Newly Posted Articles

VIRUS CONTROL BY CHEMICALS: Control by Use of Lysol

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Medical disinfectants are useless against plant virus; moist heat, caustic solutions and several others are best. A68-617 Read More

COCKROACHES: Control in Shipped Pots

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Plants received from Florida had cockroaches in the pots; they can be killed with Diazinon or Baygon (propoxur). A77-619 Read More

POTTING: The Orchid Block System

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago As a potting mix it offered many advantages; refer to OA82-6Consisted of a styrofoam block shaped to fit inside regular pots, topped with shredded foam rubber and shredded long-fibered sphagnum mix... Read More

PELORIA: Its Occurrence

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago It can result as an upset in the developmental process, but also it is genetically determined; some forms are seemingly set- are regularly produced and constant in expression; probably ultimately i... Read More

PELORIA: Mutations in Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Lip-like characteristics in the petals are considered an abnormal regularity in normally irregular flowers, as in splash-petal cattleyas; causes are uncertain; may lead to advancement in breeding b... Read More

FANS: To Run Continuously in a High Humidity Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Suitable types can be purchased from the local electric supply house. A70-631; small fan heater controlled by time-clock can be used to boost morning temperature to 60 deg. F. for an hour or two. O... Read More

COKE: As Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago In gravel culture type of situation, coke as the supporting medium has advantage in its porosity, holding more solution than gravel or quartz or granite, but no better than haydite. A65-244 Read More

COLCHICINE CONVERSION: In the Future

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago To provide an available bank of high class breeding clones in cymbidiums; in cattleyas, to convert triploids to hexaploids (poor plants) for back crossing to tetraploids to achieve 5N or pentaploid... Read More

COLCHICINE: And Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Conversion rate to higher ploidy is more common than with other genera; the selection criteria is most important. AU80-49; FR90; OA78-16 Read More

COLCHICINE: And Dendrobiums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Doubling chromosomes in meristem culture; percent of concentrations required; number of days to induce doubling of chromosomes; other data; refer to NH73(2)-12+ Read More