Secondary growth is due to
All of the above
Maximum activity of cambium is in
very cold region
all of these.
Given the diagram of L.S of a part of bark region of plant. Choose the answer with the correct combination of parts and alphabets.
A = hydathode, B = epithem, C = phellem, D = phellogen, E = phelloderm.
A = lenticular opening, B = cortex, C = phellogen, D = phellem, E = phelloderm
A = stoma, B = secondary cortex, C = phellem, D = phellogen, E = phelloderm
A = lenticular opening, B = complementary cells C = phellem, D = phellogen, E = phelloderm.
Which of the following is not a product of secondary growth activity of a plant?
- winter, summer
- spring, winter
- autumn, spring
- winter, autumn
- Secondary xylem
- Interfascicular cambium
What constitutes the cambial ring?
A transverse section of the trunk of a tree shows concentric rings which are known as growth rings. How are these rings formed? What is the significance of these rings?
- There is little climatic variations.
- They belong to monocots.
- There is enough moisture.
- Soil is sandy.
- Cambium (meristematic tissue)