There is no universal standard plant test used by
testing agencies, although the OECD guideline No. 208 (OECD,
1984a) is often quoted for soil contaminants and the USAEPA OPPS
guidelines are utilised specifically for plant protection products. The
plant testing conditions are based on a combination of the OECD
guideline, and a comprehensive guideline published by the American
Society for Testing and Materials (ASTM
1994, # E1598-94).
||Emergence, growth, and survival is
monitored in the native New Zealand species kaka beak (Clianthus
puniceus); in millet (Panicum milliaceum), which has
a known sensitivity to organic compounds (Wang
1987); and lettuce (Lactuca sativa), which has a
known sensitivity to metals (Gorsuch
et al. 1990).