Produtividade e qualidade do caldo de cultivares de sorgo sacarino em função da aplicação de herbicidas

Abstract

The utilization of saccharine sorghum as additive activity in the sugar and alcohol production system has been extensively studied. Amongst the hindrances related to the cultivation of crops in succession is the weed management by means of herbicides, mainly due to the lack of information about the selectivity of the products to culture. In this sense, this work aimed to evaluate the effect of 24-D, Atrazine, Bentazon, Linuron and Tembotrione on agronomic and technological characteristics of six sweet sorghum cultivars (BRS: 501, 504, 506, 508, 509 and 511). The experiment was in blocks at random, arranged in split plots, with four repetitions. The herbicides were applied in the post emergence period, when the plants presented four or five leaves. At the Physiological maturation, the plants were harvest and it was realized by the analysis of production of the green biomass, the plant height, diameter of the culm, phytotoxicity, volume and weight of the broth and degrees Brix. The Bentazon herbicide was selective on the BRS 504, 506 and 508 sorghum cultivars, as Atrazine was selective on the BRS 504 and 506 cultivars. The herbicide 2.4-D was selective on the BRS 509 cultivar. Linuron and Tembotrione were not selective on any evaluated cultivars.