title: Reaction of Cauliflower Genotypes to Black Rot of Crucifers.
abstract: This study aimed to evaluate six cauliflower genotypes regarding their resistance to black rot and their production performance. To do so, it was conducted two field experiments in Ipameri, Goiás, Brazil, in 2012 and 2013. It was used a randomized block design, with four replications (total of 24 plots). Each plot consisted of three planting lines 2.5 m long (six plants/line), spaced 1.0 m apart, for a total area of 7.5 m(2). Evaluations of black rot severity were performed at 45 days after transplanting, this is, 75 days after sowing (DAS), and yield evaluations at 90 to 105 DAS. The Verona 184 genotype was the most resistant to black rot, showing 1.87 and 2.25% of leaf area covered by black rot symptom (LACBRS) in 2012 and 2013. However, it was not among the most productive materials. The yield of the genotypes varied between 15.14 and 25.83 t/ha in both years, Lisvera F1 (21.78 and 24.60 t/ha) and Cindy (19.95 and 23.56 t/ha) being the most productive. However, Lisvera F1 showed 6.37 and 9.37% of LACBRS and Cindy showed 14.25 and 14.87% of LACBRS in 2012 and 2013, being both considered as tolerant to black rot.
authors.affiliation: Laboratory of Plant Pathology, Goiás State University (UEG), Rodovia GO 330, km 241, Anel Viário, Setor Universitário, 75780-000, Ipameri, Goiás, Brazil.
authors.forename: Lincon Rafael
authors.initials: LR
authors.lastname: da Silva
authors.affiliation: Laboratory of Plant Pathology, Goiás State University (UEG), Rodovia GO 330, km 241, Anel Viário, Setor Universitário, 75780-000, Ipameri, Goiás, Brazil.
authors.forename: Renan César Dias
authors.initials: RC
authors.lastname: da Silva
authors.affiliation: Department of Plant Production, Federal University of Uberlândia (UFU), Av. João Naves de Ávila, 2121, Campus Santa Mônica, CP 593, 38408-100, Uberlândia, Minas Gerais, Brazil.
authors.forename: Atalita Francis
authors.initials: AF
authors.lastname: Cardoso
authors.affiliation: Laboratory of Plant Pathology, Goiás State University (UEG), Rodovia GO 330, km 241, Anel Viário, Setor Universitário, 75780-000, Ipameri, Goiás, Brazil.
authors.forename: Gláucia
authors.initials: G
authors.lastname: de Mello Pelá
authors.affiliation: Laboratory of Plant Pathology, Goiás State University (UEG), Rodovia GO 330, km 241, Anel Viário, Setor Universitário, 75780-000, Ipameri, Goiás, Brazil.
authors.forename: Daniel Diego Costa
authors.initials: DD
authors.lastname: Carvalho
keywords: Brassica oleracea var. botrytis; Xanthomonas campestris pv. campestris; disease resistance; plant breeding