Newly Posted Articles

ETHYLENE: Smoking Tobacco as a Source

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago There is considerable ethylene in a room where several people are smoking. A69-614 Read More

ETHYLENE: Testing for

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use small tomato plants which show a strong reaction to ethylene; the leaves bend downward from the stem, stiff but not wilted. A77-449 Read More

ETHYLENE: To Check for Presence in Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A laboratory test requiring a flame gas chromotography costs several thousand dollars; use young tomato plants, the response is unmistakable; the leaves grow down stiffly. A71-1102; A74-433 Read More

RAINWATER: Collected

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A particular roof area collects 2000 gallons of water with a one inch rainfall; it is stored in a 9000 gallon cistern; is electrically heated to 76 dF to temper it when being applied to the plants ... Read More

CONSERVATION: Code of Ethical Practice for Traders

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago To reduce the exploitation of wild-collected species: trade in nursery-raised plants and indicate such origin; encourage nurseries to propagate with seed; nurseries should resist the temptation to ... Read More

CONSERVATION: Gene Bank

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A proposal to establish a cryogenic seed bank; refer to A86-247; effects on seeds; beneficial results. OA88-24 Read More

CONSERVATION: Listing of Private Collections

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A proposed computer program to preserve as broad a genetic base as possible; in Britain. OR87-137 Read More

RANGAERIS: A Problem Plant

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Browning of the flowers follows their opening possibly caused by oxidation of phenols (which for some reason are being released into the tissues) to quinones; similar to the browning of a cut apple... Read More

HEATERS: Wood-burning Stove

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is apt to emit too much ethylene if it is not properly vented; burning wood is one of the worst sources of ethylene; it is now a crime to burn wood for heating purposes in London. A81-1436 Read More

BARK, REDWOOD: Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Shredded bark used as insulation material and sold as Palco Wool was treated with fire-retardant ammonium phosphate which caused remarkable growth of plants. A87-1041 Read More