Evaluation of morphological characteristics in Venezuelan maize (Zea mays L.) genotypes under drought stress

Detalhes bibliográficos
Autor(a) principal: Camacho,R.G.
Data de Publicação: 1994
Outros Autores: Caraballo,D.F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161994000300012
Resumo: A greenhouse experiment was carried out to evaluate the responses among 10 maize (Zea mays L.) genotypes under drought stress. Seeds were planted in washed sand in plastic pots. The research was established in a completely random design with ten treatments and three replicate pots. The plants were harvested four weeks after sowning, and leaf area per plant (LA), root volume (RV), longest root length (LRL), plant height (PH), fresh (RFW) and dry weight (ROW) of roots, shoot dry weight (SOW), RDW/SDW ratio, and total dry matter production (TDM) were determined. Significant varietal differences for all characters were found, except for LRL. The data obtained allowed to identify Cargill-163 as a poor genotype at low water supply. Danac-3006, FM-6, Sefloarca-91, Ceniap PB-8, and Tocorón-300 hybrids showed the best behaviour in terms of RDW/SDW ratio and root volume. On the other hand, root dry weight was identified as the best indicator and easiest characteristic to determine the drought-tolerance of maize plant.
id USP-18_04c2d9540689491c0cbe7d49dab78852
oai_identifier_str oai:scielo:S0103-90161994000300012
network_acronym_str USP-18
network_name_str Scientia Agrícola (Online)
repository_id_str
spelling Evaluation of morphological characteristics in Venezuelan maize (Zea mays L.) genotypes under drought stressZea maysleaf arearoot volumeroot lengthplant heightroot weightshoot weighttotal dry matterdrought resistanceA greenhouse experiment was carried out to evaluate the responses among 10 maize (Zea mays L.) genotypes under drought stress. Seeds were planted in washed sand in plastic pots. The research was established in a completely random design with ten treatments and three replicate pots. The plants were harvested four weeks after sowning, and leaf area per plant (LA), root volume (RV), longest root length (LRL), plant height (PH), fresh (RFW) and dry weight (ROW) of roots, shoot dry weight (SOW), RDW/SDW ratio, and total dry matter production (TDM) were determined. Significant varietal differences for all characters were found, except for LRL. The data obtained allowed to identify Cargill-163 as a poor genotype at low water supply. Danac-3006, FM-6, Sefloarca-91, Ceniap PB-8, and Tocorón-300 hybrids showed the best behaviour in terms of RDW/SDW ratio and root volume. On the other hand, root dry weight was identified as the best indicator and easiest characteristic to determine the drought-tolerance of maize plant.Escola Superior de Agricultura "Luiz de Queiroz"1994-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161994000300012Scientia Agricola v.51 n.3 1994reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90161994000300012info:eu-repo/semantics/openAccessCamacho,R.G.Caraballo,D.F.eng2005-07-19T00:00:00Zoai:scielo:S0103-90161994000300012Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2005-07-19T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Evaluation of morphological characteristics in Venezuelan maize (Zea mays L.) genotypes under drought stress
title Evaluation of morphological characteristics in Venezuelan maize (Zea mays L.) genotypes under drought stress
spellingShingle Evaluation of morphological characteristics in Venezuelan maize (Zea mays L.) genotypes under drought stress
Camacho,R.G.
Zea mays
leaf area
root volume
root length
plant height
root weight
shoot weight
total dry matter
drought resistance
title_short Evaluation of morphological characteristics in Venezuelan maize (Zea mays L.) genotypes under drought stress
title_full Evaluation of morphological characteristics in Venezuelan maize (Zea mays L.) genotypes under drought stress
title_fullStr Evaluation of morphological characteristics in Venezuelan maize (Zea mays L.) genotypes under drought stress
title_full_unstemmed Evaluation of morphological characteristics in Venezuelan maize (Zea mays L.) genotypes under drought stress
title_sort Evaluation of morphological characteristics in Venezuelan maize (Zea mays L.) genotypes under drought stress
author Camacho,R.G.
author_facet Camacho,R.G.
Caraballo,D.F.
author_role author
author2 Caraballo,D.F.
author2_role author
dc.contributor.author.fl_str_mv Camacho,R.G.
Caraballo,D.F.
dc.subject.por.fl_str_mv Zea mays
leaf area
root volume
root length
plant height
root weight
shoot weight
total dry matter
drought resistance
topic Zea mays
leaf area
root volume
root length
plant height
root weight
shoot weight
total dry matter
drought resistance
description A greenhouse experiment was carried out to evaluate the responses among 10 maize (Zea mays L.) genotypes under drought stress. Seeds were planted in washed sand in plastic pots. The research was established in a completely random design with ten treatments and three replicate pots. The plants were harvested four weeks after sowning, and leaf area per plant (LA), root volume (RV), longest root length (LRL), plant height (PH), fresh (RFW) and dry weight (ROW) of roots, shoot dry weight (SOW), RDW/SDW ratio, and total dry matter production (TDM) were determined. Significant varietal differences for all characters were found, except for LRL. The data obtained allowed to identify Cargill-163 as a poor genotype at low water supply. Danac-3006, FM-6, Sefloarca-91, Ceniap PB-8, and Tocorón-300 hybrids showed the best behaviour in terms of RDW/SDW ratio and root volume. On the other hand, root dry weight was identified as the best indicator and easiest characteristic to determine the drought-tolerance of maize plant.
publishDate 1994
dc.date.none.fl_str_mv 1994-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161994000300012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161994000300012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90161994000300012
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.51 n.3 1994
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
_version_ 1748936454837370880

Registros relacionados