Roots play insignificant role in absorption of water in:
Pistia
Pea
Wheat
Sunflower
As discussed in
Rate of Water Absorption (R) -
-
Rate of water absorption in the roots depends upon soil conditions. But Pistia is a hydrophytic plant and hence, roots have no significance in water absorption.
Option 1)
Pistia
This option is correct.
Option 2)
Pea
This option is incorrect.
Option 3)
Wheat
This option is incorrect.
Option 4)
Sunflower
This option is incorrect.