Data/hora: 16/06/2024 06:46:37

Provedor de dados: 	95	
País: 	Brazil	
Título: 	Physiological potential of rice seeds treated with rhizobacteria or the insecticide thiamethoxam	
Autores: 	Soares,Vanessa Nogueira; Tillmann,Maria Ângela André; Moura,Andréa Bittencourt; Zanatta,Zarela Gudelia Casas Navarro.	
Data: 	2012-01-01	
Ano: 	2012	
Palavras-chave: 	Oryza sativa; Bioactivator; PGPR; Vigor.	
Resumo: 	Development of new technologies, aiming at increasing productivity in different crops, involves constant research on the effectiveness and application of these techniques in seed treatment. In this study, it was aimed at evaluating physiological potential of rice seeds treated with plant growth-promoting rhizobacteria (PGPR) (strains DFs185, DFs223, DFs306, DFs416), or with two dosages of the insecticide thiamethoxam. The variables assessed were: germination (G); first count of germination (FCG); cold test (CT); length of seedlings aerial parts (LAP), root system (LRS), and total length (TL); emergence speed index (ESI); emergence (E), at 14 days; and dry phytomass (DP). Treatments have had a positive effect on percentage of G, FCG and E. The strain DFs185 has promoted increase in percentage emergence, for five of the six lots assessed. The variables: LAP; LRS; TL; ESI; and DP have undergone low or none influence of treatments; and there has been no toxic effect of rhizobacteria or insecticide thiamethoxam. In the cold test, a negative effect of treatments has been detected. Seed treatment with rhizobacteria, as well as with thiamethoxam, improve quality of low quality rice seeds. The strain DFs185 is promising for treating rice seeds, once it stimulates seed germination and emergence.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000400006	
Editor: 	Associação Brasileira de Tecnologia de Sementes	
Relação: 	10.1590/S0101-31222012000400006	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Sementes  v.34 n.4 2012	
Fonte: 	info:eu-repo/semantics/openAccess