Sanitary analysis, transmission and pathogenicity of fungi associated with forage plant seeds in tropical regions of Brazil

Brazil is a major producer and exporter of beef in the world, 90% of the production is made in pasture and 85% of cultivated pastures in the country are Brachiaria sp. With a growing livestock industry in the recent years, several forage plant diseases became significant importance for causing losses in pasture productivity and quality. This study aims at quantifying the species of fungi associated with seeds and their frequency in forage plants from tropical regions of Brazil. Assays were performed considering: incidence, pathogenicity and seed-seedling transmission of fungi associated with seeds. Therefore, 28 lots of forage species seeds produced in the harvest of 2010-2011 were used. Fourteen genera of fungi associated with seeds were found, among which Bipolaris sp., Phoma sp., and Curvularia sp. had pathogenic potential. It was possible to note that Bipolaris sp., is prejudicial to forage seedlings of Brachiaria, Panicum and Crotalaria. Bipolaris sp. and Curvularia sp. have an average of seed-seedling transmission of 100% and 90%, respectively.

Bibliographic Details

Main Authors:	Santos,Gil Rodrigues dos, Tschoeke,Paulo Henrique, Silva,Luciana de Godoi, Silveira,Marcela Cristina Agustini Carneiro da, Reis,Higor Barbosa, Brito,Deyvid Rocha, Carlos,Dalmarcia de Souza
Format:	Digital revista
Language:	English
Published:	ABRATES - Associação Brasileira de Tecnologia de Sementes 2014
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372014000100007
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