In general, sunlight is better for plant growth as it is intense and contains the full spectrum of electromagnetic radiation required for optimal plant growth.
Artificial light, if it is an ordinary room light, will only support low-light tolerant plants. Most artificial light sources (fluorescent and incandescent) do not provide the full visible light spectrum that is required by plants for optimal growth, this results in plants that are tall and spindly (etiolated) and sometimes discolored.
However, there are special lights with a spectrum that is tailored for growing plants. They have to be on for longer hours than sunlight, but as long as a plant is getting enough light-energy to manufacture its food, it will grow well. It doesn't matter whether that light is coming from the sun or from grow lights.
The downside to extended exposure to light is the plants metabolic functions operate twice as hard for the same amount of output. Recent studies have also highlighted some of the negative aspects of extended photosynthetic periods (extended light reactive period and shortened dark reaction period).
There are times when artificial light has an advantage.
Hydroponic gardening with artificial light makes it possible to grow plants in unreliable climates that are lacking in sunshine - think of the long "night" periods of areas of the northern hemisphere. In some places in Canada forage for animals is produced indoors during the winter months in artificial conditions.
Supplemental lighting is used in horticulture to produce plants in flower outside of their normal flowering period. For instance Christmas cactus, poinsettias, tulips, narcissus, chrysanthemums, etc.
Many houseplants grow better under artificial lamps, not because of the lights, but because it keeps them away from drafty windowsills!
Plants will grow better under sunlight; artificial light lacks the complete spectrum of light provided by the sun. You can purchase "grow lights" which have a special coating on the bulb to produce more light in the spectrum that plants need to photosynthesize. However, they can never completely duplicate natural sunlight.
Artificial lights are produced to help humans see in the dark, so they only need to produce light in the visible spectrum.
Sunlight. Light is measured in Lumens, the Sun emits anywhere from 32,000 and 100,000 lumens per square meter (depending on the location). A typical grow light (High Pressure Sodium / Metal Halide) produces around 50,000 lumens per square foot. In peak conditions, the Sun can double the lumens of any grow light. Also, grow lights arent well rounded in spectrums, Metal halides emit mostly a blue spectrum while High Pressure Sodium Lamps emit mostly red spectrum. The sun is well rounded on both spectrums. The other lights you mentioned cannot be used to grow plants to potential.
The plant goes to the light bulb more not the sun the light bulb gives more nutrients then the sun does
its blue light sun light is one but blue light is better
Although plants can grow in fluorescent light, they do grow best in sunlight.
sun light is the best light for plant
sunlight
yes
Fluorescent light works for most of plants and even aquarium fish. But when it comes to special races of plants, such as mariguana or some philotherms, HPS or MH can achieve a better effect. Check the link below for more detail about fluorescent light.
The plants food production would be slower because the green light is reflected instead of absorbed and the only light it gets is green no other colors.
Plants are green because they do not absorb green light, but reflect or transmit it. The light they absorb is mostly from the blue and red ends of the spectrum. So if a plant is kept in green light it will not be able to absorb it and so will not be able to carry out photosynthesis.
Plants, in fact, do grow faster under certain colors of light. The reason for this is that chloroplasts can only absorb certain wavelengths of light because of the pigments they contain. There are 2 photosystems in plants called photosystem I and II. PS I absorbs light on the wavelength of 700nm while PS II absorbs 680nm because of their utilization of chlorophyll A and B. These two frequencies are known as the peak absorption points because they are the wavelength at which light is most strongly absorbed. Different forms of chlorophyll and other photosynthetic pigments absorb other frequencies of light, but PS I and PS II are what is used for synthesizing ATP and reducing power which plants use to grow. The visible spectrum of light is between 380-750nm for humans. Therefore PS I and II require red light to perform photosynthesis. As stated before, however, there are other photosynthetic pigments present in plants and other phototrophic species such as bacteria and algae that absorb other pigments. An example of this is the carotenoid pigment that absorbs primarily blue light as do chlorophyll A and B. Blue light contains more energy than red light but for PS I and II and plant growth both are needed. Studies in the 50's showed that the rate of photosynthesis increased under far-red and red light compared to other frequencies. Green plants will grow SLOWER or not at all under green light. Basically, green is the only brand of light that the plant's chloroplasts doesn't use. That is why it is the only color reflected from the leaf, and is what we see.
no.
yes
Sunlight
Blue and purple light.
sunlight
Good
Explain why light is essential for a plant to grow
Fluorescent light works for most of plants and even aquarium fish. But when it comes to special races of plants, such as mariguana or some philotherms, HPS or MH can achieve a better effect. Check the link below for more detail about fluorescent light.
Sunlight
The photosynthesis pathway has phytochrome systems which response to red light.
By putting the plants under the light and seeing which one does better.
It depends what you mean by better. They will grow more naturally in sunlight but can be forced artificially with lights and may produce more and be grown out of season. I would say natural is better but then we have a world to feed.