Category: Propagation

FLASKS: Best Time for Removal of Seedlings

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Move cattleyas and phalaenopsis to compot when seedlings are about one-inch; they are easily handled; smaller ones have been successfully transplanted, but the larger ones have a better chance of s... Read More

SEEDS: Germination

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Their metabolism and need for fungal symbionts; suitablity of sugars and other carbohydrates; other data; refer to W10-263 Read More

MERISTEM CULTURE: Without a Laboratory

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago An easily learned technique using a dissecting microscope (if you just happen to have one handy), a bunsen burner or other flame (it must be in a chem lab) plus a few needles and some household ble... Read More

MERISTEMING: Mutations Arising

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Millions of plants were run off in an experiment and almost all were true to type, so mutations were extremely few in that case: one run of 20,000 plants produced 99.99% true; refer to W9-223 Read More

MERISTEMING: Of Cattleyas, Using Alternatives

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Other media and methods, such as enhanced axillary branching are explained to obtain explants to place first into a Starting Solution, then a Short Multiplication Medium, then into a Resting Medium... Read More

FLASKING FORMULAS: With Fungicides and Bactericides Included

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For the results of tests on the possible toxic effects of pesticides included in the flasking media, refer to W9-179 Read More

FLASKING: For the Amateur

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Australian style, refer to AU79-133+ Read More

FLASKING: Roots Do Not Penetrate the Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago This may happen because the stopper is too tight and eliminates gas exchange between inside and outside of the flask. F82-175 Read More

MERISTEMING: Variable Success Rates

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The success rate in 1984 for odontoglossums was only about 25% but for oncidiums and miltonias it was over 90%. OA84-6 Read More

SEED BANKS: Cryogenic Gene Bank

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago At the University of California, Irvine, CA 92717, the Arboretum is developing facilities for preserving seed for the distant future; it requires assistance. A86-249 Read More