Orchid doctor

DAYS, SHORT: How Many Required to Set Cattleya Buds

Culture Orchid Doctor

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin about 3 years ago.

Article Blog   Article Index
Sometimes as few as five days; some crippling of flowers will show if too-long days follow the bud set period. A70-798
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Day Length

Day Length Comments
DAY LENGTH: Increased by Artificial Light Cattleyas may not flower with too much light, under lights and with kitchen lights on full. A86-1031Fall flowering cattleyas most respond to light; increase the day length by turning on lights for four hours from 10 p.m. to 2 a.m. each night; several weeks later after lights are turned off the plants should begin to flower; start lights in mid-July to delay fall-flowering cattleyas into winter. F74-165 0
DAY LENGTH: Response of Plants Cattleya warscewiczii does not respond to day-length; if a hybrid with it in its genes, flowers in early summer and the sheath is green and fleshy, it will not respond to photoperiod control. A86-815 0
DAYS, SHORT: Effects Cloudy weather can cause short days effect; stimulates flowering; weak light causes shortage of carbohydrates. A77- 36 0

New Topics

  1. Marilynn Davis asked question Can grow light cause deformed leaves? in category General Discussion
  2. George Su asked question New Intergeneric Orchids in category Other Genera
  3. Robert Scully asked question Searching for a special hybrid in category General Discussion
  4. Edward Zapata asked question Cymbidium breeding info? in category General Discussion
  5. Hfs photo Henry Shaw started topic Missing Gan Lin phal variety in category General Discussion

New Comments

  1. Image Carol Holdren commented on topic "Can grow light cause deformed leaves?" by Marilynn Davis
  2. Edward Zapata commented on topic "Cymbidium breeding info?" by Edward Zapata
  3. Stefan Neher commented on orchid Bl. Joanne Singer
  4. Stefan Neher commented on article "BLACK ROT: Pythium Ultimum" by Robert M. Hamilton (Compiler)
  5. Image Carol Holdren commented on topic "Searching for a special hybrid" by Robert Scully
  6. Edward Zapata commented on member plant Cym. Sarah Jean by Edward Zapata
  7. Hfs photo Henry Shaw commented on topic "Missing Gan Lin phal variety" by Henry Shaw
  8. 2016 11 03 Jeanne M Uzar commented on topic "Orchid not found in Orchids.Org" by Mary Lane
  9. Robert H. Findlay commented on orchid Z. mackayi
  10. Ramon Lao Galano commented on member plant Phal. Chang Maw Jade by Henry Shaw