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. |
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Title: | The Green Machine | |
Air Date: | January 11, 1978 | |
Runtime: | 60 min | |
Genres: | History Nature | |
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