Figure 1.

Seed and seedling size differences and seed viability tests between Panicum hallii upland (HAL2) and lowland (FIL2) representative genotypes. Panel A shows the representative differences in seed size between parental lines based on 10 random seeds for both parental lines. Panel B shows seedling growth differences for these parental lines at 10 days from the day of first germination. The upland ecotype grew larger than the lowland ecotype in both belowground and above ground biomass. Panel C shows the result of seed viability test between hallii (HAL2, red) and filipes (FIL2, blue). Ungerminated seeds were tested for germination by removing seed coats. The Y‐axis corresponds to the percent of germinated seeds and the X‐axis provides the genotype information. HAL2 has a higher germination rate compared to FIL2 if seed coats are removed.