Identification and evaluation of phenotypic characters and genetic diversity analysis of 1,558 foxtail millet germplasm resources for conservation and breeding.

The results demonstrated significant or highly significant correlations among most phenotypic traits; specifically, significant correlations were observed between single-spike weight and single-spike grain weight, as well as between grain a* and grain b. * Significant negative correlations were found between seedling-to-spike period and 1000-grain weight, and between seedling-to-spike period and leaf sheath color; weak correlations of varying degrees existed among other traits, indicating that most phenotypic traits in the foxtail millet accessions exhibited interactive and mutually reinforcing relationships.

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