Seed viability can be tested using a simple tetrazolium stain. References Caro,T.M and K. Laurenson. A Primer of Conservation Biology. Under the correct conditions, this species can go from seed to seed in as little as four weeks. B. rapa var.
Gibberellins are plant hormones which affect stem height and, in many species, promote germination.
Although the height differences between the wild and rosette varieties are well documented, we do not know if the lack of gibberellin in the rosette variety also slows the rate of germination. We also do not know if gibberellin from a wild plant can escape into the surrounding environment and influence the germination and growth of the rosette variety. A group could compare germination rates in wild and rosette varieties of B rapa . The group could also compare germination of isolated rosette seeds and rosette seeds in the presence of wild type seeds. References Campbell, N.E. 1993.