Avaliação de variedades locais de mandioca indústria no Norte de Minas Gerais, em ambiente irrigado

Abstract

The evaluation of cassava varieties industry in an irrigated environment in the northern region of Minas Gerais is an activity lacking technical information. Therefore, the objective of this work was to evaluate, in three harvest seasons, five varieties of cassava already adapted to climatic conditions of the North of Minas Gerais, in an irrigated cultivation system. The experiment was carried out between November/2018 and November/2019, in an experimental area of the Federal Institute of The North of Minas Gerais, Campus Januária. The experiment was designed in randomized blocks, with three repetitions. Five local cassava genotypes for industry were evaluated: castelão, IAC-12, Canela de ema, Projetinho and Olho Roxo. The experimental plots were composed of four rows with ten plants, in spacing of 1.0 m between rows and 0.50 m between plants. Irrigation was by conventional sprinkler. The harvests took place at 8, 10 and 12 months of age of the plants. Characteristics, root yield, percentage of starch in the roots, yield and flour yield were evaluated. Data were submitted to individual and joint analysis of variance and to the mean grouping test. The results revealed that the Castelão variety stood out in relation to the others in terms of its agronomic performance, since it presented high average root productivity, high starch contents in the roots and, as a consequence, high flour yield, when harvested ten months after planting.