Data/hora: 01/06/2024 02:46:26

Biblioteca(s): | Embrapa Soja.
Data corrente: | 06/04/2004
Data da última atualização: | 27/07/2007
Autoria: | HENNING, A. A.; KRZYZANOWSKI, F. C.; COSTA, N. P. da; LUZ, W. C. da.
Título: | Evaluation of bioprotectants for soybean seed treatment.
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. 90.
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: | The use of bioprotectors applied to seeds has raised the interest of the international community because of the hazards of chemical treatments to the environment. During the growing season of 2002/03, effects of 18 biological agents and three standard fungicides were evaluated on seedling emergence in the field, in Londrina, PR. Seeds of ´BRS 133' soybean cultivar were treated in plastic bags in the laboratory and sown in the field. Plots were 5 m long, with four rows and the seeding rate was 20 seeds per meter. The experimental design was a randomized complete block design (RCBD) with four replicates and the means were compared using the Tukey test at 5% level of probability. Of the three fungicides, the best seedling emergence (63,8%) was achieved with carbendazin (30g i.a) + thiram (70g i.a.) / 100 kg of seeds, followed by carboxin (50g i.a.) + thiram (50g i.a.) and metalaxyl (10g i.a.) + fludioxonil (35g i.a.), with 44,8% and 27.2% of seedling emergence, respectively. With bioprotectors, seedling emergence varied between 13,4% and 2.8%, whereas with untreated seeds (control) it was 4.4%. The results showed that the bioprotectants did not protect well the seed when there is inadequate soil moisture for germination and seedling emergence. Therefore, biological seed treatments could be used in organic soybean farming or in small farms, where sowing is usually done under adequate conditions of soil moisture content. However, for large commercial fields, it would not assure seed protection in the soil against seed rotting organisms, e.g. Aspergillus spp., that are very frequent under stressed soil moisture conditions.
Categoria do assunto: | --
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (23698-1) - UMT - PL - -- - RF 633.34072 - W927a -  - DIS