Patogenicidade de fungos associados às sementes e plântulas de amendoim cv. Tatu

Abstract

Seeds and seedlings of groundnut ( Arachis hypogaea) cv. Tatu were investigated under laboratory and greenhouse conditions to detect and identify any seedborne pathogenic fungi present, besides determining the pathogenicity and the seed damages. The fungi detected were Aspergillus niger, Fusarium oxysporum, Cercospora arachidicola [ Mycosphaerella arachidis], Rhizopus sp., Penicillium sp., Cladosporium sp. and Phoma sp. The most frequently isolated fungi were Aspergillus niger and Penicillium sp. These fungi were transmitted by seeds and caused damping-off before and after seedling emergence.