Induction of Tetraploids from Petiole Explants through Colchicine Treatments in Echinacea purpurea L.

Table 5

Comparison of stomata size between diploid and tetraploid plantlets.

Ploidy level of plant	Stomata length (𝜇m)	Stomata width (𝜇m)
Diploid	104.519 b*	90.741 b
Tetraploid	144.810 a	111.758 a

*Data in the same column followed by different letters are significantly different by Duncan’t test at 5% level.