Responses of wheat to low luminosity stress and their relations with genetic breeding

Detalhes bibliográficos
Autor(a) principal: Scheeren, Pedro Luiz
Data de Publicação: 1997
Outros Autores: Carvalho, Fernando Irajá Félix de, 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/4787
Resumo: The work was carried out at the Estação Experimental Agronômica of UFRGS, in Eldorado do Sul, Rio Grande do Sul, Brazil, in 1988. The objective was to investigate the influence of low luminosity stress (60% of incident natural light) on six traits in four wheat (IAS 20-Iassul, IAC 5-Maringá, Trigo BR 34 e PF 84431) genotypes and on their corresponding F2 segregating populations (six combinations). When the treatments with and without low luminosity stress were compared, a differentiated behaviour of the parents, as well as of the F2 segregating populations, was observed for all traits assessed. According to this work, evidences indicate that there are greater possibilities of success in improving the main traits involved in wheat yield components if plant selection is made in an environment that favors phenotypic expression of its genetic potencial, that is, in an environment without stress.
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spelling Responses of wheat to low luminosity stress and their relations with genetic breedingRespostas do trigo à baixa luminosidade e suas implicações com o melhoramento genéticoplant stature; peduncle; tillers; spikelets; grain number; grain weight; Triticum aestivumcaracterísticas agronômicas; sombreamento; estresse; Triticum aestivumThe work was carried out at the Estação Experimental Agronômica of UFRGS, in Eldorado do Sul, Rio Grande do Sul, Brazil, in 1988. The objective was to investigate the influence of low luminosity stress (60% of incident natural light) on six traits in four wheat (IAS 20-Iassul, IAC 5-Maringá, Trigo BR 34 e PF 84431) genotypes and on their corresponding F2 segregating populations (six combinations). When the treatments with and without low luminosity stress were compared, a differentiated behaviour of the parents, as well as of the F2 segregating populations, was observed for all traits assessed. According to this work, evidences indicate that there are greater possibilities of success in improving the main traits involved in wheat yield components if plant selection is made in an environment that favors phenotypic expression of its genetic potencial, that is, in an environment without stress.O trabalho foi conduzido na Estação Experimental Agronômica da UFRGS, em Eldorado do Sul, RS, em 1988. O objetivo foi verificar a influência do estresse causado pela baixa luminosidade (60% da luz natural incidente) sobre seis caracteres em quatro genótipos de trigo (IAS 20-Iassul, IAC 5-Maringá, Trigo BR 34 e PF 84431) e suas respectivas populações segregantes F2 (seis combinações). Foi possível observar que houve comportamento diferenciado dos genitores e das populações segregantes F2, em todos os caracteres avaliados, quando comparados os tratamentos com e sem estresse causado por baixa luminosidade. Há evidências de maior sucesso no progresso dos caracteres que compõem o rendimento de grãos de trigo, se a seleção artificial de plantas for realizada em ambiente favorável, ou seja, em ambiente sem estresse.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraScheeren, Pedro LuizCarvalho, Fernando Irajá Félix deFederizzi, Luiz Carlos1997-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/4787Pesquisa Agropecuaria Brasileira; v.32, n.12, dez. 1997; 1287-1293Pesquisa Agropecuária Brasileira; v.32, n.12, dez. 1997; 1287-12931678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/4787/7256info:eu-repo/semantics/openAccess2015-05-05T17:40:57Zoai:ojs.seer.sct.embrapa.br:article/4787Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2015-05-05T17:40:57Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Responses of wheat to low luminosity stress and their relations with genetic breeding
Respostas do trigo à baixa luminosidade e suas implicações com o melhoramento genético
title Responses of wheat to low luminosity stress and their relations with genetic breeding
spellingShingle Responses of wheat to low luminosity stress and their relations with genetic breeding
Scheeren, Pedro Luiz
plant stature; peduncle; tillers; spikelets; grain number; grain weight; Triticum aestivum
características agronômicas; sombreamento; estresse; Triticum aestivum
title_short Responses of wheat to low luminosity stress and their relations with genetic breeding
title_full Responses of wheat to low luminosity stress and their relations with genetic breeding
title_fullStr Responses of wheat to low luminosity stress and their relations with genetic breeding
title_full_unstemmed Responses of wheat to low luminosity stress and their relations with genetic breeding
title_sort Responses of wheat to low luminosity stress and their relations with genetic breeding
author Scheeren, Pedro Luiz
author_facet Scheeren, Pedro Luiz
Carvalho, Fernando Irajá Félix de
Federizzi, Luiz Carlos
author_role author
author2 Carvalho, Fernando Irajá Félix de
Federizzi, Luiz Carlos
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Scheeren, Pedro Luiz
Carvalho, Fernando Irajá Félix de
Federizzi, Luiz Carlos
dc.subject.por.fl_str_mv plant stature; peduncle; tillers; spikelets; grain number; grain weight; Triticum aestivum
características agronômicas; sombreamento; estresse; Triticum aestivum
topic plant stature; peduncle; tillers; spikelets; grain number; grain weight; Triticum aestivum
características agronômicas; sombreamento; estresse; Triticum aestivum
description The work was carried out at the Estação Experimental Agronômica of UFRGS, in Eldorado do Sul, Rio Grande do Sul, Brazil, in 1988. The objective was to investigate the influence of low luminosity stress (60% of incident natural light) on six traits in four wheat (IAS 20-Iassul, IAC 5-Maringá, Trigo BR 34 e PF 84431) genotypes and on their corresponding F2 segregating populations (six combinations). When the treatments with and without low luminosity stress were compared, a differentiated behaviour of the parents, as well as of the F2 segregating populations, was observed for all traits assessed. According to this work, evidences indicate that there are greater possibilities of success in improving the main traits involved in wheat yield components if plant selection is made in an environment that favors phenotypic expression of its genetic potencial, that is, in an environment without stress.
publishDate 1997
dc.date.none.fl_str_mv 1997-12-01
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/4787
url https://seer.sct.embrapa.br/index.php/pab/article/view/4787
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/4787/7256
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.32, n.12, dez. 1997; 1287-1293
Pesquisa Agropecuária Brasileira; v.32, n.12, dez. 1997; 1287-1293
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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