Meaningful girdling experiments can't be performed with sugarcane plant because

Options

A. its stem is thin
B. its vascular bundles are scattered and not arranged in a sequential order
C. its stem surface is coated with wax
D. phloem is interior to xylem

Answer

### Step-by-Step Solution:

1. **Understanding Girdling Experiment**:
- The girdling experiment involves removing a ring of bark from a tree, which includes all tissues outside the vascular cambium. This experiment is used to demonstrate the role of phloem in the transportation of food.

2. **Identifying the Structure of Sugarcane**:
- Sugarcane is a monocot plant. In monocots, the vascular bundles (which include xylem and phloem) are scattered throughout the stem rather than being arranged in a circular pattern.

3. **Comparison with Dicot Plants**:
- In dicot plants, vascular bundles are arranged in a ring. This arrangement allows for the easy removal of the phloem during girdling, making it possible to observe the effects on food transport.

4. **Reason for Inability to Perform Girdling on Sugarcane**:
- Since the vascular bundles in sugarcane are scattered, it is not feasible to remove all the necessary tissues (including phloem) in a single ring. This makes meaningful girdling experiments impossible with sugarcane.

5. **Conclusion**:
- The main reason meaningful girdling experiments cannot be performed with sugarcane is that its vascular bundles are scattered and not arranged in a sequential order.