Pesquisa Agropecuária Tropical
On-line version ISSN 1983-4063
KOBAYASTI, Leimi et al. Fungi incidence on Jatropha curcas L. seeds. Pesqui. Agropecu. Trop. [online]. 2011, vol.41, n.3, pp.385-390. ISSN 1983-4063. http://dx.doi.org/10.5216/pat.v41i3.10948.
The knowledge on seed pathogens is essential for setting management recommendations. Thus, aiming to determine the pathogens associated with Jatropha curcas L., in order to develop strategies to control them, the blotter test, modified with hydric restrictor NaCl - 1.0 MPa, and evaluation after seven days of incubation, at 25°C, with a 12-hours photoperiod, was used. The Jatropha seeds evaluated presented a high level of fungal species, regardless of their surface disinfection. Nineteen different fungi genera were identified, especially Alternaria alternata, Colletotrichum sp., Fusarium spp., and Rhizoctonia solani, which are commonly pathogenic and whose relevance must be taken into account.
Keywords : Jatropha curcas L; blotter test; pathogenic fungi.