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Energy production from sorghum bioethanol is a way to help decrease climate change and environmental degradation. The objective of this work was to evaluate the agronomic characteristics associated to bioethanol production in experimental genotypes of sweet sorghum. During 2013 and 2014, seventeen sweet genotypes were evaluated in two locations, this locations are situated in northeastern Mexico, under a complete block randomly design with three replications. The three experiments were executed in Estacion Cuauhtemoc, Tamaulipas, in dryland; and two in Marin, Nuevo León, under irrigation. Experimental hybrid Potranca x Keller (p≤0.05) presented the highest values (kg/ha) in: biomass weight (52 125), stem (39 650), panicle (4550), leaf (7700), juice (14 125), and bioethanol (2157 l/ha); it surpassed to the most productive control (Keller) in: 35,7, 32,5, 63,2, 41,6, 32,5, and 36,8%, respectively. It bloomed 6.8 days earlier than variety control. Experimental variety 17-1-1-1 had a minor foliar incidence of diseases in comparison to Keller. In addition, it presented agronomic characteristics similar to control in: biomass weight (44 375 kg/ha), stem (35 438 kg/ha), panicle (2488 kg/ha), leaf (6400 kg/ha), juice (11 750 kg/ha), plant dry weight (19 113 kg/ha), stem dry weight (14 888 kg/ha), bioethanol production (1929 l/ha), °Brix (15,2), days to flowering (80,8) and plant height (224 cm). La producción de energía a partir de bioetanol de sorgo, es una manera de ayudar a aminorar el cambio climático y el deterioro del ambiente. El objetivo del trabajo fue evaluar las características agronómicas asociadas a la producción de bioetanol en genotipos experimentales de sorgo dulce. Durante los años 2013 y 2014 se evaluaron diecisiete genotipos dulces en dos localidades del noreste de México, bajo un diseño de bloques completos al azar con tres repeticiones: tres experimentos en la Estación Cuauhtémoc, Tamaulipas, en temporal; y dos en Marín, Nuevo León, en riego. El híbrido experimental Potranca x Keller obtuvo los valores más altos (p≤0,05) (kg/ha) en: peso de biomasa (52 125), de tallo (39 650), de espiga (4550), de hoja (7700), de jugo (14 125) y de bioetanol (2157 l/ha); y superó al testigo más productivo (Keller) en: 35,7, 32,5, 63,2, 41,6, 36,8 y 32,5%, respectivamente. Además, fue 6,8 días más precoz en cuanto a la floración que el testigo. La variedad experimental 17-1-1-1 se identificó con menor incidencia a enfermedades foliares que Keller. Además, presentaron características agronómicas similares al testigo en: peso de biomasa (44 375 kg/ha), de tallo (35 438 kg/ha), de espiga (2488 kg/ha), de hoja (6400 kg/ha), de jugo (11 750 kg/ha), peso seco de planta (19 113 kg/ha), peso seco de tallo (14 888 kg/ha), producción de bioetanol (1929 l/ha), °Brix (15,2), días a floración (80,8) y altura de planta (224 cm).

The objective of the study was to evaluate the agronomic performance of A, B isogenic lines and R grain sorghum lines which restore androfertility of sorghum for grain production. This work was performed during the spring-summer 2010 in Marin Nuevo Leon under drip irrigation. Days to flowering, seed yield per plant, brix degrees and weight of 1000 seeds were measured. The statistical analysis with the benchmark test of averages with independent samples was realized in A, B sorghum lines to days to flowering, seed yield per plant, brix degrees and weight of 1000 seeds. In R lines the analysis of variance and DMS (P