The Orchid Doctor Articles under the Heading Ultraviolet Light

Ultraviolet Light Comments
ULTRAVIOLET HEAT LAMPS: Used as a Heat Lamp in the Greenhouse Use it only if the light, which is toxic to plants, is shielded from them. A68-524 used for varying lengths of time = the wave-length of u.v. is harmful to plants; short periods have no effect; kind of light usable by plants begins at 425 millicrons and u.v. is 400 or less; fluorescent lamps are mercury lamps of a sort, color-corrected for plant growing. A70-55 0
ULTRAVIOLET LIGHT: Flower Patterns Are Enhanced Under it In nature the light is useful for orienting flying insects to the right flowers for pollination. A71-877 0
ULTRAVIOLET LIGHT: Mimicry on Flowers To improve fertilization and attract pollinators, this form of light produces patterns; with reference to a bulbophyllum species examined; refer to A83-362 0
ULTRAVIOLET LIGHT: Sterilizing Agent It is used for sterilizing air in a chamber; do not expose bare skin to it; it will kill plant tissue, and seed. A73-709 0

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  1. Carol Holdren commented on topic "recently purchased orchid shows unstoppable roots " by David George
  2. Michael Makio commented on orchid V. Beatrice Makio
  3. Carol Holdren commented on topic "shorter stem with less vigorous blooms" by katherine mott
  4. Carol Holdren commented on topic "need info on yellow bird" by Glenda Ratliff
  5. Carol Holdren commented on topic "Looking to join an orchid club." by Paula Milano
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