Agronomic performance of the cowpea under different irrigation depths and row spacing
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista ciência agronômica (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500774 |
Resumo: | ABSTRACT The cowpea is of great socioeconomic importance in the North, Northeast and Mid-West of Brazil, and its irrigated farming has recently been on the increase in these regions. The aim of this study was to evaluate the agronomic performance of the cowpea 'BRS Tumucumaque' for different row spacings and irrigation depths, under the conditions of soil and climate of Teresina, in the State of Piauí. The experiment was carried out from August to November 2014, in a Yellow Argisol at the Experimental Area of Embrapa Meio-Norte in Teresina. The experimental design was of randomised blocks in subdivided lots, with four replications. The treatments consisted of five irrigation depths (40% ETo, 70% ETo, 100% ETo, 130% ETo and 160% ETo) in the main plot, and four spacings between rows (0.36 m, 0.45 m, 0.60 m and 0.90 m) in the sub-lots. Leaf area index, pod length, number of grains per pod, number of pods per plant and grain productivity were evaluated. There was significant interaction (. <0.01) between irrigation depth and row spacing for grain productivity only. There was a significant increasing linear effect (. <0.01) from irrigation depth on pod length, number of pods per plant and number of grains per pod. The larger irrigation depths at the smaller row spacings give the greatest grain productivity. With leaf area index, there was a significant effect from irrigation depth and row spacing for the periods under evaluation. |
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Agronomic performance of the cowpea under different irrigation depths and row spacingVigna unguiculataGrain yieldIrrigation managementPlant densityBRS TumucumaqueABSTRACT The cowpea is of great socioeconomic importance in the North, Northeast and Mid-West of Brazil, and its irrigated farming has recently been on the increase in these regions. The aim of this study was to evaluate the agronomic performance of the cowpea 'BRS Tumucumaque' for different row spacings and irrigation depths, under the conditions of soil and climate of Teresina, in the State of Piauí. The experiment was carried out from August to November 2014, in a Yellow Argisol at the Experimental Area of Embrapa Meio-Norte in Teresina. The experimental design was of randomised blocks in subdivided lots, with four replications. The treatments consisted of five irrigation depths (40% ETo, 70% ETo, 100% ETo, 130% ETo and 160% ETo) in the main plot, and four spacings between rows (0.36 m, 0.45 m, 0.60 m and 0.90 m) in the sub-lots. Leaf area index, pod length, number of grains per pod, number of pods per plant and grain productivity were evaluated. There was significant interaction (. <0.01) between irrigation depth and row spacing for grain productivity only. There was a significant increasing linear effect (. <0.01) from irrigation depth on pod length, number of pods per plant and number of grains per pod. The larger irrigation depths at the smaller row spacings give the greatest grain productivity. With leaf area index, there was a significant effect from irrigation depth and row spacing for the periods under evaluation.Universidade Federal do Ceará2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500774Revista Ciência Agronômica v.48 n.5spe 2017reponame:Revista ciência agronômica (Online)instname:Universidade Federal do Ceará (UFC)instacron:UFC10.5935/1806-6690.20170090info:eu-repo/semantics/openAccessCosta Junior,Manoel de Jesus Nunes daBastos,Edson AlvesCardoso,Milton JoséAndrade Júnior,Aderson Soares deeng2017-10-23T00:00:00Zoai:scielo:S1806-66902017000500774Revistahttp://www.ccarevista.ufc.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||alekdutra@ufc.br|| ccarev@ufc.br1806-66900045-6888opendoar:2017-10-23T00:00Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)false |
dc.title.none.fl_str_mv |
Agronomic performance of the cowpea under different irrigation depths and row spacing |
title |
Agronomic performance of the cowpea under different irrigation depths and row spacing |
spellingShingle |
Agronomic performance of the cowpea under different irrigation depths and row spacing Costa Junior,Manoel de Jesus Nunes da Vigna unguiculata Grain yield Irrigation management Plant density BRS Tumucumaque |
title_short |
Agronomic performance of the cowpea under different irrigation depths and row spacing |
title_full |
Agronomic performance of the cowpea under different irrigation depths and row spacing |
title_fullStr |
Agronomic performance of the cowpea under different irrigation depths and row spacing |
title_full_unstemmed |
Agronomic performance of the cowpea under different irrigation depths and row spacing |
title_sort |
Agronomic performance of the cowpea under different irrigation depths and row spacing |
author |
Costa Junior,Manoel de Jesus Nunes da |
author_facet |
Costa Junior,Manoel de Jesus Nunes da Bastos,Edson Alves Cardoso,Milton José Andrade Júnior,Aderson Soares de |
author_role |
author |
author2 |
Bastos,Edson Alves Cardoso,Milton José Andrade Júnior,Aderson Soares de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Costa Junior,Manoel de Jesus Nunes da Bastos,Edson Alves Cardoso,Milton José Andrade Júnior,Aderson Soares de |
dc.subject.por.fl_str_mv |
Vigna unguiculata Grain yield Irrigation management Plant density BRS Tumucumaque |
topic |
Vigna unguiculata Grain yield Irrigation management Plant density BRS Tumucumaque |
description |
ABSTRACT The cowpea is of great socioeconomic importance in the North, Northeast and Mid-West of Brazil, and its irrigated farming has recently been on the increase in these regions. The aim of this study was to evaluate the agronomic performance of the cowpea 'BRS Tumucumaque' for different row spacings and irrigation depths, under the conditions of soil and climate of Teresina, in the State of Piauí. The experiment was carried out from August to November 2014, in a Yellow Argisol at the Experimental Area of Embrapa Meio-Norte in Teresina. The experimental design was of randomised blocks in subdivided lots, with four replications. The treatments consisted of five irrigation depths (40% ETo, 70% ETo, 100% ETo, 130% ETo and 160% ETo) in the main plot, and four spacings between rows (0.36 m, 0.45 m, 0.60 m and 0.90 m) in the sub-lots. Leaf area index, pod length, number of grains per pod, number of pods per plant and grain productivity were evaluated. There was significant interaction (. <0.01) between irrigation depth and row spacing for grain productivity only. There was a significant increasing linear effect (. <0.01) from irrigation depth on pod length, number of pods per plant and number of grains per pod. The larger irrigation depths at the smaller row spacings give the greatest grain productivity. With leaf area index, there was a significant effect from irrigation depth and row spacing for the periods under evaluation. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 |
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=S1806-66902017000500774 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500774 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/1806-6690.20170090 |
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 do Ceará |
publisher.none.fl_str_mv |
Universidade Federal do Ceará |
dc.source.none.fl_str_mv |
Revista Ciência Agronômica v.48 n.5spe 2017 reponame:Revista ciência agronômica (Online) instname:Universidade Federal do Ceará (UFC) instacron:UFC |
instname_str |
Universidade Federal do Ceará (UFC) |
instacron_str |
UFC |
institution |
UFC |
reponame_str |
Revista ciência agronômica (Online) |
collection |
Revista ciência agronômica (Online) |
repository.name.fl_str_mv |
Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC) |
repository.mail.fl_str_mv |
||alekdutra@ufc.br|| ccarev@ufc.br |
_version_ |
1750297488937451520 |