0
What wavelength of light is most effective in driving photosynthesis?
Wiki User
∙ 6y ago
The wavelength most effective in conducting photosynthesis is 420nm.
^^ Actually, 420nm is on the blue side of the spectrum, which makes up between 1 and 10% of the light needed for photosythesis. There is a plateau on the blue side when comparing blue wavelength effects on photosynthesis, and 420nm is right on the edge of it. 430nm would be more in the middle of the plateau, making it the safer bet.
Plants need red light, and lots of it. Red light contributes to over 90% of photosynthesis. You can't grow plants on just blue light. Seems to be the most efficient wavelength of red light, for photosynthesis, is between 660nm and 680nm, and not higher. Unlike blue, there is no plateau when comparing red wavelength effects on photosynthesis, so there is a more broad answer, depending on the plant.
It seems though, if working with LEDs, that 630nm are more mass produced (cheaper). So you can just use those instead, or couple them with far red light (infrared), 730nm, to stimulate PFR, germination. Far red light depends greatly on what you are growing though, read up on it.
I'm no expert, but the first answer wasn't very good.
^^ Overall, I would agree with this answer. However, it is possible to grow a plant using only blue light. Blue light is required for the vegetative growth of plants. I have been able to grow basil using blue LED lighting on a 20 hour cycle. This is fine for herbs. If you wish for your plant to flower you will need red light at the wavelength described in the previous answer. It is also possible to grow plants using only a red wavelength. Although, from what I hear the plants will look a little thinner than normal but the quality of tast should be the same.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoThe absorption spectrum for chlorophyll peaks at indigo (violet-blue) and red light. These wavelengths are ABOUT 400-450 and 600-700. The colors that bounce back and are not absorbed are primarily green, giving plants their trademark color.
Wiki User
∙ 6y agoThe wavelength of 475nm and 650nm are most effective in driving photosynthesis.
Wiki User
∙ 14y agoChlorophyll absorbs red and violet-blue light while transmitting and reflecting green light
Wiki User
∙ 15y agoThe not green ones.
Wiki User
∙ 13y ago420 mm
Add your answer:
Earn +20 pts
What wavelength of light is the least effective in driving photosynthesis?
Photosynthetic pigments absorb blue, red and green lights. The wavelength of light that is the most effective in driving photosynthesis is 420 nanometers, which corresponds to blue light.
Can you tell from these absorption spectra whether red light is effective in driving photosynthesis?
One cannot tell from this graph, but because chlorophyll adoes absorb red light, we can predict that it would be effective in driving photosynthesis.
What is the relationship between light wavelength and photosynthetic rate?
Some light wavelengths improve the rate of photosynthesis. The best colors for photosynthesis are blue and red while yellow is the worst.
What two colors of light drive most photosynthesis?
Red and Blue light is absorbed by chlorophyll, the pigment that transforms light energy into chemical energy in photosynthesis, so that the light that is reflected off leaves appears green.
What are some factors that affect photosynthesis?
The factor that will effect photosynthesis the most is light. Plants need light in order for photosynthesis to take place. Water, air, pH, and temperature will also effect photosynthesis.
What wavelength of light is the least effective in driving photosynthesis?
Photosynthetic pigments absorb blue, red and green lights. The wavelength of light that is the most effective in driving photosynthesis is 420 nanometers, which corresponds to blue light.
Can you tell from these absorption spectra whether red light is effective in driving photosynthesis?
One cannot tell from this graph, but because chlorophyll adoes absorb red light, we can predict that it would be effective in driving photosynthesis.
Why are violet-to-blue and red photons the most effective at driving photosynthesis?
Red light has the longest wavelength and the lowest energy. The chlorophyll molecules of chloroplasts absorb the red light the best because of the longer wavelength.
Is light with long wavelengths good for photosynthesis?
No. Unless the wavelength of the light is sufficient to excite the reaction, no amount of longer wavelength light will do anything except add to local heating.
What assumptions did Engelmann make in order to conclude that red and violet-blue light were more effective than green light in driving photosynthesis?
The distribution of chloroplasts within each algal cell was approximately the same. The number of bacteria clustered at each wavelength (color) was approximately proportional to the amount of oxygen being produced by that portion of the alga.
What colours of light are most effective in the photosynthesis process?
blue
What is the relationship between light wavelength and photosynthetic rate?
Some light wavelengths improve the rate of photosynthesis. The best colors for photosynthesis are blue and red while yellow is the worst.
What wavelength of visible light is of least value in photosynthesis?
Green (~510nm) which is reflected by the plant and not absorbed at all
Is light necessary for photosynthesis which light?
Ordinary visible light. It is most effective with a peak in the yellow, just like the sun provides.
What is photosynthetic pigment?
photosynthesis pigments are molecules that absorb light energy. each pigments absorbs rang of wavelength in the visible region and own distinct peak. and other wavelength's are reflected
Are wavelengths used in photosynthesis primarily infrared and ultraviolet?
No, the wavelengths are between visible light(around 400-600nm i guess)with the exception of the wavelength of green light.
What two colors of light drive most photosynthesis?
Red and Blue light is absorbed by chlorophyll, the pigment that transforms light energy into chemical energy in photosynthesis, so that the light that is reflected off leaves appears green.
