Responses of wheat to low luminosity stress and their relations with genetic breeding
Autor(a) principal: | |
---|---|
Data de Publicação: | 1997 |
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/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. |
id |
EMBRAPA-4_61f5a08dde5692ca11437a32db310543 |
---|---|
oai_identifier_str |
oai:ojs.seer.sct.embrapa.br:article/4787 |
network_acronym_str |
EMBRAPA-4 |
network_name_str |
Pesquisa Agropecuária Brasileira (Online) |
repository_id_str |
|
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 |
_version_ |
1793416653735723008 |