Who could grow tomato roots successfully and develop the technique of tissue culture of rthe first time ?

Options

A. Hilderbrandt
B. P.R. White
C. W.H. Muir
D. F.C. Steward.

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks who was the first to grow tomato roots successfully and develop the technique of tissue culture.

2. **Consider the Options**: The options provided are:
- A. Hildebrandt
- B. P. R. White
- C. W. H. Muir
- D. F. C. Stewart

3. **Recall Relevant Information**: It is known that P. R. White was a significant figure in the development of tissue culture techniques, particularly with tomato roots.

4. **Explain P. R. White's Contribution**: P. R. White successfully cultured tomato roots in a culture medium that included vitamins. He was able to develop a continuously growing callus from these roots, which exhibited the property of totipotency.

5. **Define Totipotency**: Totipotent cells are capable of giving rise to any cell type, which is crucial in tissue culture as it allows for the regeneration of complete plants from single cells.

6. **Describe the Process**: The callus formed from the tomato roots was treated with auxin to promote rooting and with cytokinin to encourage cell maturation and differentiation, leading to the development of stems.

7. **Conclude the Answer**: Based on the information, the correct answer to the question is option B, P. R. White.

**Final Answer**: B. P. R. White

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