wood of Dalbergia consists of

Options

A. 90-95% vessels
B. 90-95% tracheids
C. 50-60% vessels and 4- 50% tracheids
D. vessels, tracheids and parenchyma in equal pro portions.

Answer

### Step-by-Step Solution

1. **Identify the Species**: The question pertains to the wood of Dalbergia, specifically the species Dalbergia siso, commonly known as Indian rosewood or Shisham.

2. **Understand Wood Composition**: The wood of Dalbergia is characterized by its density and porosity. It is important to note that the composition of wood primarily consists of vessels, which are essential for water transport.

3. **Analyze the Options**: The options provided are:
- 1st: 90-95% vessels
- 2nd: 90-95% tracheids
- 3rd: 50-60% vessels and 4-50% tracheids
- 4th: vessel, tracheids, and parenchyma in equal proportions

4. **Evaluate Each Option**:
- The first option states that the wood consists of 90-95% vessels. This aligns with the known characteristics of Dalbergia wood.
- The second option suggests 90-95% tracheids, which is incorrect as Dalbergia wood has a much lower percentage of tracheids.
- The third option indicates 50-60% vessels and 40-50% tracheids, which does not reflect the actual composition of Dalbergia wood.
- The fourth option claims that vessels, tracheids, and parenchyma are in equal proportions, which is also incorrect.

5. **Conclusion**: Based on the analysis, the correct answer is that the wood of Dalbergia consists of 90-95% vessels.

### Final Answer
The wood of Dalbergia consists of **90-95% vessels**.

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