“…Recent decades have seen important changes in some sugarcane mills from solely producing sucrose and molasses to a multi-purpose operation to include other value-added products. Thus, apart from burning, bagasse can also be used to produce cellulosic ethanol or other biofuels (Amarasekara, 2014;Carvalho-Netto et al, 2014). The potential of this new discovery has sparked substantial investment in this technology in countries such as the United States, Canada, Brazil, and the European Union since its efficiency will be even greater when compared with the current technology of producing ethanol from sucrose (Aguiar et al, 2015).…”
Sugarcane production benefitted from useful genes imparted from Saccharum spontaneum L. Interspecific hybrids were evaluated for sugar and biomass traits in three environments, including two plants and one ratoon crop. The objective was to estimate genetic parameters for traits in this population and to develop appropriate breeding strategies and germplasm for use in variety development in both the sugar and bioenergy industries. Heritability was highest with all three environments considered; however, the increase was minimal compared with estimates from the first ratoon crop suggesting resources will be better spent selecting in the first ratoon crop. Significant differences (p < 0.05) found among families for sucrose content related traits, warrants selecting first among families before selecting among genotypes within families for these traits. The same was not true for cane yield and cane yield components. Heritability was low to moderate (> 0.3 < 0. 47) for cane yield its components, and high (> 0.7) for all other traits suggesting early selection in small plots could emphasize sucrose content related traits. Selecting intensely for a highly heritable trait in one stage can influence genetic variation of another trait in subsequent stages. Therefore, multivariate selection methods were employed which identified groups of genotypes with characteristics distinct to both industries. The S. spontaneum parents dominated trait variation in the hybrid population. Consequently, whereas genotypes with potential for the sugar industry would have to undergo rounds of backcrossing to recover good sugar characteristics, genotypes with immediate potential in the bioenergy industry were easily identified in this population.This article is protected by copyright. All rights reserved
“…Recent decades have seen important changes in some sugarcane mills from solely producing sucrose and molasses to a multi-purpose operation to include other value-added products. Thus, apart from burning, bagasse can also be used to produce cellulosic ethanol or other biofuels (Amarasekara, 2014;Carvalho-Netto et al, 2014). The potential of this new discovery has sparked substantial investment in this technology in countries such as the United States, Canada, Brazil, and the European Union since its efficiency will be even greater when compared with the current technology of producing ethanol from sucrose (Aguiar et al, 2015).…”
Sugarcane production benefitted from useful genes imparted from Saccharum spontaneum L. Interspecific hybrids were evaluated for sugar and biomass traits in three environments, including two plants and one ratoon crop. The objective was to estimate genetic parameters for traits in this population and to develop appropriate breeding strategies and germplasm for use in variety development in both the sugar and bioenergy industries. Heritability was highest with all three environments considered; however, the increase was minimal compared with estimates from the first ratoon crop suggesting resources will be better spent selecting in the first ratoon crop. Significant differences (p < 0.05) found among families for sucrose content related traits, warrants selecting first among families before selecting among genotypes within families for these traits. The same was not true for cane yield and cane yield components. Heritability was low to moderate (> 0.3 < 0. 47) for cane yield its components, and high (> 0.7) for all other traits suggesting early selection in small plots could emphasize sucrose content related traits. Selecting intensely for a highly heritable trait in one stage can influence genetic variation of another trait in subsequent stages. Therefore, multivariate selection methods were employed which identified groups of genotypes with characteristics distinct to both industries. The S. spontaneum parents dominated trait variation in the hybrid population. Consequently, whereas genotypes with potential for the sugar industry would have to undergo rounds of backcrossing to recover good sugar characteristics, genotypes with immediate potential in the bioenergy industry were easily identified in this population.This article is protected by copyright. All rights reserved
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