Aptidão agroindustrial de genótipos de Sorgo Sacarino na região Sul do Estado do Tocantins.

Abstract

Sweet sorghum (Sorghum bicolor L. Moench) is a rustic agricultural species, with good adaptation in different evaluation environments. The objective of this work was to evaluate the performance of agronomic traits of different sweet sorghum genotypes in the State of Tocantins. The experimental design used was the triple lattice in a factorial scheme (5 x 5), with 25 treatments with three replications. The treatments consisted of 25 sweet sorghum genotypes, 1 early commercial BRS 511 (76 DPF) and 24 late hybrids, which are: CMSXS5016 (83 DPF), CMSXS5028 (84 DPF), CMSXS5027 (84 DPF), CMSXS5030 (85 DPF), CMSXS5017 (89 DPF), CMSXS5039 (89 DPF), CMSXS5019 (89 DPF), CMSXS5029 (91 DPF), CMSXS5035 (92 DPF), CMSXS5037 (96 DPF), CMSXS5036 (97 DPF), CMSXS5044 (97 DPF) , CMSXS5045 (98 DPF), CMSXS5040 (98 DPF), CMSXS5038 (99 DPF), CMSXS5042 (103 DPF), CMSXS5041 (105 DPF), CMSXS5043 (105 DPF), CMSXS5046 (105 DPF), CMSXS5022 (111 DPF), CMSXS5021 (112 DPF), 202026B022 (115 DPF), CMSXS5020 (115 DPF) and 202026B021 (120 DPF), belonging to the improvement program of Embrapa Milho and Sorghum. The cultivar BRS 511, with an early maturation cycle, flowered at 76 days, being the earliest. The latest was the 202026B021 genotype. The highest plant height was observed in the CMSXS5042 genotype with a value of 4.98 m and the lowest average height was observed in the BRS 511 genotype with a value of 2.59 m. The CMSXS5021 genotype had the highest dry mass weight value with 41.3 g. The lowest value was the CMSXS5020 genotype. The highest productivity was obtained in the CMSXS5037 genotype with 156 ton ha-1. Cultivar BRS 511 was the least productive with 66 ton ha-1. The CMSXS5036 genotype reached the highest total soluble solids content at 21% °Brix. The lowest value was the CMSXS5020 genotype with 13% °Brix. The genotypes CMSXS5019, CMSXS5029, CMSXS5035, CMSXS5037, CMSXS5044, CMSXS5045, CMSXS5040, CMSXS5038 and CMSXS5042 stood out, within the other days, considering that they presented the ideal averages for having the ideal characteristics. flowering. Key-words: Sorghum bicolor. Selection. Productivity. Sugar content. Tropical condition.