Fig. 4From: Stomata variation in the process of polyploidization in Chinese chive (Allium tuberosum)Epidermal layer of Chinese chive showing the stomatal number under fluorescent light (scan area = 850.2 μm × 850.2 μm). a Diploid. b Triploid. c Tetraploid. d Pseudopentaploid. e Pseudohexaploid. f Boxplots of stomatal number to compare different ploidy levels of Chinese chiveBack to article page