Orchid doctor

COLCHICINE: And Vandas

Orchid Doctor Propagation

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 2 years ago.

Article Blog   Article Index
Induction of polyploidy; 0.1% of solution used in test; 29% of plantlets converted to tetraploid. NH73(2)19
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Colchicine

Colchicine Comments
COLCHICINE: And Cymbidiums Conversion rate to higher ploidy is more common than with other genera; the selection criteria is most important. AU80-49; FR90; OA78-16 0
COLCHICINE: And Dendrobiums Doubling chromosomes in meristem culture; percent of concentrations required; number of days to induce doubling of chromosomes; other data; refer to NH73(2)-12+ 0
COLCHICINE: And Production of Tetraploids High quality tetraploid cymbidiums, many already awarded now exist; probably induced by the judicious use of colchicine; breeding possibilities from them are great. AU75-190+; AU79-145; AU79-195+ 0
COLCHICINE CONVERSION: In the Future 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 pentaploids, the new way. AU79-196 0
COLCHICINE: In Cymbidiums 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 0
COLCHICINE: Results to Date Results of use for conversion are not consistent or concrete; untreated seedlings give just as good results as treated ones; it is limited to the extent that it can occasionally produce larger flowers at the expense of other factors. AU79-139+; refer to OB1-192 0
COLCHICINE: Used to Change the Ploidy of Clones A problem arises in reconciling the identification of the new chemically treated result with the original clone; some growers designate the new result with "4N", but the new clone may not be tetraploid. OA77-44+; OA77-47+; OA77-82 0
COLCHICINE: What it Is 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; refer to A63-885+; for other sources on its use on orchids, refer to A59-838 0
New Topics
  1. Paph hsinying jewel x paph hsying jewel september 09 2018 Adrienne Alexander asked question Can Zygopetalum (genus) be added to the look-up? in category General Discussion
  2. Paph hsinying jewel x paph hsying jewel september 09 2018 Adrienne Alexander started topic Zygopetalum in category General Discussion
  3. Piet2 Pieter Opperman started topic Some advice please in category General Discussion
  4. Susan Makar asked question "Aztec Gold" in category General Discussion
  5. Alison Brown asked question BLC can anyone tell me the hybrid name in category General Discussion
New Comments
  1. Edward Zapata commented on orchid Den. speciosum
  2. Image Carol Holdren commented on topic "Some advice please" by Pieter Opperman
  3. Paph hsinying jewel x paph hsying jewel september 09 2018 Adrienne Alexander commented on topic "Can Zygopetalum (genus) be added to the look-up?" by Adrienne Alexander
  4. Edward Zapata commented on scheduled event "Newport Harbor Orchid Expo and Sale "Orchid Mania"" by Newport Harbor Orchid Society
  5. Edward Zapata commented on orchid Wils. Tropic Breeze
  6. Robert Ferguson commented on member plant C. Calico Spots by Sharon Stretton
  7. Nathan Le commented on topic "BLC can anyone tell me the hybrid name" by Alison Brown
  8. Ba2b503c 4be9 4833 b247 39f8b3d131c1 Gerri Palmer commented on member plant Rlc. Jungle Green by Sharon Stretton
  9. Image Carol Holdren commented on member plant V. Pachara Delight var. Pachara Delight Pink by Frances LaVigne
  10. Julie Ellner commented on topic "Phalaenopsis Hope Star" by Karl Olsen