Grain yield and plant morphology of cowpea genotypes with different planting densities under irrigated and rainfed conditions

Detalhes bibliográficos
Autor(a) principal: Santos, Carlos Antonio Fernandes
Data de Publicação: 2000
Outros Autores: Araujo, Francisco Pinheiro de
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/5984
Resumo: The objective of this study was to evaluate the effect of planting densities on yield and on plant architecture of different genotypes of cowpea (Vigna unguiculata L. Walp.) when cultivated under irrigated and rainfed conditions. The genotypes IT 86D-472, Epace 10 and TE 90-180-27F, semi-upright, semi-spreading and spreading growth habits, respectively, were evaluated in five different populations, in a randomized block design, with three replications, at Petrolina, PE, Brazil. The analysis of variance showed significance for genotypes and no significance for genotype x plant population interaction for all characters. The lack of significance in grain production occurred because the genotype Epace 10 showed superiority in all five populations. The genotypes showed non-significant tendency to decrease the length and number of nodes in main branches, to increase the height of first pods from the soil and to decrease the number of secondary branches (P  < 0.05), when cultivated in higher populations in both environments. IT 86D-472 showed significance to populations and the highest grain yields were obtained with 207,328 and 203,051 plants/ha under irrigated and rainfed conditions, respectively. Epace 10 and TE 90-180-27F did not show significance when cultivated under different populations, in both environments.
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spelling Grain yield and plant morphology of cowpea genotypes with different planting densities under irrigated and rainfed conditionsProdutividade e morfologia de genótipos de caupi em diferentes densidades populacionais nos sistemas irrigado e de sequeiroVigna unguiculata; plant establishment; stand characteristics; crop yieldVigna unguiculata; distribuição das plantas; características da população; rendimento de culturasThe objective of this study was to evaluate the effect of planting densities on yield and on plant architecture of different genotypes of cowpea (Vigna unguiculata L. Walp.) when cultivated under irrigated and rainfed conditions. The genotypes IT 86D-472, Epace 10 and TE 90-180-27F, semi-upright, semi-spreading and spreading growth habits, respectively, were evaluated in five different populations, in a randomized block design, with three replications, at Petrolina, PE, Brazil. The analysis of variance showed significance for genotypes and no significance for genotype x plant population interaction for all characters. The lack of significance in grain production occurred because the genotype Epace 10 showed superiority in all five populations. The genotypes showed non-significant tendency to decrease the length and number of nodes in main branches, to increase the height of first pods from the soil and to decrease the number of secondary branches (P  < 0.05), when cultivated in higher populations in both environments. IT 86D-472 showed significance to populations and the highest grain yields were obtained with 207,328 and 203,051 plants/ha under irrigated and rainfed conditions, respectively. Epace 10 and TE 90-180-27F did not show significance when cultivated under different populations, in both environments.Este trabalho teve como objetivo avaliar o efeito da densidade populacional na produtividade e no comportamento de alguns caracteres de morfologia de planta de três genótipos de caupi (Vigna unguiculata L. Walp) de diferentes portes, tanto em regime irrigado como de sequeiro. Foram avaliados os genótipos IT 86D-472, de porte semi-ereto, Epace 10, de porte semi-ramador, e TE 90-180-27F, de porte ramador, em cinco diferentes populações, em delineamento de blocos ao acaso, com três repetições. A análise do fatorial apresentou significância em relação a genótipos e interação não-significativa em relação aos caracteres avaliados; quanto à produção de grãos, houve ausência de significância, provocada pela constante superioridade do genótipo Epace 10 nas diferentes populações. Os genótipos apresentaram tendência não-significativa em reduzir o comprimento e o número de nós no ramo principal e maior altura da vagem em relação ao nível do solo, bem como um menor número de ramos secundários (P < 0,05), quando cultivados em maiores populações, nos dois ambientes. O genótipo IT 86D-472 respondeu significativamente às diferentes populações, e as maiores produções de grãos foram obtidas com 207.328 e 203.051 plantas/ha em regimes irrigado e de sequeiro, respectivamente. Epace 10 e TE 90-180-27F não responderam significativamente às diferentes populações, tanto em regime de sequeiro como no irrigado.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSantos, Carlos Antonio FernandesAraujo, Francisco Pinheiro de2000-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5984Pesquisa Agropecuaria Brasileira; v.35, n.10, out. 2000; 1977-1984Pesquisa Agropecuária Brasileira; v.35, n.10, out. 2000; 1977-19841678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/5984/3088info:eu-repo/semantics/openAccess2014-08-19T19:45:54Zoai:ojs.seer.sct.embrapa.br:article/5984Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-08-19T19:45:54Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Grain yield and plant morphology of cowpea genotypes with different planting densities under irrigated and rainfed conditions
Produtividade e morfologia de genótipos de caupi em diferentes densidades populacionais nos sistemas irrigado e de sequeiro
title Grain yield and plant morphology of cowpea genotypes with different planting densities under irrigated and rainfed conditions
spellingShingle Grain yield and plant morphology of cowpea genotypes with different planting densities under irrigated and rainfed conditions
Santos, Carlos Antonio Fernandes
Vigna unguiculata; plant establishment; stand characteristics; crop yield
Vigna unguiculata; distribuição das plantas; características da população; rendimento de culturas
title_short Grain yield and plant morphology of cowpea genotypes with different planting densities under irrigated and rainfed conditions
title_full Grain yield and plant morphology of cowpea genotypes with different planting densities under irrigated and rainfed conditions
title_fullStr Grain yield and plant morphology of cowpea genotypes with different planting densities under irrigated and rainfed conditions
title_full_unstemmed Grain yield and plant morphology of cowpea genotypes with different planting densities under irrigated and rainfed conditions
title_sort Grain yield and plant morphology of cowpea genotypes with different planting densities under irrigated and rainfed conditions
author Santos, Carlos Antonio Fernandes
author_facet Santos, Carlos Antonio Fernandes
Araujo, Francisco Pinheiro de
author_role author
author2 Araujo, Francisco Pinheiro de
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Santos, Carlos Antonio Fernandes
Araujo, Francisco Pinheiro de
dc.subject.por.fl_str_mv Vigna unguiculata; plant establishment; stand characteristics; crop yield
Vigna unguiculata; distribuição das plantas; características da população; rendimento de culturas
topic Vigna unguiculata; plant establishment; stand characteristics; crop yield
Vigna unguiculata; distribuição das plantas; características da população; rendimento de culturas
description The objective of this study was to evaluate the effect of planting densities on yield and on plant architecture of different genotypes of cowpea (Vigna unguiculata L. Walp.) when cultivated under irrigated and rainfed conditions. The genotypes IT 86D-472, Epace 10 and TE 90-180-27F, semi-upright, semi-spreading and spreading growth habits, respectively, were evaluated in five different populations, in a randomized block design, with three replications, at Petrolina, PE, Brazil. The analysis of variance showed significance for genotypes and no significance for genotype x plant population interaction for all characters. The lack of significance in grain production occurred because the genotype Epace 10 showed superiority in all five populations. The genotypes showed non-significant tendency to decrease the length and number of nodes in main branches, to increase the height of first pods from the soil and to decrease the number of secondary branches (P  < 0.05), when cultivated in higher populations in both environments. IT 86D-472 showed significance to populations and the highest grain yields were obtained with 207,328 and 203,051 plants/ha under irrigated and rainfed conditions, respectively. Epace 10 and TE 90-180-27F did not show significance when cultivated under different populations, in both environments.
publishDate 2000
dc.date.none.fl_str_mv 2000-10-01
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/5984
url https://seer.sct.embrapa.br/index.php/pab/article/view/5984
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/5984/3088
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.35, n.10, out. 2000; 1977-1984
Pesquisa Agropecuária Brasileira; v.35, n.10, out. 2000; 1977-1984
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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