Wheat responses to stresses caused by low light intensity and water excess in the soil. Part II - Field Testing

Detalhes bibliográficos
Autor(a) principal: Scheeren, Pedro Luiz
Data de Publicação: 1995
Outros Autores: de Carvalho, Fernando Irajá Félix, Federizzi, Luiz Carlos
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/4345
Resumo: The experiment was carried out in the field at the Agronomic Experimental Station of the Federal University of Rio Grande do Sul, in Brazil. The objective of this work was to assess the effect of stresses caused by water excess in the soil and by light reduction on 12 wheat (Triticum aestivum L.) genotypes. It was observed that the stress caused by shading, with 40% light reduction, caused significant modifications in agronomically important characters, like plant stature, number of fertile tillers per plant, peduncle length, number of fertile spikelets per spike, maximum number of grains per spikelet, plant weight and grain weight per plant; moreover, it increased the number of sterile spikelets per spike. The reductions caused by water excess in the soil were less significant to wheat as compared to the ones caused by shading, mainly as a result of environment conditions over cropping period.
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spelling Wheat responses to stresses caused by low light intensity and water excess in the soil. Part II - Field TestingRespostas do trigo aos estresses causados por baixa luminosidade e excesso de água no solo. Parte II - Teste no campoTriticum aestivum; plant stature; fertile tillers; number of grains per spikelet; sterile spikelets; shading; genotypescaracterísticas agronômicas; genótipos de trigo; Triticum aestivum; sombreamentoThe experiment was carried out in the field at the Agronomic Experimental Station of the Federal University of Rio Grande do Sul, in Brazil. The objective of this work was to assess the effect of stresses caused by water excess in the soil and by light reduction on 12 wheat (Triticum aestivum L.) genotypes. It was observed that the stress caused by shading, with 40% light reduction, caused significant modifications in agronomically important characters, like plant stature, number of fertile tillers per plant, peduncle length, number of fertile spikelets per spike, maximum number of grains per spikelet, plant weight and grain weight per plant; moreover, it increased the number of sterile spikelets per spike. The reductions caused by water excess in the soil were less significant to wheat as compared to the ones caused by shading, mainly as a result of environment conditions over cropping period.O experimento foi feito no campo, na Estação Experimental Agronômica da UFRGS, em Eldorado do Sul, RS, no ano de 1987. O objetivo do trabalho foi avaliar o efeito dos estresses causados por excesso de água no solo e por redução de luz sobre 12 genótipos de trigo (Triticum aestivum L.). Foi observado que o estresse causado por sombreamento, com 40% de redução da luminosidade, causou significativa modificação em caracteres de importância agronômica, como estatura da planta, número de afilhos férteis por planta, comprimento do pedúnculo, número de espiguetas férteis por espiga, número máximo de grãos por espigueta, peso da planta, e peso de grãos por planta; além disso, proporcionou incremento do número de espiguetas estéreis por espiga. As reduções causadas por excesso de água no solo foram menos significativas para o trigo do que as causadas pelo sombreamento, em função, principalmente, das condições de ambiente ocorridas durante o período de cultivo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraScheeren, Pedro Luizde Carvalho, Fernando Irajá FélixFederizzi, Luiz Carlos1995-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/4345Pesquisa Agropecuaria Brasileira; v.30, n.5, maio 1995; 605-619Pesquisa Agropecuária Brasileira; v.30, n.5, maio 1995; 605-6191678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/4345/1631info:eu-repo/semantics/openAccess2010-04-05T19:40:52Zoai:ojs.seer.sct.embrapa.br:article/4345Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-04-05T19:40:52Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Wheat responses to stresses caused by low light intensity and water excess in the soil. Part II - Field Testing
Respostas do trigo aos estresses causados por baixa luminosidade e excesso de água no solo. Parte II - Teste no campo
title Wheat responses to stresses caused by low light intensity and water excess in the soil. Part II - Field Testing
spellingShingle Wheat responses to stresses caused by low light intensity and water excess in the soil. Part II - Field Testing
Scheeren, Pedro Luiz
Triticum aestivum; plant stature; fertile tillers; number of grains per spikelet; sterile spikelets; shading; genotypes
características agronômicas; genótipos de trigo; Triticum aestivum; sombreamento
title_short Wheat responses to stresses caused by low light intensity and water excess in the soil. Part II - Field Testing
title_full Wheat responses to stresses caused by low light intensity and water excess in the soil. Part II - Field Testing
title_fullStr Wheat responses to stresses caused by low light intensity and water excess in the soil. Part II - Field Testing
title_full_unstemmed Wheat responses to stresses caused by low light intensity and water excess in the soil. Part II - Field Testing
title_sort Wheat responses to stresses caused by low light intensity and water excess in the soil. Part II - Field Testing
author Scheeren, Pedro Luiz
author_facet Scheeren, Pedro Luiz
de Carvalho, Fernando Irajá Félix
Federizzi, Luiz Carlos
author_role author
author2 de Carvalho, Fernando Irajá Félix
Federizzi, Luiz Carlos
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Scheeren, Pedro Luiz
de Carvalho, Fernando Irajá Félix
Federizzi, Luiz Carlos
dc.subject.por.fl_str_mv Triticum aestivum; plant stature; fertile tillers; number of grains per spikelet; sterile spikelets; shading; genotypes
características agronômicas; genótipos de trigo; Triticum aestivum; sombreamento
topic Triticum aestivum; plant stature; fertile tillers; number of grains per spikelet; sterile spikelets; shading; genotypes
características agronômicas; genótipos de trigo; Triticum aestivum; sombreamento
description The experiment was carried out in the field at the Agronomic Experimental Station of the Federal University of Rio Grande do Sul, in Brazil. The objective of this work was to assess the effect of stresses caused by water excess in the soil and by light reduction on 12 wheat (Triticum aestivum L.) genotypes. It was observed that the stress caused by shading, with 40% light reduction, caused significant modifications in agronomically important characters, like plant stature, number of fertile tillers per plant, peduncle length, number of fertile spikelets per spike, maximum number of grains per spikelet, plant weight and grain weight per plant; moreover, it increased the number of sterile spikelets per spike. The reductions caused by water excess in the soil were less significant to wheat as compared to the ones caused by shading, mainly as a result of environment conditions over cropping period.
publishDate 1995
dc.date.none.fl_str_mv 1995-05-01
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/4345
url https://seer.sct.embrapa.br/index.php/pab/article/view/4345
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/4345/1631
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.30, n.5, maio 1995; 605-619
Pesquisa Agropecuária Brasileira; v.30, n.5, maio 1995; 605-619
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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