Fig. 6From: Optimal protocol for in vitro polyploid induction of Cymbidium aloifolium (L.) SwChromosome number from root tip cell of C. aloifolium after culture in solid colchicine medium at different concentrations and durations. Treatments with 0.03% and 0.04% colchicine for 8 weeks incubation duration were tetraploid (4n = 80), while all other treatments were diploid (2n = 40) (scale = 10 µm)Back to article page