Superior Sorghum Genotypes Identified for Drought-Prone Areas

Strategic Insights -

Researchers from the Ethiopian Institute of Agricultural Research have identified superior sorghum genotypes that can enhance food security in dry lowland regions. The study focused on developing climate-smart sorghum varieties for moisture-stress areas in Ethiopia. By evaluating 42 sorghum genotypes, the researchers identified best-performing hybrids and inbred lines that exhibit improved yield and agronomic traits.

Key Takeaways:

  • The study identified five superior sorghum genotypes, including P-9534 x Melkam, B6 x ICRS-14, TX-623 x ICRS-14, P9511 x Melkam, and P-850341 x ICRS-14, with yield advantages of 32.49%, 24%, 23%, 21%, and 16.68% over the standard check (ESH-4) respectively.
  • Inbred lines P-9534 and P-9505 were identified as the best general combiners for plant height and days to flowering, while P-9501 and B5 were found to be the best general combiner parents for stay green.
  • The study demonstrated that non-additive gene action mainly controlled grain yield and panicle width, suggesting that heterotic breeding strategies should be used to develop superior sorghum hybrids.
  • The research concluded that seven drought-resistant and high-yielding hybrids, including TX-623 x ICRS-14, MARC3 x Melkam, MARC3 x ICRS-14, P-9511 x Melkam, P-850341 x ICRS-14, P-9534 x Melkam, and B6 x ICRS-14, would be utilized commercially after further investigation for stability and adaptability.

Statistics:

  • The study involved evaluating 42 sorghum genotypes in an alpha lattice design with two replicates.
  • The best-performing hybrids exhibited yield advantages of 32.49%, 24%, 23%, 21%, and 16.68% over the standard check (ESH-4).
  • Inbred lines P-9534 and P-9505 were identified as the best general combiners for plant height and days to flowering, while P-9501 and B5 were found to be the best general combiner parents for stay green.
  • Non-additive gene action was found to primarily control grain yield and panicle width in 5 out of 7 analyzed traits.

Sources:

  • Phenotyping and combining ability analysis of sorghum [sorghum bicolor (l) Moench] genotypes in dryland environments. Discover Sustainability, 2025,6(1):1-24.
  • NewsRx. Researchers from Ethiopian Institute of Agricultural Research Report Recent Findings in Sustainability Research [Phenotyping and combining ability analysis of sorghum [sorghum bicolor (l) Moench] genotypes in dryland environments]. Life Science Weekly. September 2, 2025; p 5548.