Category: Propagation

COLCHICINE: Results to Date

Author is Robert M. [Bert] Hamilton (Compiler), posted about 4 years ago 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 flow... Read More

COLCHICINE: And Production of Tetraploids

Author is Robert M. [Bert] Hamilton (Compiler), posted about 4 years ago 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+ Read More

COLCHICINE: And Dendrobiums

Author is Robert M. [Bert] Hamilton (Compiler), posted about 4 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

COLCHICINE: And Vandas

Author is Robert M. [Bert] Hamilton (Compiler), posted about 4 years ago Induction of polyploidy; 0.1% of solution used in test; 29% of plantlets converted to tetraploid. NH73(2)19 Read More

ALBA TYPES: Detecting in Cymbidium Seedlings

Author is Robert M. [Bert] Hamilton (Compiler), posted about 4 years ago Checking foliage is not always positive; pigmentation or lack of it is not definitive; highly pigmented plants is best possibility. OA71-29 Read More

ANEUPLOIDY: Effect on Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted about 4 years ago A chromosomal condition which may cause retarded growth and weakness in development. A76-577 Read More

ANEUPLOIDY: Growth

Author is Robert M. [Bert] Hamilton (Compiler), posted about 4 years ago In paphiopedilums it is short and heavy. A78-999 Polyploids in which the chromosome count is not an even multiple of the haploid number. AU78-47 Polyploids in which the chromosome count is no... Read More

CHROMOSOME NUMBERS: Importance

Author is Robert M. [Bert] Hamilton (Compiler), posted about 4 years ago They are significant for cymbidiums, but not for others such as paphiopedilums, for breeding purposes. OA78-17 Read More

COLCHICINE: And Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted about 4 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: Used to Change the Ploidy of Clones

Author is Robert M. [Bert] Hamilton (Compiler), posted about 4 years ago 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 tetrap... Read More