Título:	Methodology adjustments for organic acid tolerance studies in oat under hydroponic systems.
Autoria:	KOPP, M. M. LUZ, B. K. da SOUZA, V. Q. de COIMBRA, J. L. M. SOUSA, R. O. de CARVALHO, F. E. F. de OLIVEIRA, A. C. de
Afiliação:	MAURICIO MARINI KOPP, CNPGL; VIVIANE KOPP DA LUZ, Universidade Federal de Pelotas; VELCI QUEIRÓZ DE SOUZA, UFSM; JEFFERSON LUIS MEIRELLES COIMBRA, UDESC; ROGÉRIO OLIVEIRA DE SOUSA, Universidade Federal de Pelotas; FERNANDO IRAJÁ FÉLIX DE, Universidade Federal de Pelotas; ANTONIO COSTA DE OLIVEIRA, Universidade Federal de Pelotas.
Ano de publicação:	2009
Referência:	Brazilian Archives of Biology and Technology, v. 52, n. 3, p. 531-539, 2009.
Conteúdo:	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.
NAL Thesaurus:	abiotic stress phytotoxicity
Palavras-chave:	Levels Genetic breeding
Digital Object Identifier:	https://doi.org/10.1590/S1516-89132009000300003
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPGL)