain yield and its components were measured. The fivegenotypes average productivity of grains was 11.4 t ha-1 in Pouso Redondo and 9.7 t ha-1 in Itajaí. The number of grains perpanicle was the yield component that better explained productivity differences between experimental sites. The larger mainstem leaf area, the higher flag leaf chlorophyll content and the lower disease incidence were morpho-physiological traitsthat contributed to the higher productivities in Pouso Redondo. The greater solar radiation availability, the lower values ofmaximum air temperature and the smaller air relative humidity content are environmental factors that probably contributedto the higher grain yield of paddy rice in Pouso Redondo.Este trabalho foi conduzido objetvando identfcar as bases morfológicas e fsiológicas para as diferenças de produtvidade registradas em duas regiões produtoras de arroz irrigado do estado de Santa Catarina (SC). Os experimentos foram conduzidos em campo nos municípios de Itajaí e Pouso Redondo, SC, utlizando o sistema de cultvo pré-germinado. Em cada local foram testados cinco genótpos de arroz irrigado. Avaliaram-se os caracteres área foliar do colmo principal, incidência de doenças, teor de clorofla da folha bandeira, rendimento de grãos e seus componentes. A produtividade média dos cinco genótpos foi de 11,4t.ha-1 em Pouso Redondo e de 9,7t.ha-1 em Itajaí. O número de grãos por panícula foi o componente do rendimento que melhor explicou as diferenças de produtvidade registradas entre locais. A maior área foliar do colmo principal, o maior teor de clorofila da folha bandeira e a menor incidência de doenças foram característcas morfofsiológicas que contribuíram para a maior produtvidade. A maior disponibilidade de radiação, os menores valores da temperaturaatmosférica máxima e a menor umidade relatva do ar são característcas ambientais que provavelmente contribuem para o maior rendimento de grãos do arroz irrigado em Pouso Redondo. Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2020-04-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/576Agropecuária Catarinense Journal; Vol. 27 No. 2 (2014); 76-81Agropecuária Catarinense; v. 27 n. 2 (2014); 76-812525-60760103-0779reponame:Agropecuária Catarinense (Online)instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)instacron:EPAGRIporhttps://publicacoes.epagri.sc.gov.br/rac/article/view/576/480Copyright (c) 2020 Revista Agropecuária Catarinenseinfo:eu-repo/semantics/openAccessSangoi, LuísSchiocchet, Moacir Antonio2021-02-17T13:35:13Zoai:ojs.publicacoes.epagri.sc.gov.br:article/576Revistahttps://publicacoes.epagri.sc.gov.br/RAC/indexPUBhttps://publicacoes.epagri.sc.gov.br/index.php/RAC/oaieditoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br2525-60760103-0779opendoar:2021-02-17T13:35:13Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false
dc.title.none.fl_str_mv Morpho-physiological bases for productivity differences between paddy rice production regions in Santa Catarina
Bases morfofisiológicas para diferenças de produtividade entre regiões produtoras de arroz irrigado em Santa Catarina
title Morpho-physiological bases for productivity differences between paddy rice production regions in Santa Catarina
spellingShingle Morpho-physiological bases for productivity differences between paddy rice production regions in Santa Catarina
Sangoi, Luís
Oriza satva
rendimento de grãos
morfologia
fisiologia
title_short Morpho-physiological bases for productivity differences between paddy rice production regions in Santa Catarina
title_full Morpho-physiological bases for productivity differences between paddy rice production regions in Santa Catarina
title_fullStr Morpho-physiological bases for productivity differences between paddy rice production regions in Santa Catarina
title_full_unstemmed Morpho-physiological bases for productivity differences between paddy rice production regions in Santa Catarina
title_sort Morpho-physiological bases for productivity differences between paddy rice production regions in Santa Catarina
author Sangoi, Luís
author_facet Sangoi, Luís
Schiocchet, Moacir Antonio
author_role author
author2 Schiocchet, Moacir Antonio
author2_role author
dc.contributor.author.fl_str_mv Sangoi, Luís
Schiocchet, Moacir Antonio
dc.subject.por.fl_str_mv Oriza satva
rendimento de grãos
morfologia
fisiologia
topic Oriza satva
rendimento de grãos
morfologia
fisiologia
description This work was carried out aiming to identity morphological and physiological bases that help to explain grain yielddifferences between two paddy rice production regions in Santa Catarina State (SC). Two field experiments were set, in thecities of Itajaí and Pouso Redondo, SC, using the water-seed production system. Five genotypes were assessed at each place.Main stem leaf area, disease incidence, flag leaf chlorophyll content, grain yield and its components were measured. The fivegenotypes average productivity of grains was 11.4 t ha-1 in Pouso Redondo and 9.7 t ha-1 in Itajaí. The number of grains perpanicle was the yield component that better explained productivity differences between experimental sites. The larger mainstem leaf area, the higher flag leaf chlorophyll content and the lower disease incidence were morpho-physiological traitsthat contributed to the higher productivities in Pouso Redondo. The greater solar radiation availability, the lower values ofmaximum air temperature and the smaller air relative humidity content are environmental factors that probably contributedto the higher grain yield of paddy rice in Pouso Redondo.
publishDate 2020
dc.date.none.fl_str_mv 2020-04-28
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://publicacoes.epagri.sc.gov.br/rac/article/view/576
url https://publicacoes.epagri.sc.gov.br/rac/article/view/576
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/576/480
dc.rights.driver.fl_str_mv Copyright (c) 2020 Revista Agropecuária Catarinense
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Revista Agropecuária Catarinense
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
dc.source.none.fl_str_mv Agropecuária Catarinense Journal; Vol. 27 No. 2 (2014); 76-81
Agropecuária Catarinense; v. 27 n. 2 (2014); 76-81
2525-6076
0103-0779
reponame:Agropecuária Catarinense (Online)
instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron:EPAGRI
instname_str Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron_str EPAGRI
institution EPAGRI
reponame_str Agropecuária Catarinense (Online)
collection Agropecuária Catarinense (Online)
repository.name.fl_str_mv Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
repository.mail.fl_str_mv editoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br
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