HYBRIDIZING: Barriers Within a Genus

Orchid Doctor Propagation

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 8 years ago.

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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
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More The Orchid Doctor Articles under the Heading Hybridizing

Hybridizing Comments
HYBRIDIZING: Advice to Beginners For the perspective and all the precepts involved in successful cymbidium propagation, refer to OA80-184 0
HYBRIDIZING: Age of Flower Used It can be in bloom for only one day or when fully opened as long as the stigmatic fluid is sticky. ODA76-22; flowers not more than' two days old are best, before the stigmatic surface becomes contaminated. 0DA76(4)-26 0
HYBRIDIZING: Between Two Bigeneric Species Breeding can proceed in seven ways without the usual male or female position in crossing; example: Miltonia and Oncidium: MxO, OxM, MOxO, MOxM, OxMO, MxMO, MOxMO. 0DA76(4)-25 0
HYBRIDIZING: Early or Late Flowers Flowers coming out after half the flowering season is over are more likely to take than the early ones. ODA76(4)-24 0
HYBRIDIZING: Information on Breeding The time of year in which to do a cross varies with circumstances but mainly whether the two flowers are available or whether the pollen has been properly stored; consideration should be directed to too many factors for summarizing; claim: pollination is best done during the second and fourth quarters of the moon when tides are rising higher and no leaves fall from the trees; sounds like the way the Druids did it. OR81-128 0
HYBRIDIZING: Reciprocal Crosses These can make a difference because in yellow and orange colored flowers, spotting and some other traits, desirable or not, are transmitted through other parts of the cell besides the genes, oddly enough, so are particularly inherited from the mother plant. OIE87Jy-14 0
HYBRIDIZING: Response to Flowers in Crossing There is great variation in the same spray; some set only on one side of the peduncle; some only set on the last flower, or on the first flower of the main peduncle, or on the third flowering on a single spray. ODA76(4)-24 0
HYBRIDIZING: Sib Crossing Sib crossing of new clones of species with old clones of the same plant may develop fine qualities as an improvement over both parents; more sib crossing to achieve superior forms advised. ODA76(4)-26 0
HYBRIDIZING: Species Species kept too long in captivity become poor breeders. ODA76(4)-26 0
HYBRIDS: Aspects The female (pod, or capsule, parent) is always the first name in writing the cross, which is the. opposite for animals; reciprocal crosses make a difference in certain traits such as yellow and orange coloring, and spotting is transmitted through other elements in the cell not the genes, so are particularly inherited from the mother. OIE87Jy-14 0
HYBRIDS: Primary Crosses In their characteristics they tend to be midway between the two parents; it is in the subsequent generations that "improvements" begin to show up in a breeding programme'. OR87-187 0
HYBRIDS: Registration At the Grex Level A proposal for publication of the name of the actual cultivar parents for the identification of exact strains (repeats) of particular hybrids, because there is such variation in the quality and characteristics in hybridizing; refer to OR87-338 0
HYBRIDS: To Register Obtain a registration form from, and return it to, the Registrar of Orchid Hybrids, Royal Horticultural Society, Vincent Square, London SW1P 2PE, England. A86-814 0

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