Question

*Plants like maize, sugarcane, sorghum have some roots are underground and ______ grow from the stem just above the soil.*

1️⃣ modified roots
2️⃣ adventitious roots
3️⃣ taproots
4️⃣ aerial roots​

Answer 1

Answer:

D

i and ii only

Banyan Trees are having a supporting root system for its branches. But maize and sugarcane have the stilt root to help the plant to stand erect. Prop roots or columnar roots in banyan. These aerial roots appear like props or columns.

In banyan tree, these roots develop from the large, horizontal branches of large trees. Stilt roots in maize and Sugarcane are adventitious. They are developed from the lower part of the stem and grow obliquely. The stilt roots give additional support to the plants.

The correct options are i and ii.

Thus the correct option is D.

Answer 2

Plants like maize, sugarcane, sorghum have some roots are underground and adventitious grow from the stem just above the soil.

• Roots that arise from plant parts other than the root tissue are termed adventitious roots.
• The adventitious roots which are formed at the basal nodes of the stem and grow obliquely to attach to the soil are called stilt roots. They are found in maize, sugarcane etc
• The tap roots are ones in which the main radicle gets branched into secondary and tertiary roots.
• The aerial roots are also adventitious and grow above the ground.