The Target Plant Concept—A History and Brief Overview
The target plant concept originated with morphological classification of conifer nursery stock in the 1930s, and the concept was enhanced through physiological research and seedling testing towards the end of the century. Morphological grading standards such as shoot height, stem diameter, and root mass are the most common use of the target plant concept, and some physiological grading standards are also being operationally implemented by nursery workers and seedling users. Since 2000, the concept has been expanded to include all types of plant materials, including seeds, cuttings, or wildlings, as well as traditional nursery stock. Because these native plant materials are being outplanted on harsh, severely disturbed sites, this more comprehensive native plant materials concept also involves environmental conditions on the project site.
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Publication: National Nursery Proceedings - 2010
Event:
Joint Meeting of the Western Forest and Conservation Nursery Association and Forest Nursery Association of British Columbia Target Seedling Symposium
2010 - Portland, Oregon