Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/49075
Title: Resistance of bmr energy sorghum hybrids to sugarcane borer and fall armyworm
Other Titles: Resistência de híbridos de sorgo energia bmr à broca-da-cana-de-açúcar e lagarta-do-cartucho
Keywords: Plant - Resistance
Energy sorghum
Diatraea saccharalis
Spodoptera frugiperda
Plantas - Resistência
Sorgo - Resistência
Issue Date: 2021
Publisher: Instituto Internacional de Ecologia
Citation: SOUZA, C. S. F. et al. Resistance of bmr energy sorghum hybrids to sugarcane borer and fall armyworm. Brazilian Journal of Biology, São Carlos, v. 84, e251883, 2024. DOI: https://doi.org/10.1590/1519-6984.251883.
Abstract: The lower lignin content in plants species with energy potential results in easier cellulose breakdown, making glucose available for ethanol generation. However, higher lignin levels can increase resistance to insect attack. The objective of this work was to evaluate the susceptibility of a bmr-6 biomass sorghum (a mutant genotype with a lower concentration of lignin) to important pests of energy sorghum, Diatraea saccharalis and Spodoptera frugiperda. Experiments were performed in the laboratory and greenhouse to evaluate the development of these pests on the biomass sorghum bmr hybrids BR007, BR008, and TX635 and their respective conventional near-isogenic genotypes (without the bmr gene). The lignin content was higher in non-bmr hybrids, but the evaluated insect variables varied between treatments, not being consistent in just one hybrid or because it is bmr or not. The lowest survival of S. frugiperda was observed in the BR008 hybrid, both bmr and non-bmr. The S. frugiperda injury scores on plants in the greenhouse were high (>7) in all treatments. For D. saccharalis, there was no difference in larval survival in the laboratory, but in the greenhouse, the BR007 hybrid, both bmr and non-bmr, provided greater survival. Due the need to diversify the energy matrix and the fact that greater susceptibility of the bmr hybrids to either pests was not found in this study, these results hold promise for cultivation of these biomass sorghum hybrids for the production of biofuels.
URI: http://repositorio.ufla.br/jspui/handle/1/49075
Appears in Collections:DEN - Artigos publicados em periódicos

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