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Please give a site for reference. thnx

2007-02-21 09:00:39 · 9 answers · asked by hockeynut 2 in Science & Mathematics Botany

What specific COLOURS help light grow...

ex. Blue, Green, Red

2007-02-21 09:09:08 · update #1

9 answers

red light or yellow light

2007-02-21 09:08:21 · answer #1 · answered by rohan1985 2 · 0 0

Best: White light...sun light
Next Best: Red light
Next after that: Blue light
Worst: Green
Chlorophyll can absorb red and blue light, both of which are present in white light. It reflects green light and doesn't use it for photosynthesis.

2007-02-21 17:14:29 · answer #2 · answered by Ellie S 4 · 0 0

Plants grow best using red and blue light because they have pigments that allow them to absorb light at those wavelengths. Generally though, plants are pretty good at shifting other wavelengths (colors) to something they can use. In fact, wavelength of light from 400 nm (blue-violet) to 700nm (red) is called photosynthetically active radiation (PAR). You might look up PAR using a search engine.

2007-02-21 20:23:52 · answer #3 · answered by Miss Vida 5 · 0 0

The best types of electric light for plant growth are fluorescent and high
intensity discharge lamps (HID). HID lamps are of several kinds including high
pressure sodium, a type often used in street lights. Incandescent light
produces a lot of heat and not much light so is not as good for plant growth.

2007-02-21 17:06:41 · answer #4 · answered by Anonymous · 0 0

Plants need sun light to grow. Buy a big pot, put the seeds in, water it, and put it somewhere there is light.

2007-02-21 17:03:59 · answer #5 · answered by Anonymous · 0 0

Actually, it's a white light given off by a metal halide lamp.

GO TO:

http://www.marinedepot.com/aquarium_lighting_metal_halide__subindex.asp?CartId=

2007-02-21 17:06:35 · answer #6 · answered by Anonymous · 0 0

red light is best because of the short waves.

Hope this helps!!

2007-02-21 17:08:53 · answer #7 · answered by Shi Yoyo 2 · 0 0

Ultra-violet light.

2007-02-21 17:04:17 · answer #8 · answered by Norrie 7 · 0 0

SUN, light

2007-02-21 17:02:43 · answer #9 · answered by Anonymous · 0 0

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