Data/hora: 18/06/2024 13:40:31

Provedor de dados: 	102	
País: 	Brazil	
Título: 	Influence of internal seedborne Fusarium semitectum on cotton seedlings	
Autores: 	Costa,Maria L. N.; Dhingra,Onkar D.; Silva,Janaina L. da.	
Data: 	2005-04-01	
Ano: 	2005	
Palavras-chave: 	Negative geotropism; Root rot; Seedborne inoculum; Cotton diseases; Gossypium hirsutum.	
Resumo: 	Fusarium semitectum was found to be the major seed colonizing fungus in the commercial acid delinted cotton (Gossypium hirsutum) seed lots. There was no correlation, however, between its incidence and seedling emergence and disease symptoms on the emerged seedlings in autoclaved sand. Inoculation technique simulating internally seedborne nature of the fungus showed that the observed non-correlation might be related to the threshold level of seed coat colonization. The internally seedborne inoculum besides reducing seedling emergence, incited an array of symptoms on the emerged seedlings, which ranged from negative geotropism, leaf tearing, collar rot leading to dry root rot and seedling mortality. The dry root rot continued to develop on the plants surviving the seedling phase. The collar rot symptoms can be confused with those caused by Rhizoctonia solani.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000200014	
Editor: 	Sociedade Brasileira de Fitopatologia	
Relação: 	10.1590/S0100-41582005000200014	
Formato: 	text/html	
Fonte: 	Fitopatologia Brasileira  v.30 n.2 2005	
Fonte: 	info:eu-repo/semantics/openAccess