QUALIDADE DE GRÃOS DE FEIJÃO-COMUM CARIOCA SUBMETIDOS À DESSECAÇÃO E ARMAZENAMENTO

Abstract

Common beans are a legume of significant socioeconomic importance in Brazil. In beans, one of the most important steps for the success of the crop is obtaining quality grains and seeds. Therefore, all methods that can be used to preserve the quality of beans are beneficial, with emphasis on the use of desiccants for anticipating and planning the harvest. Thus, the present study aimed to evaluate the effect of desiccation on the morphological quality of common carioca bean seeds after harvest and storage. The experiment was carried out in the field at the Instituto Federal Goiano Campus Urutaí, in a 2x3 factorial scheme, in which the first factor corresponds to common carioca bean cultivars (IAC 2051 and BRS Estilo) and the second factor corresponds to desiccation management (diquat at a dose of 1.5 L ha-1 and diquat + carfentrazone at a dose of 1.5 + 0.1 L ha-1), in addition to controls without herbicide application. Productivity, 100-grain mass, and visual appearance of the grains post-harvest and after 30 days of storage were evaluated. The mixture of diquat + carfentrazone herbicides proved to be efficient for pre-harvest desiccation in both cultivars, as there was no darkening of the grains post-harvest or after 30 days of storage. The pre-harvest dessert with the diquat herbicide proved to be efficient for the IAC 2051 cultivar, with no darkening of the grains. The cultivar that proved to be the most productive was IAC 2051. There was no difference for the IAC 2051 cultivar with or without application for the parameters of 100-grain mass, visual appearance, and visual appearance 30 days after storage; however, there was for the productivity parameter, in which, with desiccation management, it obtained better results. There was no difference between the BRS Estilo cultivar with or without application for both parameters evaluated.