Title:	Resistance of bmr energy sorghum hybrids to sugarcane borer and fall armyworm.
Authors:	SOUZA, C. S. F. SOUZA, B. H. S. PARRELLA, R. A. da C. SIMEONE, M. L. F. NASCIMENTO, P. T. FRANÇA, J. C. O. LIMA, P. F. MENDES, S. M.
Affiliation:	Universidade Federal de Lavras; Universidade Federal de Lavras; RAFAEL AUGUSTO DA COSTA PARRELLA, CNPMS; MARIA LUCIA FERREIRA SIMEONE, CNPMS; Universidade Federal de Lavras; Universidade Federal de Lavras; Universidade Federal de São João del-Rei; SIMONE MARTINS MENDES, CNPMS.
Date Issued:	2024
Citation:	Brazilian Journal of Biology, v. 84, e251883, 2024.
Description:	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.
Thesagro:	Sorgo Praga de Planta Cana de Açúcar Diatraea Saccharalis Spodoptera Frugiperda
Keywords:	Resistência de planta
DOI:	https://doi.org/10.1590/1519-6984.251883
Notes:	Publicado em: 26 nov. 2021.
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPMS)