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Diffuse porous woods are characteristic of plants growing in
Diffuse porous woods are characteristic of plants growing in
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Solution
The correct option is D Tropics
Hardwoods may be divided into ring-porous and diffuse-porous trees. In ring-porous trees the vessels laid down at the beginning of the growing season are much larger than subsequent vessels laid down at the end of the season. Diffuse-porous trees form vessels of roughly the same radial diameter throughout the growing season. Larger vessel size permits more-rapid water conduction, because the rate of conduction varies with the fourth power of the radius of the vessel lumen. Most ring-porous trees are found in the north temperate areas of the world. Most diffuse porous trees are found in the tropical regions.
Hardwoods may be divided into ring-porous and diffuse-porous trees. In ring-porous trees the vessels laid down at the beginning of the growing season are much larger than subsequent vessels laid down at the end of the season. Diffuse-porous trees form vessels of roughly the same radial diameter throughout the growing season. Larger vessel size permits more-rapid water conduction, because the rate of conduction varies with the fourth power of the radius of the vessel lumen.
Most ring-porous trees are found in the north temperate areas of the world.
Most diffuse porous trees are found in the tropical regions.
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