| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Methodology adjustments for organic acid tolerance studies in oat under hydroponic systems
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| Autores: |
Kopp,Mauricio Marini
Luz,Viviane Kopp da
Souza,Velci Queiróz de
Coimbra,Jefferson Luis Meirelles
Sousa,Rogério Oliveira de
Carvalho,Fernando Irajá Félix de
Oliveira,Antonio Costa de
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| Data: |
2009-06-01
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| Ano: |
2009
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| Palavras-chave: |
Phytotoxicity
Levels
Abiotic stress
Genetic breeding
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| Resumo: |
The occurrence of anaerobic conditions in hydromorphic soils favors the development of anaerobic microorganisms that produce phytotoxic substances representing primarily by organic acids. The selection of promising oat (Avena sativa L.) genotypes for use in those situations requires field evaluations that can be cumbersome, making hydroponics a viable alternative. The objective of this work was to adjust a methodology to use in studies of tolerance to organic acids in oat under hydroponic systems. For such goal, the best germination system was determined in order to reduce the seedling initial establishment effects under hydroponics, the ideal concentration for screening genotypes and the best variable for stress evaluation. It was found that the most efficient germination system was "pleated germination paper" with small and husked seeds. The best concentration for studying organic acid tolerance ranged from 2.3 to 6.2 mM and the most suitable variable for the evaluation was root length.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300003
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132009000300003
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.52 n.3 2009
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| Direitos: |
info:eu-repo/semantics/openAccess
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