Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000400005 http://repositorio.ufla.br/jspui/handle/1/7426 |
Resumo: | Effects of different levels of water deficit applied during rapeseed crop development were assessed in a trial with metallic pots in greenhouse at the Department of Agricultural Engineering of Kassel University, Witzenhausen, Germany. A randomized block design was used with one cultivar (Ability Summer Rape) and three levels of water deficit (0, 30, and 60% of evapotranspiration) in three treatments and 20 replicates. Irrigation management was carried out through daily water balance, where ET = I - D; ET: evapotranspiration; I: irrigation; and D: drainage. The following evaluations were carried out weekly: stem diameter (mm); plant height (cm); number of leaves; number of branches and number of pods. At the end of the experiment, assessed total green matter (g plant-1), total dry matter (g plant-1), grain yield (g plant-1), grain protein content (%) and grain oil content (%) were also assessed. Data were submitted to variance analysis and the effect of the treatments was assessed by regression analysis. Results showed significant differences between the treatments in all analysed variables except for plant height and grain protein content, by test F at 5% probability. Factor of response ky, indicator of crop sensitivity to water deficit, was lower than one for all assessed variables. Grain yield showed the highest sensitivity to water deficit. |
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Effect of different levels of water deficit on rapeseed (Brassica napus L.) cropEfeito de diferentes níveis de déficit hídrico na cultura da canolaWater managementIrrigationWater deficitManejo de águaIrrigaçãoDéficit hídricoEffects of different levels of water deficit applied during rapeseed crop development were assessed in a trial with metallic pots in greenhouse at the Department of Agricultural Engineering of Kassel University, Witzenhausen, Germany. A randomized block design was used with one cultivar (Ability Summer Rape) and three levels of water deficit (0, 30, and 60% of evapotranspiration) in three treatments and 20 replicates. Irrigation management was carried out through daily water balance, where ET = I - D; ET: evapotranspiration; I: irrigation; and D: drainage. The following evaluations were carried out weekly: stem diameter (mm); plant height (cm); number of leaves; number of branches and number of pods. At the end of the experiment, assessed total green matter (g plant-1), total dry matter (g plant-1), grain yield (g plant-1), grain protein content (%) and grain oil content (%) were also assessed. Data were submitted to variance analysis and the effect of the treatments was assessed by regression analysis. Results showed significant differences between the treatments in all analysed variables except for plant height and grain protein content, by test F at 5% probability. Factor of response ky, indicator of crop sensitivity to water deficit, was lower than one for all assessed variables. Grain yield showed the highest sensitivity to water deficit.Os efeitos de diferentes níveis de déficit hídrico, aplicados durante o desenvolvimento da canola, foram avaliados por meio de um experimento conduzido em vasos de metal no interior de uma casa de vegetação, no Departamento de Engenharia Agrícola, da Universidade de Kassel, Alemanha. Foi utilizado um delineamento inteiramente casualizado, com a cultivar Ability (Summer Rape), e três níveis de déficit de água, 0%, 30%, 60% da evapotranspiração da cultura, totalizando três tratamentos com 20 repetições. O manejo da irrigação foi realizado por meio do balanço hídrico diário, em que ET = I - D, onde ET é evapotranspiração, I é irrigação, D é drenagem. Foram realizadas semanalmente as seguintes avaliações: diâmetro do caule (mm), altura da planta (cm), número de folhas, número de ramos e número de síliquas. No final do experimento, foram avaliadas a matéria verde total (g planta-1) e matéria seca total (g planta-1), produtividade de grãos (g planta-1), além do teor de proteína (%) e de óleo (%) dos grãos. Os dados foram submetidos à análise de variância, sendo o efeito dos tratamentos estudado por meio de análise de regressão. Os resultados mostraram diferenças significativas entre os tratamentos para as variáveis analisadas, exceto para a altura das plantas e teor de proteína dos grãos, pelo teste F a 5% de probabilidade. O fator de resposta ky, indicador da sensibilidade da cultura ao déficit hídrico, foi menor que um para todos os parâmetros estudados. A produtividade de grãos apresentou a maior sensibilidade ao déficit hídrico.Editora da Universidade Federal de Lavras2011-08-012015-04-30T13:36:12Z2015-04-30T13:36:12Z2015-04-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000400005BILIBIO, C. et al. Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop. Ciência e Agrotecnologia, Lavras, v. 35, n. 4, p. 672-684, jul./ago. 2011.http://repositorio.ufla.br/jspui/handle/1/7426Ciência e Agrotecnologia v.35 n.4 2011reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLABilibio, CarolinaCarvalho, Jacinto de AssunçãoHensel, OliverRichter, Uweenginfo:eu-repo/semantics/openAccess2016-06-07T20:25:18Zoai:localhost:1/7426Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2016-06-07T20:25:18Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop Efeito de diferentes níveis de déficit hídrico na cultura da canola |
title |
Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop |
spellingShingle |
Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop Bilibio, Carolina Water management Irrigation Water deficit Manejo de água Irrigação Déficit hídrico |
title_short |
Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop |
title_full |
Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop |
title_fullStr |
Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop |
title_full_unstemmed |
Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop |
title_sort |
Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop |
author |
Bilibio, Carolina |
author_facet |
Bilibio, Carolina Carvalho, Jacinto de Assunção Hensel, Oliver Richter, Uwe |
author_role |
author |
author2 |
Carvalho, Jacinto de Assunção Hensel, Oliver Richter, Uwe |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Bilibio, Carolina Carvalho, Jacinto de Assunção Hensel, Oliver Richter, Uwe |
dc.subject.por.fl_str_mv |
Water management Irrigation Water deficit Manejo de água Irrigação Déficit hídrico |
topic |
Water management Irrigation Water deficit Manejo de água Irrigação Déficit hídrico |
description |
Effects of different levels of water deficit applied during rapeseed crop development were assessed in a trial with metallic pots in greenhouse at the Department of Agricultural Engineering of Kassel University, Witzenhausen, Germany. A randomized block design was used with one cultivar (Ability Summer Rape) and three levels of water deficit (0, 30, and 60% of evapotranspiration) in three treatments and 20 replicates. Irrigation management was carried out through daily water balance, where ET = I - D; ET: evapotranspiration; I: irrigation; and D: drainage. The following evaluations were carried out weekly: stem diameter (mm); plant height (cm); number of leaves; number of branches and number of pods. At the end of the experiment, assessed total green matter (g plant-1), total dry matter (g plant-1), grain yield (g plant-1), grain protein content (%) and grain oil content (%) were also assessed. Data were submitted to variance analysis and the effect of the treatments was assessed by regression analysis. Results showed significant differences between the treatments in all analysed variables except for plant height and grain protein content, by test F at 5% probability. Factor of response ky, indicator of crop sensitivity to water deficit, was lower than one for all assessed variables. Grain yield showed the highest sensitivity to water deficit. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-08-01 2015-04-30T13:36:12Z 2015-04-30T13:36:12Z 2015-04-30 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000400005 BILIBIO, C. et al. Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop. Ciência e Agrotecnologia, Lavras, v. 35, n. 4, p. 672-684, jul./ago. 2011. http://repositorio.ufla.br/jspui/handle/1/7426 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000400005 http://repositorio.ufla.br/jspui/handle/1/7426 |
identifier_str_mv |
BILIBIO, C. et al. Effect of different levels of water deficit on rapeseed (Brassica napus L.) crop. Ciência e Agrotecnologia, Lavras, v. 35, n. 4, p. 672-684, jul./ago. 2011. |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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 |
Editora da Universidade Federal de Lavras |
publisher.none.fl_str_mv |
Editora da Universidade Federal de Lavras |
dc.source.none.fl_str_mv |
Ciência e Agrotecnologia v.35 n.4 2011 reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1807835123457982464 |