Hidden deficiency of nickel in soybean: assessment and control
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Tipo de documento: | Tese |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/30459 |
Resumo: | Studies on nickel (Ni) fertilization in cultivated plants are remarkably new, although their positive effects have been reported since the early 1980s. This element, emerging as a micronutrient, takes place in the enzymes urease, in plants, and hydrogenase, in microorganisms. So, legume plants, due to their symbiotic association with diazotrophic bacteria, may be one of the species most affected by Ni deficiency in agricultural soils. The most important legume species currently cultivated is soybean, an important source of food on the world`s scenario. Thus, practices that lead to a more efficient and sustainable production of this species are aimed to ensuring the current and the future food security. In the first paper, we followed the evidence of Ni deficiency presented in the literature and associate them with the low natural contents of this element commonly found in agricultural soils, and, thus, we confirmed the occurrence of Ni deficiency also in soybean plants. However, in this species, Ni deficiency occurred as a hidden deficiency. To detect this event, we cultivated 17 soybean genotypes, which are commonly cultivated by farmers, with and without the supply of Ni in greenhouse and field, evaluating their physiology, metabolism and production. Therefore, we noticed that fertilization with this micronutrient maximized all evaluated points, even without expressing leaf symptoms of the Ni deficiency. In the second paper, we started from the selection of genotypes previously done, which discriminated them as to their responsiveness to Ni fertilization. To the most responsive genotype, we offered the fertilization with increasing doses of this micronutrient in order to establish the concentrations that would provide the ranges of undernutrition, adequate development and toxicity. As expected, the genotype tested required a higher concentration of Ni to reach its maximum development, and curiously, the nitrogen-fixing bacteria associated with these, too. To reach this conclusion, we evaluated the genotype development following the supply of the Ni doses and how the concentrations of Ni and activity of the root nodules accompanied them. With the developed works, we provide not only ways to detect the hidden deficiency that occurs in the new soybean genotypes, but also how to circumvent this limitation by provision of adequate doses for the maximum development of soybean plants. |
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Hidden deficiency of nickel in soybean: assessment and controlDeficiência oculta de níquel em soja: avaliação e controleDoseFertilizaçãoGenótipoGlycine maxFertilizationGenotypeMicrobiologia e Bioquímica do SoloStudies on nickel (Ni) fertilization in cultivated plants are remarkably new, although their positive effects have been reported since the early 1980s. This element, emerging as a micronutrient, takes place in the enzymes urease, in plants, and hydrogenase, in microorganisms. So, legume plants, due to their symbiotic association with diazotrophic bacteria, may be one of the species most affected by Ni deficiency in agricultural soils. The most important legume species currently cultivated is soybean, an important source of food on the world`s scenario. Thus, practices that lead to a more efficient and sustainable production of this species are aimed to ensuring the current and the future food security. In the first paper, we followed the evidence of Ni deficiency presented in the literature and associate them with the low natural contents of this element commonly found in agricultural soils, and, thus, we confirmed the occurrence of Ni deficiency also in soybean plants. However, in this species, Ni deficiency occurred as a hidden deficiency. To detect this event, we cultivated 17 soybean genotypes, which are commonly cultivated by farmers, with and without the supply of Ni in greenhouse and field, evaluating their physiology, metabolism and production. Therefore, we noticed that fertilization with this micronutrient maximized all evaluated points, even without expressing leaf symptoms of the Ni deficiency. In the second paper, we started from the selection of genotypes previously done, which discriminated them as to their responsiveness to Ni fertilization. To the most responsive genotype, we offered the fertilization with increasing doses of this micronutrient in order to establish the concentrations that would provide the ranges of undernutrition, adequate development and toxicity. As expected, the genotype tested required a higher concentration of Ni to reach its maximum development, and curiously, the nitrogen-fixing bacteria associated with these, too. To reach this conclusion, we evaluated the genotype development following the supply of the Ni doses and how the concentrations of Ni and activity of the root nodules accompanied them. With the developed works, we provide not only ways to detect the hidden deficiency that occurs in the new soybean genotypes, but also how to circumvent this limitation by provision of adequate doses for the maximum development of soybean plants.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Os estudos sobre a fertilização com níquel (Ni) em plantas cultivadas são notavelmente novos, embora os seus efeitos positivos venham sendo relatados desde o início dos anos 80. Esse elemento, emergente como um micronutriente, compõe as enzimas urease em plantas e hidrogenase em microrganismos. Nesse cenário, as plantas leguminosas, por sua associação simbiótica com bactérias diazotróficas, podem ser mais severamente afetadas pela deficiência de Ni em solos agrícolas. A soja, além de importante fonte de alimento, é uma leguminosa muito cultivada atualmente no cenário mundial. Assim, práticas que levem a uma produção mais eficiente e sustentável dessa espécie vegetal são visadas para garantir a segurança alimentar atual e futura. Para a confecção do primeiro artigo, associamos as evidências da deficiência de Ni presentes na literatura com os baixos teores naturais desse elemento no solo, o que é comumente encontrado em áreas agrícolas, para verificar uma possível ocorrência da deficiência de Ni em plantas de soja. Para tal, foram cultivados 17 genótipos de soja, comumente adotados pelos agricultores, com e sem o suprimento de Ni, em casa de vegetação e campo, para a avaliação da fisiologia, metabolismo e produção das plantas. Notamos que a fertilização com esse micronutriente maximizou grande parte dos pontos testados embora sem a ocorrência de sintomas foliares, demonstrando, dessa forma, que a deficiência de Ni em plantas de soja ocorre de forma oculta. Para a confecção do segundo artigo, partirmos da seleção genotípica realizada no primeiro estudo, permitindo-nos identificar os genótipos quanto a sua responsividade a fertilização com Ni. Ao genótipo mais responsivo, foram oferecidas seis doses desse micronutriente visando estabelecer as faixas de deficiência, desenvolvimento adequado e toxidez em plantas de soja. Como esperado, o genótipo avaliado demandou maiores concentrações de Ni para atingir seu máximo desenvolvimento, e curiosamente, as bactérias fixadoras de nitrogênio, associadas a esse, também. Para chegar a essa conclusão, avaliou-se tanto como o genótipo se desenvolvia em função das doses de Ni, bem como as concentrações desse micronutriente e seu efeito sobre a atividade dos nódulos radiculares. Com os trabalhos desenvolvidos, fornecemos não só formas de detectar a deficiência oculta de Ni que ocorre nos genótipos de soja cultivados, mas, também como contornar essa limitação pela oferta de doses de Ni adequadas para o máximo desenvolvimento dessas plantas.Universidade Federal de LavrasPrograma de Pós-graduação em Ciência do SoloUFLAbrasilDepartamento de Ciência do SoloCarneiro, Marco Aurélio CarboneGuilherme, Luiz Roberto GuimarãesCarneiro, Marco Aurélio CarboneGuilherme, Luiz Roberto GuimarãesLopes, GuilhermeMoreira, AdônisMoraes, Larissa Alexandra CardosoLavres Junior, JoséFreitas, Douglas Siqueira2018-09-20T18:24:35Z2018-09-20T18:24:35Z2018-09-192018-08-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfFREITAS, D. S. Hidden deficiency of nickel in soybean: assessment and control. 2018. 107 p. Tese (Doutorado em Ciência do Solo)–Universidade Federal de Lavras, Lavras, 2018.http://repositorio.ufla.br/jspui/handle/1/30459enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLA2023-05-11T13:19:24Zoai:localhost:1/30459Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-11T13:19:24Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Hidden deficiency of nickel in soybean: assessment and control Deficiência oculta de níquel em soja: avaliação e controle |
title |
Hidden deficiency of nickel in soybean: assessment and control |
spellingShingle |
Hidden deficiency of nickel in soybean: assessment and control Freitas, Douglas Siqueira Dose Fertilização Genótipo Glycine max Fertilization Genotype Microbiologia e Bioquímica do Solo |
title_short |
Hidden deficiency of nickel in soybean: assessment and control |
title_full |
Hidden deficiency of nickel in soybean: assessment and control |
title_fullStr |
Hidden deficiency of nickel in soybean: assessment and control |
title_full_unstemmed |
Hidden deficiency of nickel in soybean: assessment and control |
title_sort |
Hidden deficiency of nickel in soybean: assessment and control |
author |
Freitas, Douglas Siqueira |
author_facet |
Freitas, Douglas Siqueira |
author_role |
author |
dc.contributor.none.fl_str_mv |
Carneiro, Marco Aurélio Carbone Guilherme, Luiz Roberto Guimarães Carneiro, Marco Aurélio Carbone Guilherme, Luiz Roberto Guimarães Lopes, Guilherme Moreira, Adônis Moraes, Larissa Alexandra Cardoso Lavres Junior, José |
dc.contributor.author.fl_str_mv |
Freitas, Douglas Siqueira |
dc.subject.por.fl_str_mv |
Dose Fertilização Genótipo Glycine max Fertilization Genotype Microbiologia e Bioquímica do Solo |
topic |
Dose Fertilização Genótipo Glycine max Fertilization Genotype Microbiologia e Bioquímica do Solo |
description |
Studies on nickel (Ni) fertilization in cultivated plants are remarkably new, although their positive effects have been reported since the early 1980s. This element, emerging as a micronutrient, takes place in the enzymes urease, in plants, and hydrogenase, in microorganisms. So, legume plants, due to their symbiotic association with diazotrophic bacteria, may be one of the species most affected by Ni deficiency in agricultural soils. The most important legume species currently cultivated is soybean, an important source of food on the world`s scenario. Thus, practices that lead to a more efficient and sustainable production of this species are aimed to ensuring the current and the future food security. In the first paper, we followed the evidence of Ni deficiency presented in the literature and associate them with the low natural contents of this element commonly found in agricultural soils, and, thus, we confirmed the occurrence of Ni deficiency also in soybean plants. However, in this species, Ni deficiency occurred as a hidden deficiency. To detect this event, we cultivated 17 soybean genotypes, which are commonly cultivated by farmers, with and without the supply of Ni in greenhouse and field, evaluating their physiology, metabolism and production. Therefore, we noticed that fertilization with this micronutrient maximized all evaluated points, even without expressing leaf symptoms of the Ni deficiency. In the second paper, we started from the selection of genotypes previously done, which discriminated them as to their responsiveness to Ni fertilization. To the most responsive genotype, we offered the fertilization with increasing doses of this micronutrient in order to establish the concentrations that would provide the ranges of undernutrition, adequate development and toxicity. As expected, the genotype tested required a higher concentration of Ni to reach its maximum development, and curiously, the nitrogen-fixing bacteria associated with these, too. To reach this conclusion, we evaluated the genotype development following the supply of the Ni doses and how the concentrations of Ni and activity of the root nodules accompanied them. With the developed works, we provide not only ways to detect the hidden deficiency that occurs in the new soybean genotypes, but also how to circumvent this limitation by provision of adequate doses for the maximum development of soybean plants. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-09-20T18:24:35Z 2018-09-20T18:24:35Z 2018-09-19 2018-08-10 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
FREITAS, D. S. Hidden deficiency of nickel in soybean: assessment and control. 2018. 107 p. Tese (Doutorado em Ciência do Solo)–Universidade Federal de Lavras, Lavras, 2018. http://repositorio.ufla.br/jspui/handle/1/30459 |
identifier_str_mv |
FREITAS, D. S. Hidden deficiency of nickel in soybean: assessment and control. 2018. 107 p. Tese (Doutorado em Ciência do Solo)–Universidade Federal de Lavras, Lavras, 2018. |
url |
http://repositorio.ufla.br/jspui/handle/1/30459 |
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 |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Lavras Programa de Pós-graduação em Ciência do Solo UFLA brasil Departamento de Ciência do Solo |
publisher.none.fl_str_mv |
Universidade Federal de Lavras Programa de Pós-graduação em Ciência do Solo UFLA brasil Departamento de Ciência do Solo |
dc.source.none.fl_str_mv |
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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1815439238284443648 |