Agronomic aspects of soybean plants subjected to deficit irrigation

ABSTRACT This study aimed to evaluate the behavior of soybean plants subjected to irrigation management with controlled water deficits in different phenological stages. The research was conducted in an experimental area of the Federal University of Tocantins (UFT), in Palmas-TO, Brazil. The experime...

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Main Authors: Antônia C. Nunes, Francisco M. L. Bezerra, Roberta A. e Silva, José L. C. da Silva Júnior, Flávia B. Gonçalves, Geovana A. Santos
Format: Article
Language:English
Published: Universidade Federal de Campina Grande
Series:Revista Brasileira de Engenharia Agrícola e Ambiental
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000700654&lng=en&tlng=en
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author Antônia C. Nunes
Francisco M. L. Bezerra
Roberta A. e Silva
José L. C. da Silva Júnior
Flávia B. Gonçalves
Geovana A. Santos
author_facet Antônia C. Nunes
Francisco M. L. Bezerra
Roberta A. e Silva
José L. C. da Silva Júnior
Flávia B. Gonçalves
Geovana A. Santos
author_sort Antônia C. Nunes
collection DOAJ
description ABSTRACT This study aimed to evaluate the behavior of soybean plants subjected to irrigation management with controlled water deficits in different phenological stages. The research was conducted in an experimental area of the Federal University of Tocantins (UFT), in Palmas-TO, Brazil. The experimental design was randomized blocks with four replicates, and treatments arranged in a split-plot scheme. The plots consisted of irrigation levels that induced plants to water deficit in the vegetative stage, reproductive stage and throughout the entire cycle, based on potential crop evapotranspiration (ETpc). The subplots corresponded to two soybean cultivars (M9144RR and TMG1288RR). The following agronomic variables were evaluated: days until flowering, days until maturation, plant height, first pod height, number of pods per plant, stem diameter, leaf area and yield. Irrigation management with moderate water deficit, 50% of ETpc, in the vegetative stage, promoted the best agronomic characteristics and contributed to increase the yield of the evaluated soybean cultivars, especially M9144RR.
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publisher Universidade Federal de Campina Grande
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series Revista Brasileira de Engenharia Agrícola e Ambiental
spelling doaj-art-aa4c4dbf9c7f4b769bdaa94dd09c555d2025-08-20T02:25:50ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-192920765465910.1590/1807-1929/agriambi.v20n7p654-659S1415-43662016000700654Agronomic aspects of soybean plants subjected to deficit irrigationAntônia C. NunesFrancisco M. L. BezerraRoberta A. e SilvaJosé L. C. da Silva JúniorFlávia B. GonçalvesGeovana A. SantosABSTRACT This study aimed to evaluate the behavior of soybean plants subjected to irrigation management with controlled water deficits in different phenological stages. The research was conducted in an experimental area of the Federal University of Tocantins (UFT), in Palmas-TO, Brazil. The experimental design was randomized blocks with four replicates, and treatments arranged in a split-plot scheme. The plots consisted of irrigation levels that induced plants to water deficit in the vegetative stage, reproductive stage and throughout the entire cycle, based on potential crop evapotranspiration (ETpc). The subplots corresponded to two soybean cultivars (M9144RR and TMG1288RR). The following agronomic variables were evaluated: days until flowering, days until maturation, plant height, first pod height, number of pods per plant, stem diameter, leaf area and yield. Irrigation management with moderate water deficit, 50% of ETpc, in the vegetative stage, promoted the best agronomic characteristics and contributed to increase the yield of the evaluated soybean cultivars, especially M9144RR.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000700654&lng=en&tlng=enirrigation managementyieldGlycine max (L.) Merril
spellingShingle Antônia C. Nunes
Francisco M. L. Bezerra
Roberta A. e Silva
José L. C. da Silva Júnior
Flávia B. Gonçalves
Geovana A. Santos
Agronomic aspects of soybean plants subjected to deficit irrigation
Revista Brasileira de Engenharia Agrícola e Ambiental
irrigation management
yield
Glycine max (L.) Merril
title Agronomic aspects of soybean plants subjected to deficit irrigation
title_full Agronomic aspects of soybean plants subjected to deficit irrigation
title_fullStr Agronomic aspects of soybean plants subjected to deficit irrigation
title_full_unstemmed Agronomic aspects of soybean plants subjected to deficit irrigation
title_short Agronomic aspects of soybean plants subjected to deficit irrigation
title_sort agronomic aspects of soybean plants subjected to deficit irrigation
topic irrigation management
yield
Glycine max (L.) Merril
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000700654&lng=en&tlng=en
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