When checking pollen sizes it is best to compare the pollen of the diploid version of Texas Kaleidoscope with the pollen from the tetraploid conversion of Texas Kaleidoscope. When the comparison is done between the diploid version and the tetraploid conversion of the same cultivar then the pollen of the tetraploid version will be larger by about 30% in any dimension. The same thing applies to comparing the size of the pollen of the diploid version of Super Fancy Face with the pollen of the tetraploid conversion of Super Fancy Face.
You can also check the sizes of the stomatal guard cells in the same way. These are on the leaves and are available whenever the plants have green leaves and not just when they are in flower as is the case for pollen.
