- Weed mutation
A permanent structural alteration in the DNA or RNA of a weed that affects all its offspring via seeds.Synonyms: weed mutations
- Weed shifts
A change in the weed community within a field i.e. relative abundance or type of weeds. This can be the result of a management practice like herbicide use or any other phenomenon that brings about a change in weed species composition. Species or biotypes adapted to current weed management practices increase, whereas weeds susceptible to those practices decrease.
Authoritative On-line References and Resources
http://www.weeds.iastate.edu/mgmt/qtr00-1/popdyn.htm A classic article on weed population dynamics on the Iowa State University Weed Science website.Synonyms: shifts in weed, weed shifts