Question

What is annual ring ? Explain it

Answer 1

HEYA MATE HERE U GO.

• In temperate region , the activity of the cambium is influenced by the seasonal variation.
• During spring season , more leaves and flowers are formed.
• The plant requires more water and mineral salts.
• Hence the wood formed in this peruod shows more number of xylen vessels having wider lumens.
• This is known as spring wood or early wood
• During autumn , the plants donot require much water.
• Hence the wood produced in this peruod shows less number of xylem vessels having narrow lumens.
• This is known as autumn wood or late wood.
• In this way , two types of secondary xylem are produced in one year .
• They appear as circles.These are called growth rings or annual rings