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<p>In current study, three sugarcane genotypes, <i>viz.</i> NIA-98, NIA-0819, and BL4, were subjected to callus culture, followed by <i>in vitro</i> mutagenesis using four doses of gamma radiation (10, 20, 30, and 40 Gray (Gy)) for improvement of energy-related traits. The irradiation treatments resulted significant variation in the progeny population for all evaluated traits, including stalk height (131–457 cm) and tillering potential (5–11). NIA-0819 at 20&#xa0;Gy produced highest crop yield (91.67 t ha<sup>−1</sup>), while BL4 showed overall poor performance under both control and all irradiated conditions. Correlation studies showed that sugar yield was correlated with both quality-related and yield-contributing traits. Projections for bioenergy production indicated that mutant line NIA-0819 at 20&#xa0;Gy produced 990 L molasses-based bioethanol and 7700 L bagasse-based bioethanol. Moreover, this genotype generated 11.55 MWh electricity from bagasse alone and 25.29 MWh when bagasse, tops, and leaves were utilized in combination. The SSR analysis confirmed the extent of genetic diversity among the mutants while both similarity coefficient and dendrogram analyses supported that <i>in vitro</i> mutagenesis effectively induced genetic variations. These findings suggest that combinatorial use of callus culturing and mutagenesis can enhance genetic pool’s diversity and provide valuable breeding resources, particularly for improvement of novel energy-related traits subsequent to yield and sucrose.</p>

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Characterization of Sugarcane Genotypes for Bioenergy Production: Exploiting In Vitro Mutagenesis to Ameliorate Energy-Related Traits

  • 期刊论文

  • 发表日期：

    2026年3月23日

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  • Shafquat Yasmeen,
  • Sana Munir,
  • Muhammad Abu Bakar Jaffar,
  • Muhammad Tahir Khan,
  • Imtiaz Ahmed Khan

摘要

In current study, three sugarcane genotypes, viz. NIA-98, NIA-0819, and BL4, were subjected to callus culture, followed by in vitro mutagenesis using four doses of gamma radiation (10, 20, 30, and 40 Gray (Gy)) for improvement of energy-related traits. The irradiation treatments resulted significant variation in the progeny population for all evaluated traits, including stalk height (131–457 cm) and tillering potential (5–11). NIA-0819 at 20 Gy produced highest crop yield (91.67 t ha−1), while BL4 showed overall poor performance under both control and all irradiated conditions. Correlation studies showed that sugar yield was correlated with both quality-related and yield-contributing traits. Projections for bioenergy production indicated that mutant line NIA-0819 at 20 Gy produced 990 L molasses-based bioethanol and 7700 L bagasse-based bioethanol. Moreover, this genotype generated 11.55 MWh electricity from bagasse alone and 25.29 MWh when bagasse, tops, and leaves were utilized in combination. The SSR analysis confirmed the extent of genetic diversity among the mutants while both similarity coefficient and dendrogram analyses supported that in vitro mutagenesis effectively induced genetic variations. These findings suggest that combinatorial use of callus culturing and mutagenesis can enhance genetic pool’s diversity and provide valuable breeding resources, particularly for improvement of novel energy-related traits subsequent to yield and sucrose.