Data/hora: 11/06/2024 07:05:47

Provedor de dados: 	95	
País: 	Brazil	
Título: 	Critical levels of organic acids on seed germination and seedling growth of wheat	
Autores: 	Tunes,Lilian Madruga de; Avelar,Suemar Alexandre Gonçalves; Barros,Antonio Carlos Souza Albuquerque; Pedroso,Daniele Cardoso; Muniz,Marlove Fátima Brião; Menezes,Nilson Lemos de.	
Data: 	2012-01-01	
Ano: 	2012	
Palavras-chave: 	Triticum aestivum L.; Anaerobic decomposition; Toxicity; Physiological potential.	
Resumo: 	The objective of this study was to determine the responses of the wheat cultivars CD 108 and CD 111 for tolerance to organic acids. The effects of five concentrations of the three main acids formed in the soil were studied: acetic acid (0, 4, 8, 12 and 16 mM), propionic acid (0, 4, 8, 12 and 16 mM) and butyric acid (0, 2, 4, 8 and 12 mM). Tests included germination, shoot length, root length and dry weight of shoot and root. The variable root length is the most responsive variable for all the acids tested and the critical level of toxicity of acetic, propionic and butyric acids, which reduced root length by at least 50% was 9.0, 8.5 and 4.0 mM respectively. It was concluded that the presence of acetic, propionic and butyric acids in the germination substratum of wheat seeds of the cultivars CD 111 and CD 108 reduced seedling development, mainly by reducing the length of the radicles.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000300002	
Editor: 	Associação Brasileira de Tecnologia de Sementes	
Relação: 	10.1590/S0101-31222012000300002	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Sementes  v.34 n.3 2012	
Fonte: 	info:eu-repo/semantics/openAccess