PHOTOSYNTHESIS: New Growths Stretch Towards the Window

Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin about 4 years ago.

Article Blog   Article Index
To keep plants grow ing upright when they are some distance from the light source rotate them one-quarter turn every two weeks; install Lazy Susans? A83-698
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Photosynthesis

Photosynthesis Comments
PHOTOSYNTHESIS: And Temperatures For every 18 deg.F. (10 deg.C.) rise, the rate of photosynthesis increases from 2.2 to 2.6 times, until 86 F. (30 C.) to 95 F. (35 C.) is reached when no further increase occurs; far above that the rate may decrease. OR72-34 0
PHOTOSYNTHESIS: In Cattleyas They fix CO-two both day and night; the balance point of photosynthesis/food formation is at 200 lux, i.e., food formation is just equal to transpiration, at light intensities from 200 lux to 5000 lux the rate of photqsynthesis increases to its maximum level; in winter the poorer level of light requires that plants be kept at 50 dF (lO dC). OR81-214 0
PHOTOSYNTHESIS: Rates of Activity It starts functioning at 6 dF; at 62 dF it achieves 60% of full activity; at 70 dF it is 83%, at SO dF it is 100%, at 90 Deg. it is 80%, at lOOd it is 40% and at llOd it does not function. AU87(2)-17 0

New Topics

  1. John Small asked question Lady Bug or dangerous bug in category General Discussion
  2. John Small asked question Paper Wasp? in category General Discussion
  3. Sharie Heckaman started topic Photos of plants in category General Discussion
  4. Roberto Lizama started topic Orchid identification in category General Discussion
  5. Roberto Lizama asked question Help to idenficate this orchid in category General Discussion

New Comments

  1. Carol Holdren commented on member plant Phal. buyssoniana by Robert Oceans
  2. Mary Lane commented on member plant Fdk. After Dark 'SVO Black Pearl FCC/AOS; CCE/AOS' by William Gorski
  3. John Small commented on topic "Paper Wasp?" by John Small
  4. Lauren Hutchison commented on topic "Help to idenficate this orchid" by Roberto Lizama
  5. Carol Holdren commented on member plant Phal. Timothy Christopher by Vickie Seibert
  6. Carol Holdren commented on topic "Photos of plants " by Sharie Heckaman
  7. Carol Holdren commented on member plant C. Ronald Fonseca var. Compact 'SVO' by Vickie Seibert
  8. Roberto Lizama commented on member plant Ntl. bicolor by Roberto Lizama
  9. Carol Holdren commented on member plant Gra. stapeliiflora var. Waki by Melvin Waki
  10. Vickie Seibert commented on member plant Phal. Anna-Larati Soekardi 'Wilson' by Vickie Seibert
  11. Carol Holdren commented on member plant Rrm. Spunky by Melvin Waki
  12. Charles Vella commented on topic "Orchid list Cold/Warm" by Charles Vella
  13. Sandi Block-Brezner commented on topic "Brassocattleya hybrid?" by Sandi Block-Brezner
  14. Robert H. Findlay commented on topic "looking for info about an unregistered cattleya" by bob lewis
  15. james Hu commented on orchid Den. vannouhuysii
  16. Chase Hubbard commented on member plant Hknsa. Sogo Doll by Tom Kuligowski
  17. Colin Campbell commented on topic "Can anyone identify this orchid?" by Jan E Teitsworth
  18. Carol Holdren commented on member plant Lc. Memory of PienPien Wei by Robert Rand
  19. Robert Rand commented on member plant Bc. Yellow Bird by John Small
  20. Sharie Heckaman commented on member plant Btcm. Hwuluduen Chameleon by Diana Sammy