Supporting roots of maize stem, which arise from the lower nodes are called
(a) Pneumatophores
(b) Prop roots
(c) Stilt roots
(d) Contractile roots

Options

A. Pneumatophores
B. Prop roots
C. Stilt roots
D. Contractile roots

Answer

To solve the question regarding the supporting roots of maize stem that arise from the lower nodes, we need to analyze the options provided:

1. **Understanding the Question**: The question asks for the specific type of roots in maize (corn) that provide support and originate from the lower nodes of the stem.

2. **Analyzing the Options**:
- **(a) Pneumatophores**: These are specialized aerial roots that help in respiration, typically found in mangroves. They are not related to supporting maize.
- **(b) Prop roots**: These roots arise from the stem and help in providing additional support, but they are not specifically referred to as supporting roots from lower nodes in maize.
- **(c) Stilt roots**: These are roots that grow from the lower nodes of the stem and provide support to the plant, which is characteristic of maize.
- **(d) Contractile roots**: These roots help in pulling the plant deeper into the soil but do not provide structural support.

3. **Identifying the Correct Answer**: Based on the analysis, the roots that arise from the lower nodes of the maize stem and provide support are known as **stilt roots**.

4. **Final Answer**: Therefore, the correct answer is **(c) Stilt roots**.