Category: Propagation

COLCHICINE: In Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A common laboratory mutagen it can be used on sterile plant materials to double the number of chromosomes; the present confusion about conversion analyzed; refer to OR81-171 Read More

COLCHICINE: And Vandas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Induction of polyploidy; 0.1% of solution used in test; 29% of plantlets converted to tetraploid. NH73(2)19 Read More

INTERGENERICS: Breeding Problems

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The more genera involved the more troublesome the seedlings, like Alicearas. OR87-187 Read More

INTERGENERICS: Hybrids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Meaning, composed of three or more genera; over 70 complex genera are now registered in the odontoglossum-oncidium-mi 1tonia alliance, refer to A83-568; 809; 1062 Read More

COLCHICINE: What it Is

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A chemical extracted from the autumn crocus; it inhibits formation of wall matter between two cells giving cells with double normal number of chromosomes. A78-606; comparative experiment reviewed; ... Read More

MERISTEMMING: For the Novice

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For techniques, etc. refer to A68-671+ Read More

DEFLASKING: Cymbidium Seedlings

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Flask is first broken open, seedlings are placed in warm water and agar washed off the roots; they are graded by size, planted in fresh, healthy sphagnum., moss and covered with plastic. AU80-221 Read More

DEFLASKING: Cymbidum Seedlings

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Remove from flask, wash carefully, plant in sterilized sand at the rate of 25 per community pot of about 6 in.; place where no hose splashing can reach them, with a little bottom heat not less than... Read More

DEFLASKING: Professional Procedures

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use fine fir bark, use lukewarm water, plant firmly but not deeply, avoid strong light, not over 1500 foot-candles and a night temperature of not below 65 dF with humidity not below 75% and provide... Read More

CHROMOSOMES: Pros and Cons

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago An argument against its policies or provisions and stating the program needs to be re-evaluated; refer to A88-30 Read More