What 1s Dormancy?
Despite the fact that many researchers study dormancy,
there is no unambiguous definition of the phenomenon, perhaps
because it is manifest and broken in different ways in
different species (Bewley and Black, 1994; Vleeshouwers et
al., 1995; Lange, 1996). For the sake of simplicity, seed dormancy
is regarded here as the failure of an intact viable seed
to complete germination under favorable conditions. The
seeds of some species are prevented from completing
germination because the embryo is constrained by its