Data/hora: 02/06/2024 02:49:39

Biblioteca(s): | Embrapa Soja.
Data corrente: | 06/04/2004
Data da última atualização: | 27/07/2007
Autoria: | KLINGELFUSS, L. H.; YORINORI, J. T.; DESTRO, D.
Título: | Identification methods for resistance in soybean to Fusarium solani f. sp. glycines, under greenhouse conditions.
Ano de publicação: | 2004
Fonte/Imprenta: | In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004.
Páginas: | p. 79.
Série: | (Embrapa Soja. Documentos, 228).
Idioma: | Inglês
Notas: | Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.
Conteúdo: | Sudden death syndrome (SDS) caused by Fusarium solani f. sp. glycines has became one of the most important diseases in soybean due to significant yield losses and control limitations. Control has been possible by means of resistant genes. This work aimed to identify efficient methods of inoculation to assess the genetic resistance of genotypes of soybean to SDS. Two experiments were arranged in a randomized block design (RBD). The former consisted of six treatments and 12 replicates and the latter, six treatments and 16 replicates. Each plot was constituted of a plant pot containing one plant of the cultivar FT Estrela, witch is highly susceptible to SDS and another plant of the cultivar Conquista, which is moderately resistant. The plants were assessed in relation to incidence and severity of SDS, on every three days, for fifteen days, starting from the fifteenth day of emergence. From the data obtained, the area under the disease progress curve (AUDPC) was estimated for the treatments. The inoculations with grains of sorghum and corn were the most effective in causing the appearance of the disease, in the first experiment. Inoculations with corn kernels were the most effective method in causing the disease, in the second experiment. However, only the inoculation with corn kernels permitted a separate reaction of genotypes in relation to SDS resistance, according to Tukey test (P<0,05), in both experiments. Thus, the inoculation with corn kernels can be recommended to reaction assessments of soybean genotypes to SDS under greenhouse conditions.
Categoria do assunto: | --
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (23691-1) - UMT - PL - -- - RF 633.34072 - W927a -  - DIS