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National Science Standards Gametophyte development Student research questions Research in the classroom Research with C-Fern Brief description of C-Fern C-Fern manipulation Root tropism? |
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of C-Fern is supported by the National Science Foundation (NSF-DUE) |
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Copyright
© 1997-2000
Thomas R. Warne and Leslie G. Hickok. All rights reserved. |
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C-Fern
Web Manual - Observation and Analysis of Gametophytes
Hoyer's Medium
Dissolve Arabic gum completely in the distilled H2O. Then, and
only then, completely dissolve in Choral hydrate, then add glycerin and
mix well. Medium may be diluted when needed with small amounts of distilled
H2O. Before using Hoyer's medium, let it stand undisturbed for several
days in order to clarify. Store mixture at 4 C. CAUTION: Choral hydrate
is used as a hypnotic and sedative. Abuse may lead to habituation or addiction.
Some individuals are extremely sensitive to the vapor's of Hoyer's medium
and develop headaches, etc. |