Abstract

Following the application of biotic and abiotic systemic resistance inducers, which are enzymes related to plant defense, different responses are observed after infection with pathogens. Research into alternative methods using resistance inducers is a promising tool in the search for products with high potential for pathogen control. The application of the inducers acibenzolar-S-methyl, citrus biomass, K phosphite, silicate clay, and Ca and Mg silicate with or without the fungicide carbendazim showed greater potential to reduce anthracnose caused by Colletotrichum truncatum in lima bean plants, resulting in a reduced area under the disease progress curve and disease index. Disease progression promoted changes in enzymatic activity, where the application of acibenzolar-S-methyl, citrus biomass, K phosphite, silicate clay, and Ca and Mg silicate with or without the fungicide carbendazim resulted in the highest enzymatic activities and gas exchange rates compared to the other inducers. The use of biotic (citrus biomass) and abiotic (acibenzolar-S-methyl, K phosphite, silicate clay, and Ca and Mg silicate) inducers showed the highest potential to control anthracnose in the lima bean variety UFPB04. However, the resistance inducers promoted different plant responses when combined with fungicides and when applied in plants cultivated in different regions.

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