highly significantp < 0.01
As shown in Table 1 , there were highly significant differences ( p < 0.01) in the polar axis length, equatorial axis length, P/E ratio, and the volume index of pollen among the 46 germplasm resources.
As shown in Table 1 , there were highly significant differences ( p < 0.01) in the polar axis length, equatorial axis length, P/E ratio, and the volume index of pollen among the 46 germplasm resources.