Glossary Terms

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These are the terms and descriptions for the Glossary
Weed mutation

Description

A permanent structural alteration in the DNA or RNA of a weed that affects all its offspring via seeds.

Synonyms: weed mutations
Weed shifts

Description

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