NOVA
The Green Machine (5x2)
Season finale
Air date: Jan 11, 1978
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.
- Premiered: Mar 1974
- Episodes: 1034
- Followers: 306
- Running
- PBS
- Wednesday at 21