Gas exchange, root morphology and nutrients in maize plants inoculated with Azospirillum brasilense cultivated under two water conditions.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133283 https://doi.org/10.1590/1678-4324-2021190580 |
Resumo: | The objective of this study was to evaluate the gas exchange, root morphology and nutrient concentration in maize plants inoculated with A. brasilense under two water conditions. The experiments were carried out in a greenhouse, one under irrigation and the other under water deficit. The treatments consisted of four A. brasilense inoculants (control (without inoculation), Az1 (CMS 7 + 26), Az2 (CMS 11 + 26) and Az3 (CMS 26 +42). At the V6 plant stage, water stress was imposed on maize plants for 15 days. The phytotechnical characteristics, gas exchange, root morphology, root dry matter and macronutrient analysis were evaluated after 15 days of water deficit imposition. The water deficit caused a reduction in the development of maize plants. The presence of A. brasilense Az1 under the same condition yielded higher photosynthesis, carboxylation efficiency, water use efficiency, and greater soil exploration with increased length, surface area and root volume of plants. Inoculation by A. brasilense increased root system volume by an average of 40 and 47% under irrigation and water deficit, respectively, when compared to non-inoculated plants. The inoculant Az1 attenuated the deleterious effects caused by drought and yielded the best growth of the root system, resulting in the tolerance of maize plants to water deficit. |
id |
EMBR_692c403e9e93c66da97860b41c092c80 |
---|---|
oai_identifier_str |
oai:www.alice.cnptia.embrapa.br:doc/1133283 |
network_acronym_str |
EMBR |
network_name_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository_id_str |
2154 |
spelling |
Gas exchange, root morphology and nutrients in maize plants inoculated with Azospirillum brasilense cultivated under two water conditions.Déficit hídricoUso da águaEficiênciaWinRhizoMilhoRaizMorfologia VegetalNutrienteInoculaçãoThe objective of this study was to evaluate the gas exchange, root morphology and nutrient concentration in maize plants inoculated with A. brasilense under two water conditions. The experiments were carried out in a greenhouse, one under irrigation and the other under water deficit. The treatments consisted of four A. brasilense inoculants (control (without inoculation), Az1 (CMS 7 + 26), Az2 (CMS 11 + 26) and Az3 (CMS 26 +42). At the V6 plant stage, water stress was imposed on maize plants for 15 days. The phytotechnical characteristics, gas exchange, root morphology, root dry matter and macronutrient analysis were evaluated after 15 days of water deficit imposition. The water deficit caused a reduction in the development of maize plants. The presence of A. brasilense Az1 under the same condition yielded higher photosynthesis, carboxylation efficiency, water use efficiency, and greater soil exploration with increased length, surface area and root volume of plants. Inoculation by A. brasilense increased root system volume by an average of 40 and 47% under irrigation and water deficit, respectively, when compared to non-inoculated plants. The inoculant Az1 attenuated the deleterious effects caused by drought and yielded the best growth of the root system, resulting in the tolerance of maize plants to water deficit.DANIELE MARIA MARQUES, Universidade Federal de Lavras; PAULO CESAR MAGALHAES, CNPMS; IVANILDO EVODIO MARRIEL, CNPMS; CARLOS CÉSAR GOMES JÚNIOR, Universidade Federal de Alfenas; ADRIANO BORTOLOTTI DA SILVA, Universidade José do Rosário Vellano - UNIFENAS; THIAGO CORRÊA DE SOUZA, Universidade Federal de Alfenas.MARQUES, D. M.MAGALHAES, P. C.MARRIEL, I. E.GOMES JUNIOR, C. C.SILVA, A. B. daSOUZA, T. C. de2021-08-06T14:00:22Z2021-08-06T14:00:22Z2021-08-062021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrazilian Archives of Biology and Technology, v. 64, e21190580, 2021.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133283https://doi.org/10.1590/1678-4324-2021190580enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2021-08-06T14:00:32Zoai:www.alice.cnptia.embrapa.br:doc/1133283Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542021-08-06T14:00:32falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542021-08-06T14:00:32Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Gas exchange, root morphology and nutrients in maize plants inoculated with Azospirillum brasilense cultivated under two water conditions. |
title |
Gas exchange, root morphology and nutrients in maize plants inoculated with Azospirillum brasilense cultivated under two water conditions. |
spellingShingle |
Gas exchange, root morphology and nutrients in maize plants inoculated with Azospirillum brasilense cultivated under two water conditions. MARQUES, D. M. Déficit hídrico Uso da água Eficiência WinRhizo Milho Raiz Morfologia Vegetal Nutriente Inoculação |
title_short |
Gas exchange, root morphology and nutrients in maize plants inoculated with Azospirillum brasilense cultivated under two water conditions. |
title_full |
Gas exchange, root morphology and nutrients in maize plants inoculated with Azospirillum brasilense cultivated under two water conditions. |
title_fullStr |
Gas exchange, root morphology and nutrients in maize plants inoculated with Azospirillum brasilense cultivated under two water conditions. |
title_full_unstemmed |
Gas exchange, root morphology and nutrients in maize plants inoculated with Azospirillum brasilense cultivated under two water conditions. |
title_sort |
Gas exchange, root morphology and nutrients in maize plants inoculated with Azospirillum brasilense cultivated under two water conditions. |
author |
MARQUES, D. M. |
author_facet |
MARQUES, D. M. MAGALHAES, P. C. MARRIEL, I. E. GOMES JUNIOR, C. C. SILVA, A. B. da SOUZA, T. C. de |
author_role |
author |
author2 |
MAGALHAES, P. C. MARRIEL, I. E. GOMES JUNIOR, C. C. SILVA, A. B. da SOUZA, T. C. de |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
DANIELE MARIA MARQUES, Universidade Federal de Lavras; PAULO CESAR MAGALHAES, CNPMS; IVANILDO EVODIO MARRIEL, CNPMS; CARLOS CÉSAR GOMES JÚNIOR, Universidade Federal de Alfenas; ADRIANO BORTOLOTTI DA SILVA, Universidade José do Rosário Vellano - UNIFENAS; THIAGO CORRÊA DE SOUZA, Universidade Federal de Alfenas. |
dc.contributor.author.fl_str_mv |
MARQUES, D. M. MAGALHAES, P. C. MARRIEL, I. E. GOMES JUNIOR, C. C. SILVA, A. B. da SOUZA, T. C. de |
dc.subject.por.fl_str_mv |
Déficit hídrico Uso da água Eficiência WinRhizo Milho Raiz Morfologia Vegetal Nutriente Inoculação |
topic |
Déficit hídrico Uso da água Eficiência WinRhizo Milho Raiz Morfologia Vegetal Nutriente Inoculação |
description |
The objective of this study was to evaluate the gas exchange, root morphology and nutrient concentration in maize plants inoculated with A. brasilense under two water conditions. The experiments were carried out in a greenhouse, one under irrigation and the other under water deficit. The treatments consisted of four A. brasilense inoculants (control (without inoculation), Az1 (CMS 7 + 26), Az2 (CMS 11 + 26) and Az3 (CMS 26 +42). At the V6 plant stage, water stress was imposed on maize plants for 15 days. The phytotechnical characteristics, gas exchange, root morphology, root dry matter and macronutrient analysis were evaluated after 15 days of water deficit imposition. The water deficit caused a reduction in the development of maize plants. The presence of A. brasilense Az1 under the same condition yielded higher photosynthesis, carboxylation efficiency, water use efficiency, and greater soil exploration with increased length, surface area and root volume of plants. Inoculation by A. brasilense increased root system volume by an average of 40 and 47% under irrigation and water deficit, respectively, when compared to non-inoculated plants. The inoculant Az1 attenuated the deleterious effects caused by drought and yielded the best growth of the root system, resulting in the tolerance of maize plants to water deficit. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-06T14:00:22Z 2021-08-06T14:00:22Z 2021-08-06 2021 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Brazilian Archives of Biology and Technology, v. 64, e21190580, 2021. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133283 https://doi.org/10.1590/1678-4324-2021190580 |
identifier_str_mv |
Brazilian Archives of Biology and Technology, v. 64, e21190580, 2021. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133283 https://doi.org/10.1590/1678-4324-2021190580 |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1794503507707953152 |