Genetic variability and linear relationships between plant architecture and maize grain yield
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Rural |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020001000201 |
Resumo: | ABSTRACT: The objectives of this study were to analyze whether there is genetic variability and assess the linear relationships between plant architecture and maize grain yield. Three experiments were carried out in a complete randomized block design. A group of 51 cultivars was assessed in relation to 22 traits: number of leaves, plant height, ear height, leaf angle, leaf length, leaf width, leaf area, and grain yield. Individual analyses of variance were performed, the assumptions of normality of errors and homogeneity of residual variances were tested, and means were grouped by the Scott-Knott test. The phenotypic correlation matrix was constructed using the 22 traits of the 51 cultivars. Results showed that there is genetic variability among cultivars for number of leaves, plant height, ear height, leaf angle, leaf length, leaf width, leaf area, and grain yield. Leaves close to the ear have smaller leaf angle and larger length, width, and area of the leaves. Leaf angle gradually increases towards the lower and upper ends of the plant. Length, width, and area gradually decreases in leaves towards the lower and upper ends of the plant. Cultivars with higher number of leaves and larger leaf area are associated with higher grain yield. |
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Ciência rural (Online) |
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Genetic variability and linear relationships between plant architecture and maize grain yieldZea mays L.number of leavesleaf angleleaf area.ABSTRACT: The objectives of this study were to analyze whether there is genetic variability and assess the linear relationships between plant architecture and maize grain yield. Three experiments were carried out in a complete randomized block design. A group of 51 cultivars was assessed in relation to 22 traits: number of leaves, plant height, ear height, leaf angle, leaf length, leaf width, leaf area, and grain yield. Individual analyses of variance were performed, the assumptions of normality of errors and homogeneity of residual variances were tested, and means were grouped by the Scott-Knott test. The phenotypic correlation matrix was constructed using the 22 traits of the 51 cultivars. Results showed that there is genetic variability among cultivars for number of leaves, plant height, ear height, leaf angle, leaf length, leaf width, leaf area, and grain yield. Leaves close to the ear have smaller leaf angle and larger length, width, and area of the leaves. Leaf angle gradually increases towards the lower and upper ends of the plant. Length, width, and area gradually decreases in leaves towards the lower and upper ends of the plant. Cultivars with higher number of leaves and larger leaf area are associated with higher grain yield.Universidade Federal de Santa Maria2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020001000201Ciência Rural v.50 n.10 2020reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20190661info:eu-repo/semantics/openAccessCargnelutti Filho,AlbertoSilveira,Daniela LixinskiAlves,Bruna MendonçaCarini,FernandaBandeira,Cirineu TolfoPezzini,Rafael Vieiraeng2020-09-09T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Genetic variability and linear relationships between plant architecture and maize grain yield |
title |
Genetic variability and linear relationships between plant architecture and maize grain yield |
spellingShingle |
Genetic variability and linear relationships between plant architecture and maize grain yield Cargnelutti Filho,Alberto Zea mays L. number of leaves leaf angle leaf area. |
title_short |
Genetic variability and linear relationships between plant architecture and maize grain yield |
title_full |
Genetic variability and linear relationships between plant architecture and maize grain yield |
title_fullStr |
Genetic variability and linear relationships between plant architecture and maize grain yield |
title_full_unstemmed |
Genetic variability and linear relationships between plant architecture and maize grain yield |
title_sort |
Genetic variability and linear relationships between plant architecture and maize grain yield |
author |
Cargnelutti Filho,Alberto |
author_facet |
Cargnelutti Filho,Alberto Silveira,Daniela Lixinski Alves,Bruna Mendonça Carini,Fernanda Bandeira,Cirineu Tolfo Pezzini,Rafael Vieira |
author_role |
author |
author2 |
Silveira,Daniela Lixinski Alves,Bruna Mendonça Carini,Fernanda Bandeira,Cirineu Tolfo Pezzini,Rafael Vieira |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Cargnelutti Filho,Alberto Silveira,Daniela Lixinski Alves,Bruna Mendonça Carini,Fernanda Bandeira,Cirineu Tolfo Pezzini,Rafael Vieira |
dc.subject.por.fl_str_mv |
Zea mays L. number of leaves leaf angle leaf area. |
topic |
Zea mays L. number of leaves leaf angle leaf area. |
description |
ABSTRACT: The objectives of this study were to analyze whether there is genetic variability and assess the linear relationships between plant architecture and maize grain yield. Three experiments were carried out in a complete randomized block design. A group of 51 cultivars was assessed in relation to 22 traits: number of leaves, plant height, ear height, leaf angle, leaf length, leaf width, leaf area, and grain yield. Individual analyses of variance were performed, the assumptions of normality of errors and homogeneity of residual variances were tested, and means were grouped by the Scott-Knott test. The phenotypic correlation matrix was constructed using the 22 traits of the 51 cultivars. Results showed that there is genetic variability among cultivars for number of leaves, plant height, ear height, leaf angle, leaf length, leaf width, leaf area, and grain yield. Leaves close to the ear have smaller leaf angle and larger length, width, and area of the leaves. Leaf angle gradually increases towards the lower and upper ends of the plant. Length, width, and area gradually decreases in leaves towards the lower and upper ends of the plant. Cultivars with higher number of leaves and larger leaf area are associated with higher grain yield. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 |
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=S0103-84782020001000201 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020001000201 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-8478cr20190661 |
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 |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.50 n.10 2020 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140555161403392 |