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The Green Machine

Botany is a neglected science and plants are all around us, but unfamiliar. NOVA examines our state of knowledge of how plants work: growth hormones, responses to light and shade, photosynthesis, root mechanisms and twining responses.

English
  • Originally Aired January 11, 1978
  • Runtime 60 minutes
  • Content Rating United States of America TV-PG
  • Production Code NOVA420
  • Network PBS
  • Notes Is a season finale
  • Created November 23, 2019 by
    Administrator admin
  • Modified June 26, 2022 by
    krv