definitions of groups

[DrSuess]

Hello.
I have been reading about diversity across groups and keep seeing the same terms used but with apparent different definitions.
Could anybody direct me to the biological and genetic definitions of:

landrace
breed
other relevant labels

Reference and citations appreciated.
Thank you

 

[Aqueous Id]

http://en.wikipedia.org/wiki/Landrace

http://en.wikipedia.org/wiki/Breed

So what are you working on?

 

[Hercules Rockefeller]

Section 21: What's in a Name: A Closer Look at Heritage Variety Definition in "Agrobiodiversity Conservation: Securing the Diversity of Crop Wild Relatives" by Nigel Maxted contains a discussion of “landrace diversity” from a botanical perspective.