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Plants require light for photosynthesis, so it is impossible for plants to increase in dry biomass without any light.

Some plants do not require high levels of light for growth, because they are adapted to low light conditions (such as jungle and forest plants).

Plants left in the dark will grow taller than plants in lighted conditions over a short period of time, but they will also be yellower and more spindly (etiolation). The increased height is a response to low light levels - the plant is trying to grow over anything that may be blocking the light, and will grow towards any source of light.

As mentioned in the discussion page of this question this response is controlled by auxins in the plant growth points.

For very short periods of time the plant will appear to be going faster than a control plant in normal light intensities - however, this is because the stem is normally thinner so the amount of biomass produced is roughly the same. In addition the plant has to make use of stored energy reserves as it is not able to photosynthesis.

Etiolation is a form of self-protection mechanism, the plant expends energy and reserves looking for a source of light that can ensure its continued survival.

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βˆ™ 2012-08-02 12:59:12
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Q: Do plants grow faster in light or dark?
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Related questions

Do plants grow faster in the dark than in light?

No, plants need light to live and grow.


Can plants grow faster in the dark?

yes it can grow faster in the dark because i am planting my flowers in a dark place but you have to keep watering it so it can grow. maybe not all plants grow faster in the dark there is certain kind of plants that can. if you dont take care of it it will not grow how you want it to grow.


Can a plant grow faster in the dark or light?

In the light. Plants need light energy from the sun to go through photosynthesis, which is how plants produce the energy and nutrients they need to grow.


Do plants grow faster in dark or sun?

Plants grow faster in the sun. They cannot live without it.


Do potatoes grow faster in light or dark?

Light


Why does plants grow faster in the dark?

Because they need light to survive and they are fighting anything that is blocking the sunlight


Could plants grow faster in the dark then in the light?

no because scientificly plants need sunlight to complete photosynthesis so the answer would be no.


Does mold grow faster in the light or dark?

Mold can grow better in the light because when fruits get into the dark they can spoil faster and get soft/ugly


Do plants grow faster in or outside?

outside plants grow faster due to the presence of sufficient light


Why do plants grow faster in blue light?

it grows faster


Why Mung Beans grow faster in dark?

because if they have no light they will grow as tall and as fast as they can so they can get light more than any other plants thats around


What light makes plants grow faster?

Blue light

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