Which of these statements regarding modified roots and stem is incorrect ?

Options

A. In Asparagus , adventitious root is modified for food storage
B. Prop roots are for mechanical support
C. Underground stems of potato , ginger turmeric , zaminkand and colocasia are modified for photosynthesis
D. Onion is an example of modified shoot

Answer

To determine which statement regarding modified roots and stems is incorrect, let's analyze each option provided:

1. **Asparagus advantageous roots are modified for food storage.**
- This statement is **correct**. In asparagus, the advantageous roots do indeed serve the purpose of storing food.

2. **Prop roots are for mechanical support.**
- This statement is also **correct**. Prop roots, such as those found in the banyan tree, grow down from the branches to provide additional support to the plant.

3. **Underground stems of potato, ginger, turmeric, zimmica, and caloxia are modified for photosynthesis.**
- This statement is **incorrect**. The underground stems of these plants (like potatoes and ginger) are modified for food storage, not for photosynthesis. Photosynthesis primarily occurs in the green parts of the plant above ground.

4. **Onion is an example of a modified shoot.**
- This statement is **correct**. Onions are indeed modified shoots known as bulbs, which store nutrients.

Based on the analysis, the incorrect statement is:

**The underground stems of potato, ginger, turmeric, zimmica, and caloxia are modified for photosynthesis.**