Science: Plant Fever

Sick plants are like sick children. They get hot and feverish when they don't feel well. Last week the University of California's Professor C. E. Yarwood told how he put leaves of healthy plants in a well-insulated container and measured their temperature after four hours. He found that the respiration of the leaves (their "breathing" of oygen) had raised their temperature at most 2.7° F. above the outside air. Then he put sick leaves, infected with virus or fungus diseases, in the chamber. In four hours they were running temperatures up to 6.3° F. Sick leaves, Dr. Yarwood believes, breathe more...

Want the full story?

Subscribe Now

Subscribe
Subscribe

Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on TIME.com

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!