3 ms·
It's really complicated, because plants also use other bands of color for decisionmaking (e.g.: am I being shaded out by another plant? Am I tall enough? What t
by Centigonal 4y ago
It's really complicated, because plants also use other bands of color for decisionmaking (e.g.: am I being shaded out by another plant? Am I tall enough? What time of year is it? Should I make flowers? etc). Growers and light manufacturers have found that adding some infrared and other frequencies help, even though they don't contribute substantially to energy absorption.
Also, there are multiple chlorophyll molecules, with slightly different spectra. Lots of fun stuff in this field.
- eitland 4y agoBrings back memories: when I went to farming school around 1998 - 2000 we once visited a local commercial greenhouse and one thing I remember is they told me they used to have chemicals (plant hormones possibly?) that they sprayed on the leaves of flower plants to stop them from stretching and develop a more compact form, but had stopped doing that and now just lowered the temperature in the room a couple of hours before sunrise to get the same effect.