ArticleFrontiers in plant science2026
Multilevel analysis of salt stress responses in sorghum during seed germination.
Article in Frontiers in plant science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
A significant number of crop species and their associated agricultural landscapes are impacted by soil salinity, which severely hampers germination and seedling establishment. Developing salt-tolerant germplasm and improving screening methods are critical priorities for plant breeding programs. This study used sorghum as a model to evaluate germination and early growth responses in 100 accessions under control and 150 mM NaCl conditions. Multiple indices were used to develop a numeric salt tolerance score (STS), minimizing baseline growth effects to better reflect true stress responses. Multivariate approaches, including PCA, cluster analysis, and machine learning, were employed to assess salt tolerance. Salt stress significantly reduced germination traits such as germination index, rate, and vigor. The STS proved effective in ranking accessions for salt tolerance. Salt-tolerant accession showed upregulation of ion transport and homeostasis genes (
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