Fig. 1
From: Seed viability testing for research and conservation of epiphytic and terrestrial orchids
A–G Images of seeds of Cymbidium floribundum, one of the study species subjected to viability testing. A Fresh seeds prior to experimentation. B–D Results of viability tests; Evans blue test (EB), Fluorescein diacetate test (FDA) and Tetrazolium test (TTC) performed respectively, after sterilizing the seeds. E–G EB, FDA and TTC test performed respectively, without seed sterilization