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Fw: INFO: Native Plant Cultivars

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  • Brad Smith
    I think our discussion began with my forwarding a post from the native-plants list. That discussion continues and I m forwarding another message from that
    Message 1 of 1 , Apr 2, 2000
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      I think our discussion began with my forwarding a post from the
      "native-plants" list. That discussion continues and I'm forwarding another
      message from that list, in case anyone is interested.

      Brad

      -----Original Message-----
      From: Frosty Hollow Ecological Restoration <wean@...>
      To: native-plants@... <native-plants@...>;
      Stein@... <Stein@...>
      Date: Sunday, April 02, 2000 10:42 AM
      Subject: RE: INFO: Native Plant Cultivars


      >>Isn't there enough genetic drift in the natives so that one breeders wild
      >>type is not identical to another's? In that sense these would be
      cultivars.
      >>
      >>Katy Stein
      >
      >==============================================================
      >"Breeders" implies conscious atempts to manipulate the plants genetically.
      >A relevant definition:
      >
      >Cultivar. A contracton of a "cultivated variety". It refers to a
      >plant type within a particular cultivated species that is
      >distinguished by one or more characters; horticulturally, such plants
      >are of considerable economic importance.
      >
      >Variety. A subdivision of a species which differs as a group in some
      >minor definable characteristics from the rest of the species.
      >(Little and Jones. A Dictionary of Botany.1980.)
      >
      >Except in stuations involving conscious attempts to preserve or
      >increase (genetic) fitness in rare species or populations, conscious
      >breeding should (I think) be definitely considered undesirable for
      >providing propagules for restoraton.
      >
      >When wild plants are brought into cultivation there are concerns
      >about changes from the initial genetic compositon and diversity of
      >the source wild populations (or segments of populations) through
      >either random drift or selection pressure from agronomic practices
      >(i.e. conscious selection or breeding, irrigation, fertilization,
      >weeding, suppression of predators and diseases, spacing/density,
      >growing in monocultures, harvesting practices and methods, etc.).
      >Methods of reducing the selection pressure include minimizing
      >manipulation of the cultivated population, growing in conditions that
      >resemble wild environments (both abiotic and biotic influences), and
      >minimizing the number of generations in cultivation before starting
      >anew with wild stock.
      >
      >-Steve Erickson
      >
      >- - - - - - - - - - - - - - - - - - - - - - - - - -
      >-Steve Erickson
      >Frosty Hollow Ecological Restoration
      >Box 53, Langley, WA, USA 98260
      >Home phone/fax: (360) 579-2332
      >Office phone: (360) 221-7838 Office fax: (360) 221-2161
      >wean@...
      >To send a fax, simply send the fax.
      >After answering and hearing your fax screech, our phone will receive your
      fax
      >
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