Heterosis for Ethanol Yield and Yield Components in Sweet Sorghum

The improvement of sweet sorghum for biofuel traits is gaining attention globally because of its promising role in the growth and sustainability of the ethanol production chain. The aim of this study was to assess the heterosis on ethanol yield and related agro-industrial traits in sweet sorghum und...

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Published inSugar tech : an international journal of sugar crops & related industries Vol. 23; no. 2; pp. 360 - 368
Main Authors Durães, Nayara Norrene Lacerda, Nunes, José Airton Rodrigues, Bruzi, Adriano Teodoro, Lombardi, Gabrielle Maria Romeiro, Fagundes, Talieisse Gomes, Parrella, Nadia Nardely Lacerda Durães, Schaffert, Robert Eugene, Parrella, Rafael Augusto da Costa
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.04.2021
Springer
Springer Nature B.V
Subjects
Acetaldehyde
Agriculture
Alcohol
Alcohol, Denatured
Biofuels
Biomass energy
Biomedical and Life Sciences
Cytoplasmic male sterility
Ethanol
Heterosis
Hybrids
Life Sciences
Male sterility
Research Article
Sorghum
Hybrid breeding
Cytoplasm male sterility
Restorer line
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Summary:The improvement of sweet sorghum for biofuel traits is gaining attention globally because of its promising role in the growth and sustainability of the ethanol production chain. The aim of this study was to assess the heterosis on ethanol yield and related agro-industrial traits in sweet sorghum under tropical conditions. Thirty hybrids were generated from a partial diallel scheme using three juicy stem non-sweet female lines (A) with cytoplasmic male sterility crossed with ten sweet sorghum male fertile restorer lines (R). The hybrids, parental lines, and two checks were evaluated in three environments in Brazil. Heterosis in sweet sorghum was observed for ethanol yield (ETH) and several yield components. Four hybrids showed positive heterosis on the R-line basis for ETH. The heterosis was higher for PH (plant height), GMP (green or fresh biomass production), and tons of brix per hectare. The parental A and R-lines diverged in contributing to the heterosis. The lines BR008A and CMSXS644R have been highlighted for ethanol yield and can be included in future A and R-line development.
ISSN:0972-1525
0974-0740
0972-1525
DOI:10.1007/s12355-020-00909-9