EFFECTS OF SOIL TILLAGE SYSTEM AND CROP ROTATION ON DRY BEAN ROOT ROT SEVERITY

• Autor(a) principal: Berni, Rodrigo Fascin
• Data de Publicação: 2007
• Outros Autores: Silveira, Pedro Marques da, Costa, Jefferson Luís da Silva
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Tropical (Online)
• Texto Completo: https://revistas.ufg.br/pat/article/view/2408
• topic: Rhizoctonia solani; Fusarium solani f. sp. haseoli; cropping practices; fungi; Rhizoctonia solani; Fusarium solani f. sp. phaseoli; práticas culturais; fungos

Dry bean root rot is caused by the fungi Rhizoctonia solani Kühn and Fusarium solani f. sp. phaseoli Snyd. & Hans.The effects of the interaction between soil tillage systems andcrop rotation on the severity of root rot was tested. The soiltillage systems consisted of plough+harrow (P1), plough (P2),harrow (P3) and no tillage (P4) and the crop rotation treatmentswere rice-bean (R1), corn-bean (R2), rice/Calopogonium muconoides-bean (R3) and corn-bean-corn-bean-rice-bean (R4). The severity of F. solani f. sp. phaseoli was evaluated 25 days after planting. The interaction was significant for this variable. The higher severity was under R3 with soil tillage system treatment P1. The lowest severity was under interaction R2 with soil preparation P3. Significant differences were found in the severity of the disease caused by R. solani. Soil tillage system P3 presented significantly higher disease severity than P4, whereas rotation R3 presented significantly higher disease severity when compared to other treatments. KEY-WORDS: Rhizoctonia solani, Fusarium solani f. sp. haseoli; cropping practices; fungi.