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Although there does not seems to be a definite answer, this is probably due to organic aromatic compounds from lignin degradation (such as humic and fulvic acids). Other vegetal organic pigments such carotenoids and anthocyanins may also take part in that.
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∙ 10y ago
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∙ 16y agoRoots are brown because they do not have chlorophyll which gives the green color to the plant.The plants are green because they contain chlorophyll its as simple as that.
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∙ 15y agobecause it is, well little trolls came and painted brown on every tree seed before they planted then they sped on segways
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∙ 15y agobecause dogs, cats and people keep taking craps on it
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∙ 14y agobecause the sky is blue. because with all the organisms, and dead plant materials mixed with everything else turns brown.
Wiki User
∙ 12y agoThe leaves are dying
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What kind of leaves does a redwood tree have?
description of the leaves
Why is an evergreen tree turning brown from the bottom up?
A big dog pooped in the mud.
Why do the leaves of a tree turn brown in the fall?
the tree stops making chlorophyll in the winter. (the chlorophyll is the stuff in the leaves that makes them green)
What does an olive tree look like?
An olive tree has a light brown stems with kinda lightish darkish colour leaves. With olives of course.
Your evergreen tree is turning brown just planted last year please help?
Looks like you neglected the watering.
The leaves on your eucalyptus tree are turning brown What do you need to do?
Does the tree need more watering?
How do you care for the leaves on a Robellini palm tree turning brown?
You can't.
My banana tree shoots up new leaves constantly but as soon as they uncoil why are they turning brown and dying?
Possibly lack of moisture at the roots.
Why are the leaves on your fig tree turning yellow?
black spots on the leaves?
What kind of leaves does a redwood tree have?
description of the leaves
Why are the leaves of tibouchina tree turning yellow?
Is Epsom salt good for Tibichina Tree with a lot of flowers but drooping leaves?
Why the leaves of wax myrtle tree turned brown?
A wax myrtle tree my develop brown lesion on its leaves when infected with a leaf spot disease. The tree will regrow new leaves once the infection has cleared.
You planted a white birch tree a month ago all was well until this week now some of the leaves are turning yellow why?
I have a four clump white birch tree which we planted seven years ago. The tree has been beautiful and about fifteen feet tall. THis year three of the clumps did not get leaves on and the clump that did get leaves on the leaves are brown and dying. What could have happened?
Why is your inside palm plant leaves turning brown?
if it its leafs are turning brown then that probably means that it is sick or is not getting enough light.
You have an orange tree Its leaves are turning yellow in the middle of the leaves what can you do to take care of this tree?
Try some Epsom Salts this may be a Magnesium deficiency.
Why do apple tree leaves go brown when the tree is still alive?
The tree goes dorman in winter.......
List in order the changes that a tree undergoes as winter approaches?
The leaves turn shades of red,yellow, orange & brown. Then the tree slowly sheds its leaves. The leaves fall of the tree and the tree is completely bare.
