Darwinian agriculture

Can understanding evolution improve agriculture?  Plant and animal breeders will make faster progress if they recognize that natural selection has been improving drought tolerance and disease resistance for millions of years.  Many biotech ideas, like turning inducible defenses on all the time, have already been tested and rejected by natural selection.  However, some tradeoffs rejected by past natural selection may be acceptable to us.  For example, given irrigation, deep rooting may be less important.  Weeds and pests will continue to evolve, but we can sometimes slow this process, extending the useful life of our control methods.