Category: Propagation

CHROMOSOMES: Variation in Numbers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A review; change and polyploidy; polyploidy and improvements in plants, other information, refer to OR81-169; OR82-368; OR87-139 Read More

NATURAL HYBRIDS: In European Terrestrials

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For a review of them see A84-130 -- when selfed = do they always breed true and if so why: if not, how else can the botanists tell a natural hybrid; they can cross the supposed parents and check th... Read More

HYBRIDIZING: Barriers Within a Genus

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They exist, but the chromosome numbers are important; chances are increased of achieving fine crosses if tetraploids are used, they lessen with triploids or aneuploids. ODA76(4)-25 Read More

SEED: Viability Test

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago By the use of tetrazolium; for an explanation and methods followed, refer to OR78-258+ Read More

ANEUPLOIDY: Effect on Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A chromosomal condition which may cause retarded growth and weakness in development. A76-577 Read More

MERICLONES: Phalaenopsis Can Be Successfully Produced

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Growth and blooming in 36 months was achieved from phalaenopsis with thousands of vigorously growing plants but Benzyl-amino-purine (BAP) greatly increases the percentage of sports which are sold t... Read More

MERISTEMMING: Mutations Arising

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It can happen; Miltonia Goodale Moir 'Jungle Surprise' is distinct from the batch of 'Golden Wonder' and was therefore given a new clonal designation. F72-13Plants should mericlone true, but there ... Read More

MERICLONES: Are They All Alike?

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago This scientific claim may not hold true in practice; perhaps natural improved varieties are possible during tissue multiplication; it may account for some of those claimed to be products of colchic... Read More

MERICLONES: Cattleyas Have Bloomed Only 50%

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Recovery from poor culture sometimes takes a long time even for meristem cattleyas; do not over-water; 18-18-18 fertilizer is satisfactory for culture in rock. A75-35 Read More

MERICLONES: Grading for Quality

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago This is necessary because there are differences and the unwary buyer can be stung; they should be graded according to whether they are original material or secondary productions from the tissue sto... Read More