%0 Journal Article
%T Search for sources of resistance to Fusarium wilt (Fusarium oxysporum f. sp. vasinfectum) in okra germplasm
%A Frederick Mendes Aguiar
%A Sami Jorge Michereff
%A Leonardo Silva Boiteux
%A Ailton Reis
%J Crop Breeding and Applied Biotechnology
%D 2013
%I Brazilian Society of Plant Breeding
%X ¨C Fusarium oxysporum f. sp. vasinfectum (FOV) is one the most destructive okra (Abelmoschus esculentus) pathogens in Brazil. Fifty-four okra accessions were evaluated for resistance to FOV. Greenhouse screening was initially carried out with one FOV isolate (¡®Fus-194¡¯). Inoculation (in all assays) was carried out with 21-day-old plantlets, using the root-dipping inoculation technique. Thirty-three accessions displaying differential responses in the first screening were re-evaluated in two additional assays, using two FOV isolates (¡®Fus-194¡¯ and ¡®Fus-201¡¯). Twelve accessions were rated as highly to intermediately resistant to ¡®Fus-194¡¯ during the dry/moderate temperature season, whereas nine accessions were classified as highly to intermediately resistant to ¡®Fus-201¡¯. In the assay carried out in the wet and warm season, 72% of the accessions were classified as having high and intermediate resistance to ¡®Fus-194¡¯, and 32% were resistant to ¡®Fus-201¡¯. The accessions ¡®Santa Cruz-47¡¯, ¡®BR-2399¡¯ and ¡®BR-1449¡¯ were the most promising resistance sources.
%K Abelmoschus esculentus
%K germplasm characterization
%K genetic resistance
%K breeding.
%U http://www.sbmp.org.br/cbab/siscbab/uploads/bd53745c-8e82-e2cf.pdf