Newly Posted Articles

CYMBIDIUMS: Don'ts for Growers

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Do not overpot, overwater, allow to dry out, let leaves get direct hot sun, overshade, spray white oil on sunny days, use wet sprays on buds, overfeed with liquid fertilizer, let temperatures rise ... Read More

HYBRIDIZING: Response to Flowers in Crossing

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 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 ... Read More

HYBRIDIZING: Sib Crossing

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 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 Read More

HYBRIDS: Aspects

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 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 ora... Read More

HYBRIDS: Primary Crosses

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 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 Read More

HYBRIDS: Registration At the Grex Level

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 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 cha... Read More

HYBRIDS: To Register

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 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 Read More

HYDRATED LIME: Source for Calcium

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago If the water supply, like rainwater, is low in calcium it can be supplemented at about the rate of 2.25gr. per five gallons of water; acid rain is low in calcium. AU44-97 Read More

XEROPHITIC ORCHIDS: Some Examples

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The genera include Angraecopsis, Cyrtorchis, Jumellea, Microcoelia, Rangaeris, Tridactyle and Ypsilopsis; plus Oncidium onusturn and Epidendrum boothianum. A80-1140 Read More

CYMBIDIUMS: Flushing with Tide Detergent

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In a hot area of California, for seven years Tide was used to flush out pots every September 1, then watered for two weeks before applying high phosphate and potash fertilizer; heavy flowering; ref... Read More