Who experimentally proved that the auxins were responsible for the apical dominace

Options

A. L.G. Paleg
B. Thimann and Skoog
C. Skoog and Miller
D. Burg and thiman

Answer

**Step-by-Step Solution:**

1. **Understanding Apical Dominance**: Apical dominance is a phenomenon where the main central stem of the plant grows more strongly than the other side stems. This is primarily due to the presence of auxins, which are plant hormones.

2. **Identifying the Scientists**: The question asks for the scientists who experimentally proved that auxins are responsible for apical dominance. The options provided are:
- a) LG, Pleg
- b) Thiamine and Scoog
- c) Scoog and Miller
- d) Berg and Thiamine

3. **Researching the Correct Pair**: Among the options, the pair that is most recognized for their work on auxins and apical dominance is Thiamine and Scoog. They conducted experiments that demonstrated the role of auxins in promoting the growth of the apical bud while inhibiting the growth of lateral buds.

4. **Explaining the Mechanism**: Auxins are produced in the apical bud and promote vertical growth. When the apical bud is intact, it produces a high concentration of auxins, which suppresses the growth of lateral buds. If the apical bud is removed, the concentration of auxins decreases, allowing lateral buds to grow.

5. **Conclusion**: Based on the experimental evidence provided by Thiamine and Scoog, it is clear that they are the scientists who proved that auxins are responsible for apical dominance.

**Final Answer**: The scientists who experimentally proved that auxins were responsible for apical dominance are Thiamine and Scoog.

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