ODONTOGLOSSUMS: Breeding

Oncidium Alliance Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin over 4 years ago.

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For the story in France, refer to W9-57 -- intergenerics and their repotting = as to when is best, do it when growths are half developed in cool weather, spring or fall; avoid hot weather stress. A85-435
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More The Orchid Doctor Articles under the Heading Odontoglossums

Odontoglossums Comments
ODONTOGLOSSUMS: Bronzing of Leaves Maurice Vacherot prefers his plants not to bronze; McBean's (Ray Bilton) plants have very strong bronzing. AU76-76 0
ODONTOGLOSSUMS: First Flowering It is a mistake to let a small plant flower fully; restrict the first spike to one flower only. AU76-73 0
ODONTOGLOSSUMS: Footcandles of Light Required in Summer At 9:00 A.M.: l,000fc.; 12:00 noon: 1,200 to l,300fc; 3:00 P.M. :600fc; 5:00 P.M.: 500fc. OD71-88 0
ODONTOGLOSSUMS: Hard-bulbed Types Most of them need a rest; the harder the bulb the longer the rest; they come from Mexico, Guatemala, Honduras; include O. bictoniense, citrosmum, cordatum, grande (Rossioglossum), JLaeve, pulchellum, rossii, and uro-skinneri; for instance, O. citrosmum needs a rest from September to March at about 55 deg.F. to flower properly. OR73-257 0
ODONTOGLOSSUMS: Night Temperature Maintain around 60 deg.F. in summer, but ease it back to 55 in fall and winter. AU76-74 0
ODONTOGLOSSUMS: Non-flowering If the plants are in good growth, to induce flowering a rather severe reduction in light for a few weeks is advised. OR76-362 0
ODONTOGLOSSUMS: Propagation by Backbulbs It is a difficult process; try severing the backbulbs, making one cut between them and the forward group about a year before the plant is actually divided. A57-788 0
ODONTOGLOSSUMS: Propagation by Pseudobulbs Use two or three as a unit to be successful; dust the cut with sulphur or a sealing compound; place in plastic bag with damp sphagnum until roots show. AU76-76 0
ODONTOGLOSSUMS: Repotting Time Contrary to the general rule and practice, the best time to repot is in September. OR75-44Do it only when new growth is three to six inches high, which is when the hew root system becomes active; this can happen any time of the year; the new growth rules the time. AU76-74 0
ODONTOGLOSSUMS: Splitting Pseudobulbs When the outer layers of the bulb mature prematurely, cracks suddenly appear and clear, gummy fluid exudes; this can arise from excess of sunshine or/and a surfeit of potash. OR76-184 0
ODONTOGLOSSUMS: Watering Water heavily all year round; give them as much or more in winter. A76-427 0

New Topics

  1. Pam Alexander asked question How to repot a Mattie Shave in category General Discussion
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  4. Robert H. Findlay asked question Help with ID of this Eria sp. in category General Discussion
  5. Osura Mindula Gunasena asked question Help to Identify the Id of this Vanda in category General Discussion

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