POTASSIUM FERTILIZATION INFLUENCE IN ANTHRACNOSE CONTROL INCOMMON BEAN

摘要

The common bean (Phaseolus vulgaris L.) crop is affected by more than 200 diseases, capable to narrow the production and decrease the product quality physiological, nutritional and commercial, including anthracnose. The bean anthracnose, caused by thefungus Colletotrichum lindemuthianum (Sacc. & Magnus), is one of the most serious bean diseases, affecting susceptible cultivars worldwide (Bianchini et al., 1989). Potassium has a big relation with the incidence reduction and diseases severity in plants, acting in the inoculum potential reduction (Huber and Amy, 1985). Thus, the research objective was evaluating the severity and the bean anthracnose control under different levels of potassium.