Resistance of bioenergy sorghum to Diatraea saccharalis (Lepidoptera: Crambidae)

  • Octavio Gabryel Araújo UFLA - Estudante Mestrado
  • Simone Martins Mendes Embrapa Milho e Sorgo
  • Michelle Vilella Pos Doc - Embrapa Milho e Sorgo
  • Luis Cláudio Paterno Silveira Universidade Federal de Lavras
  • Maria Lucia Ferreira Simeone Embrapa Milho e Sorgo
  • Marcus Antonio Matiello Fadini Universidade Federal de São joão Del Rei
  • Rafael Augusto da Costa Parrella Embrapa Milho e Sorgo
Keywords: Cell wall, Stem borer, Sorghum pest, Sweet sorghum, High biomass sorghum

Abstract

This study evaluated the effects of the sugarcane borer Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) on cultivars of sweet and biomass sorghum for the selection of resistant cultivars. The present work consisted of two trials, with natural pest infestation. In the first one, 10 sweet sorghum cultivars were analyzed for the following variables: plant height, number of healthy and damaged internodes, gallery position and size, stem infestation level and soluble solids content (°Brix). In the second trial, it was analyzed 16 genotypes of high biomass sorghum, with the same variables above mentioned, in addition to the lignin, cellulose and hemicellulose contents. Among sweet sorghum genotypes evaluated, the genotype CMSXS647 stood out due to the traits: plant height, infestation level, gallery size and soluble solids content. Among the sorghum genotypes evaluated, CMSXS7030, CMSXS7012 and CMSXS7028 presented ideal characteristics for infestation level, plant height and number of lignocellulosic compounds. Such information, in addition to supporting the bioenergy sorghum breeding program, will assist in integrated pest management for sorghum cultivation.

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Author Biographies

Octavio Gabryel Araújo, UFLA - Estudante Mestrado
Departamento de Entomologia
Luis Cláudio Paterno Silveira, Universidade Federal de Lavras
Departamento de Entomologia
Marcus Antonio Matiello Fadini, Universidade Federal de São joão Del Rei

Campus Sete Lagoas

Published
2019-06-12
How to Cite
Araújo, O. G., Mendes, S. M., Vilella, M., Silveira, L. C. P., Simeone, M. L. F., Fadini, M. A. M., & Parrella, R. A. da C. (2019). Resistance of bioenergy sorghum to Diatraea saccharalis (Lepidoptera: Crambidae). Bioscience Journal, 35(4). https://doi.org/10.14393/BJ-v35n4a2019-41770
Section
Agricultural Sciences