Physically damage tree/shrub seeds before sowing: brackish/saline wetlands
Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
Background information and definitions
Damaging, weakening or softening the coating of seeds before planting can help to break seed dormancy and encourage germination. For species with physical dormancy, damage to the seed coat can increase its permeability to water and gases, which are essential for germination. For a database of seed dormancy class by species, see Baskin & Baskin (2014).
This action includes mechanically damaging seeds (e.g. by rubbing them with sandpaper or nicking them with a knife) and removing excess tissues from around the seed (e.g. the sac-like perigynia around sedge seeds). To be summarized as evidence for this action, studies must have explicitly compared the performance of treated and untreated seeds. Studies that simply report the performance of treated seeds are not summarized here. Studies do not have to be in flooded/saturated soils, as long as they involve wetland-characteristic species.
Baskin C.C. & Baskin J.M. (2014) Seeds: Ecology, Biogeography and Evolution of Dormancy and Germination, Second Edition. Academic Press.