Atributos da arquitetura radicular como indicadores na seleção de plantas de trigo submetidas à deficiência de fósforo e toxidez por alumínio
Ano de defesa: | 2017 |
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Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
Centro de Ciências Rurais |
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Agronomia
|
Departamento: |
Agronomia
|
País: |
Brasil
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/11802 |
Resumo: | Phosphorus (P) deficiency and aluminum (Al3+) toxicity are two of the main constraints on achieving high crop yields and, often, those conditions coexist in soils. The selection of more adapted materials through easily assessed phenotype traits has a huge potential in the plant breeding. Thus, this work aimed to evaluate the response of traits of root system architecture to P deficiency and Al3+ toxicity, alone or in interaction, in nutritive solution and the potential of use of them in the plant selection of wheat. It were carried out four experiments, in a greenhouse, with the following treatments combination: [1] bifactorial experiment with four P levels ( 25, 50, 100 and 200 μM) in the main plot and four cultivars (Anahuac, IAC-5, Onix e Quartzo) in the subplot; [2] bifactorial experiment with four Al3+ levels ( 0, 37.5, 75 and 150 μM) in the main plot and four cultivars (Anahuac, IAC-5, Onix e Quartzo) in the subplot; [3] bifactorial experiment with four P vs. Al3+ combinations (-P -Al; +P -Al; -P +Al e +P +Al) in the main plot and four cultivars (Anahuac, IAC-5, Onix e Quartzo) in the subplot; and [4] trifactorial experiment with two P levels (25 and 125 μM), two Al3+ levels (0 and 74 μM) and two cultivars (IAC-5 and Onix). The experiment 4 was carried out in pots with sand until the anthesis while the others were carried out in pots with an inert substrate (expanded polystyrene) during 15 days. In all the experiments it was evaluated shoot (length, dry weight, foliar area), root dry weight and root system architecture (dry weight, length, superficial area, volume, diameter) growth, being in the assays 2, 3 and 4 the root variables were evaluated individually for root orders 0, 1 and 2. There was a wide variability among the cultivars for the tested conditions, which allows the use of root system architecture characterization in the selection of more adapted plants to P deficiency and Al3+ toxicity in wheat. P deficiency reduced both root and shoot growth, having the cv. IAC-5 showed the best response. The presence of Al3+ reduced the growth of plants, being cv. IAC-5 to more tolerant. This cultivar had higher growth of lateral roots of first and second order, while the sensitive one (Anahuac) had thickening of these types of root. The experimental system allowed a rapid evaluation of the alterations in the root system architecture in response to P deficiency and Al3+ toxicity, and the responses of short-term experiments are similar to those of the long-term. |
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2017-10-05T12:08:07Z2017-10-05T12:08:07Z2017http://repositorio.ufsm.br/handle/1/11802Phosphorus (P) deficiency and aluminum (Al3+) toxicity are two of the main constraints on achieving high crop yields and, often, those conditions coexist in soils. The selection of more adapted materials through easily assessed phenotype traits has a huge potential in the plant breeding. Thus, this work aimed to evaluate the response of traits of root system architecture to P deficiency and Al3+ toxicity, alone or in interaction, in nutritive solution and the potential of use of them in the plant selection of wheat. It were carried out four experiments, in a greenhouse, with the following treatments combination: [1] bifactorial experiment with four P levels ( 25, 50, 100 and 200 μM) in the main plot and four cultivars (Anahuac, IAC-5, Onix e Quartzo) in the subplot; [2] bifactorial experiment with four Al3+ levels ( 0, 37.5, 75 and 150 μM) in the main plot and four cultivars (Anahuac, IAC-5, Onix e Quartzo) in the subplot; [3] bifactorial experiment with four P vs. Al3+ combinations (-P -Al; +P -Al; -P +Al e +P +Al) in the main plot and four cultivars (Anahuac, IAC-5, Onix e Quartzo) in the subplot; and [4] trifactorial experiment with two P levels (25 and 125 μM), two Al3+ levels (0 and 74 μM) and two cultivars (IAC-5 and Onix). The experiment 4 was carried out in pots with sand until the anthesis while the others were carried out in pots with an inert substrate (expanded polystyrene) during 15 days. In all the experiments it was evaluated shoot (length, dry weight, foliar area), root dry weight and root system architecture (dry weight, length, superficial area, volume, diameter) growth, being in the assays 2, 3 and 4 the root variables were evaluated individually for root orders 0, 1 and 2. There was a wide variability among the cultivars for the tested conditions, which allows the use of root system architecture characterization in the selection of more adapted plants to P deficiency and Al3+ toxicity in wheat. P deficiency reduced both root and shoot growth, having the cv. IAC-5 showed the best response. The presence of Al3+ reduced the growth of plants, being cv. IAC-5 to more tolerant. This cultivar had higher growth of lateral roots of first and second order, while the sensitive one (Anahuac) had thickening of these types of root. The experimental system allowed a rapid evaluation of the alterations in the root system architecture in response to P deficiency and Al3+ toxicity, and the responses of short-term experiments are similar to those of the long-term.A deficiência de fósforo (P) e a toxidez por alumínio (Al3+) são dois dos principais fatores limitantes na obtenção de altas produtividades das culturas agrícolas e, frequentemente, essas duas condições coexistem nos solos. A seleção de materiais mais adaptados através de atributos fenotípicos de fácil mensuração tem um grande potencial de aplicação no melhoramento genético de plantas. Assim, esse trabalho objetivou avaliar as respostas de caracteres da arquitetura do sistema radicular à deficiência de P e toxidez por Al3+, isolados ou em interação, em solução nutritiva e o potencial de utilização deles na seleção de plantas de trigo. Foram realizados quatro experimentos, em casa de vegetação, com as seguintes combinações de tratamentos: [1] experimento bifatorial com quatro níveis de P (25, 50, 100 e 200 μM) na parcela principal e quatro cultivares (Anahuac, IAC-5, Onix e Quartzo) na subparcela; [2] experimento bifatorial com quatro níveis de Al3+ (0, 37,5, 75 e 150 μM) na parcela principal e quatro cultivares (Anahuac, IAC-5, Onix e Quartzo) na subparcela; [3] experimento bifatorial com quatro combinações de P vs. Al3+ (-P -Al; +P -Al; -P +Al e +P +Al) na parcela principal e quatro cultivares (Anahuac, IAC-5, Onix e Quartzo) na subparcela; e [4] experimento trifatorial com dois níveis de P (25 e 125 μM), dois de Al3+ (0 e 74 μM) e duas cultivares (IAC-5 e Onix) constituindo os fatores. O Experimento 4 foi conduzido em vasos com areia até a antese e os demais em vasos contendo substrato inerte (poliestireno expandido) durante 15 dias. Em todos os experimentos foi avaliado o crescimento da parte aérea (comprimento, massa seca e área foliar), massa seca de raízes e arquitetura do sistema radicular (comprimento, área superficial, volume e diâmetro), sendo que nos experimentos 2, 3 e 4 essas variáveis foram avaliadas separadamente para as raízes de ordem 0, 1 e 2. Houve uma ampla variabilidade entre as cultivares para as condições testadas, o que permite a utilização da avaliação de caracteres da arquitetura radicular na seleção de plantas mais adaptadas à deficiência de P e toxidez por Al3+ em trigo. A deficiência de P reduziu o crescimento tanto de raízes quanto parte aérea, sendo a cv. IAC-5 a que apresentou melhor resposta ao nutriente. A presença de Al3+ reduziu o crescimento de plantas, sendo a cv. IAC-5 a mais tolerante. A cultivar tolerante ao Al3+ (IAC-5) teve maior crescimento de raízes laterais de primeira e segunda ordem, enquanto que a sensível (Anahuac) teve engrossamento dessas raízes. O sistema experimental utilizado permitiu uma rápida avaliação das alterações na arquitetura do sistema radicular em resposta à deficiência de P e toxidez por Al3+ , sendo as respostas de experimentos de curto prazo semelhantes ao de longo prazo.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de Santa MariaCentro de Ciências RuraisPrograma de Pós-Graduação em AgronomiaUFSMBrasilAgronomiaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessTriticum aestivum L.Seleção fenotípicaComprimento de raízesDiâmetro de raízesPhenotypic selectionRoot lengthRoot diameterCNPQ::CIENCIAS AGRARIAS::AGRONOMIAAtributos da arquitetura radicular como indicadores na seleção de plantas de trigo submetidas à deficiência de fósforo e toxidez por alumínioAttributes of root architecture as indicators in plant selection of wheat submitted to phosphorus deficiency and aluminum toxicityinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisNicoloso, Fernando Teixeirahttp://lattes.cnpq.br/0881828847600446Girotto, Eduardohttp://lattes.cnpq.br/7875783414379102De Bona, Fabiano Danielhttp://lattes.cnpq.br/0611124392462380Brunetto, Gustavohttp://lattes.cnpq.br/1185169003700830Tabaldi, Luciane Almerihttp://lattes.cnpq.br/7018571529110665http://lattes.cnpq.br/9116593588254710Schorr, Marcio Renan Weber5001000000096003aa5c4d2-4e91-4fa4-a5f4-ffd2a4121ed704ac17ee-9c0f-49b7-86af-86c3dbdbf98cf4070538-3010-4310-ae3e-608c2f0c4f488e9a684c-84e0-43b7-b5fe-d4a4a80a957a9425a897-c68a-4509-b675-fb2c32e51109e45e85b3-444c-42ba-bfbd-a818a1a24a69reponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALSchorr, Márcio Renan Weber.pdfSchorr, Márcio Renan Weber.pdfTese de Doutoradoapplication/pdf4537207http://repositorio.ufsm.br/bitstream/1/11802/1/Schorr%2c%20M%c3%a1rcio%20Renan%20Weber.pdf9fa269dc065fd6b147203558e970a834MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Atributos da arquitetura radicular como indicadores na seleção de plantas de trigo submetidas à deficiência de fósforo e toxidez por alumínio |
dc.title.alternative.eng.fl_str_mv |
Attributes of root architecture as indicators in plant selection of wheat submitted to phosphorus deficiency and aluminum toxicity |
title |
Atributos da arquitetura radicular como indicadores na seleção de plantas de trigo submetidas à deficiência de fósforo e toxidez por alumínio |
spellingShingle |
Atributos da arquitetura radicular como indicadores na seleção de plantas de trigo submetidas à deficiência de fósforo e toxidez por alumínio Schorr, Marcio Renan Weber Triticum aestivum L. Seleção fenotípica Comprimento de raízes Diâmetro de raízes Phenotypic selection Root length Root diameter CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Atributos da arquitetura radicular como indicadores na seleção de plantas de trigo submetidas à deficiência de fósforo e toxidez por alumínio |
title_full |
Atributos da arquitetura radicular como indicadores na seleção de plantas de trigo submetidas à deficiência de fósforo e toxidez por alumínio |
title_fullStr |
Atributos da arquitetura radicular como indicadores na seleção de plantas de trigo submetidas à deficiência de fósforo e toxidez por alumínio |
title_full_unstemmed |
Atributos da arquitetura radicular como indicadores na seleção de plantas de trigo submetidas à deficiência de fósforo e toxidez por alumínio |
title_sort |
Atributos da arquitetura radicular como indicadores na seleção de plantas de trigo submetidas à deficiência de fósforo e toxidez por alumínio |
author |
Schorr, Marcio Renan Weber |
author_facet |
Schorr, Marcio Renan Weber |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Nicoloso, Fernando Teixeira |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/0881828847600446 |
dc.contributor.referee1.fl_str_mv |
Girotto, Eduardo |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/7875783414379102 |
dc.contributor.referee2.fl_str_mv |
De Bona, Fabiano Daniel |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/0611124392462380 |
dc.contributor.referee3.fl_str_mv |
Brunetto, Gustavo |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/1185169003700830 |
dc.contributor.referee4.fl_str_mv |
Tabaldi, Luciane Almeri |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/7018571529110665 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/9116593588254710 |
dc.contributor.author.fl_str_mv |
Schorr, Marcio Renan Weber |
contributor_str_mv |
Nicoloso, Fernando Teixeira Girotto, Eduardo De Bona, Fabiano Daniel Brunetto, Gustavo Tabaldi, Luciane Almeri |
dc.subject.por.fl_str_mv |
Triticum aestivum L. Seleção fenotípica Comprimento de raízes Diâmetro de raízes |
topic |
Triticum aestivum L. Seleção fenotípica Comprimento de raízes Diâmetro de raízes Phenotypic selection Root length Root diameter CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
dc.subject.eng.fl_str_mv |
Phenotypic selection Root length Root diameter |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
description |
Phosphorus (P) deficiency and aluminum (Al3+) toxicity are two of the main constraints on achieving high crop yields and, often, those conditions coexist in soils. The selection of more adapted materials through easily assessed phenotype traits has a huge potential in the plant breeding. Thus, this work aimed to evaluate the response of traits of root system architecture to P deficiency and Al3+ toxicity, alone or in interaction, in nutritive solution and the potential of use of them in the plant selection of wheat. It were carried out four experiments, in a greenhouse, with the following treatments combination: [1] bifactorial experiment with four P levels ( 25, 50, 100 and 200 μM) in the main plot and four cultivars (Anahuac, IAC-5, Onix e Quartzo) in the subplot; [2] bifactorial experiment with four Al3+ levels ( 0, 37.5, 75 and 150 μM) in the main plot and four cultivars (Anahuac, IAC-5, Onix e Quartzo) in the subplot; [3] bifactorial experiment with four P vs. Al3+ combinations (-P -Al; +P -Al; -P +Al e +P +Al) in the main plot and four cultivars (Anahuac, IAC-5, Onix e Quartzo) in the subplot; and [4] trifactorial experiment with two P levels (25 and 125 μM), two Al3+ levels (0 and 74 μM) and two cultivars (IAC-5 and Onix). The experiment 4 was carried out in pots with sand until the anthesis while the others were carried out in pots with an inert substrate (expanded polystyrene) during 15 days. In all the experiments it was evaluated shoot (length, dry weight, foliar area), root dry weight and root system architecture (dry weight, length, superficial area, volume, diameter) growth, being in the assays 2, 3 and 4 the root variables were evaluated individually for root orders 0, 1 and 2. There was a wide variability among the cultivars for the tested conditions, which allows the use of root system architecture characterization in the selection of more adapted plants to P deficiency and Al3+ toxicity in wheat. P deficiency reduced both root and shoot growth, having the cv. IAC-5 showed the best response. The presence of Al3+ reduced the growth of plants, being cv. IAC-5 to more tolerant. This cultivar had higher growth of lateral roots of first and second order, while the sensitive one (Anahuac) had thickening of these types of root. The experimental system allowed a rapid evaluation of the alterations in the root system architecture in response to P deficiency and Al3+ toxicity, and the responses of short-term experiments are similar to those of the long-term. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-10-05T12:08:07Z |
dc.date.available.fl_str_mv |
2017-10-05T12:08:07Z |
dc.date.issued.fl_str_mv |
2017 |
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 |
http://repositorio.ufsm.br/handle/1/11802 |
url |
http://repositorio.ufsm.br/handle/1/11802 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500100000009 |
dc.relation.confidence.fl_str_mv |
600 |
dc.relation.authority.fl_str_mv |
3aa5c4d2-4e91-4fa4-a5f4-ffd2a4121ed7 04ac17ee-9c0f-49b7-86af-86c3dbdbf98c f4070538-3010-4310-ae3e-608c2f0c4f48 8e9a684c-84e0-43b7-b5fe-d4a4a80a957a 9425a897-c68a-4509-b675-fb2c32e51109 e45e85b3-444c-42ba-bfbd-a818a1a24a69 |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Agronomia |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Agronomia |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações do UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
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Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
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UFSM |
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Biblioteca Digital de Teses e Dissertações do UFSM |
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Biblioteca Digital de Teses e Dissertações do UFSM |
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http://repositorio.ufsm.br/bitstream/1/11802/1/Schorr%2c%20M%c3%a1rcio%20Renan%20Weber.pdf http://repositorio.ufsm.br/bitstream/1/11802/2/license_rdf http://repositorio.ufsm.br/bitstream/1/11802/3/license.txt http://repositorio.ufsm.br/bitstream/1/11802/4/Schorr%2c%20M%c3%a1rcio%20Renan%20Weber.pdf.txt http://repositorio.ufsm.br/bitstream/1/11802/5/Schorr%2c%20M%c3%a1rcio%20Renan%20Weber.pdf.jpg |
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repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
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1801485479006175232 |