The Green Machine Nova : Season 5 Episode 2
TV-PG PBS 1h 00m
Aired: January 18th, 1978 @ 9:00 PM EST on PBS
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.
