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The number of stomata and epidermal cell...

The number of stomata and epidermal cells in 1 `mm^(2)` leaf area of lower epidermis of the leaves X, Y and Z plants are given below. Arrange the plants in decreasing order of their stomatal index.
The correct answer is

A

X, Y and Z

B

Y, Z and X

C

Z, Y and X

D

Y, X and Z

Text Solution

Verified by Experts

The correct Answer is:
B
Stomatal index can be found by the formula `=(S)/(E+S)xx100`
`X=(30)/(180)xx100 =16.67`
`Y=(60)/(300)xx100=20`
`Z=(90)/(490)xx100=18.36`
`Y gt Z gt X`
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