Newly Posted Articles

POLYGRAPH (LIE DETECTOR): Used on Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A polygraph expert (Cleve Backster) attached electrodes to leaves of plants (orchids not mentioned) and recorded reactions apparently related to emotional reactions; see Wall Street Journal, Feb.19... Read More

POLYMIN: Definition

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A coined word to denote the result of a cross between a miniature and a tetraploid, in contrast to a diploid standard. OA71-105 Read More

POLYPODIUM FIBER: Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A large genus of ferns; used in Australia successfully when handled properly; used before the advent of barks, etc. A76-773; AU79-198 Read More

POLYRRHIZA LINDENII: A Problem Plant

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Culture is the same as for vandas; keep it on the original host branch; place in a bright, ventilated spot; grows intermediate or warm; keep it wet. A79-1022 Read More

BEGINNERS: Best Plants for South Florida

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In South Florida the first choices would be vandas, cattleyas, ascocendas and dendrobiums (evergreen or cane types) and secondly would be oncidiums (particularly equitants) and phalaenopsis. F84-147 Read More

LEAVES: Whitish Build-up From Minerals in the Water

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Additive available to dissolve it: use mild detergent to help remove the deposit; an ion-exchange demineralizer is expensive; do not use water softener. A77-314 Read More

CATTLEYAS, BIFOLIATES: Breeding for Whites

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago If two whites are crossed and one has a C gene and the other an R gene the progeny will all be purple. F86-172 Read More

POLYSTYRENE: In Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Put it through a kitchen meat grinder if you have one, or cut it up with a knife, to produce granules or cubes and mix it 50/50 with bark for a good potting mix to achieve a non-soggy condition; a ... Read More

PORTLAND CEMENT: As Dessicant for Seed Storage

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Wrap some Portland cement powder in paper towelling and place in the bottom of a screw-capped jar with the seeds wrapped in tissue paper. A76-528 Read More

LIME: Oyster Shell, Its Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is calcium carbonate lime; ground up shells comes in coarse type for chicken scratch or flour type used by many orchid growers. C74-51 Read More