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Temperature & Plant Responses to Temperature

Temperature & Plant Responses to Temperature. Floral Careers Plant Propagation. Air Temperature. Most buildings, offices, and homes are maintained at temperatures between 60-80 degrees F. throughout the year . Microclimates.

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Temperature & Plant Responses to Temperature

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  1. Temperature & Plant Responses to Temperature Floral Careers Plant Propagation

  2. Air Temperature • Most buildings, offices, and homes are maintained at temperatures between 60-80 degrees F. throughout the year.

  3. Microclimates • Climatic conditions will vary from location to location within a home or building. • temperature • humidity • light

  4. Causes of Microclimates • Heating/AC vents • Windows • Doors • Fireplaces • Incandescent Lights • Ventilation Fans Dieffenbachia

  5. What Can Be Done? • People can move to a more suitable location, plants can’t! • Choices • Move the plant, or • Try to change the climate

  6. Cold Temperatures • Causes: • Drafts from windows or doors • Air-conditioning vents

  7. Cold Temperature Damage • Plant symptoms: • Downward- curled leaf margins • Water-soaked lesions Severe Cold Injury on Chinese Evergreen

  8. Cold Temperature Damage • Little to no new growth • Reduced need for water Severe Cold Injury to Dieffenbachia

  9. Warm Temperatures • Causes: • Exposure to direct sunlight • Heating vents • Fireplaces • Incandescent light bulbs • Ovens

  10. Warm Temperature Damage • Symptoms: • Leaves turn yellow and develop brown, dry margins and/or tips. Leaves may turn all brown. High Temperature Damage to Heart-leaf Philodendron

  11. Warm Temperature Damage • Plants become “stretched” or spindly. • Problems with insects, especially spider mites.

  12. Rule of Thumb... • Most interior plants are more tolerant of HIGH TEMPERATURES than of COLD TEMPERATURES. • Many interior plants are damaged at temperatures of only 50 degrees F, or less!

  13. Humidity • Foliage plants like 80%. • < 20% during the winter. • How can we increase humidity?

  14. The End

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