Data/hora: 12/06/2024 03:35:24

Provedor de dados: 	92	
País: 	Brazil	
Título: 	Correlation between the infestation level of Sitophilus zeamais Motschulsky, 1855 (Coleoptera, Curculionidae) and the quality factors of stored corn, Zea mays L. (Poaceae)	
Autores: 	Caneppele,Maria Aparecida Braga; Caneppele,Carlos; Lázzari,Flávio Antonio; Lázzari,Sonia Maria Noemberg.	
Data: 	2003-12-01	
Ano: 	2003	
Palavras-chave: 	Maize weevil; Quality factors; Stored corn; Commercial grade.	
Resumo: 	This experiment was carried out in order to evaluate the effect of Sitophilus zeamais on physical, physiological and sanitary quality of stored corn. Samples of 500 g of the hybrid OC-705, in three replicates, were conditioned in glasses covered with a screened lid, and kept in chamber at 25±2ºC, 70±5% RH and 12 h of photophase, for 150 days. The infestation levels were 0, 5, 15 and 50 adults/replicate, for the storage periods of 30, 60, 90, 120 and 150 days. The moisture content, classification, weight loss, germination and internal infestation were evaluated monthly. Significant inverse correlations were verified between the number of insects and both the germination and the weight loss; also between the internal infestation and the germination and the standard type. The presence of S. zeamais showed a positive correlation with the weight loss, what means that the internal and external infestations contribute to the reduction of physiological and physical quality of corn seeds. The mean dry matter loss was 0,36%/day, corresponding to a consumption of 0,0001%/insect/month. As the result of those damages, the product suffered reduction of the commercial grade in 30 days, with significant loss in all quality factors.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262003000400015	
Editor: 	Sociedade Brasileira De Entomologia	
Relação: 	10.1590/S0085-56262003000400015	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Entomologia  v.47 n.4 2003	
Fonte: 	info:eu-repo/semantics/openAccess