Production of glucose takes place in green part of plant is established by

Answer

**Step-by-Step Solution:**

1. **Identify the Key Concept**: The question asks about the establishment of glucose production in the green parts of plants.

2. **Historical Context**: The concept was established by Julius von Sachs in 1854. This is an important detail as it provides a historical basis for the understanding of photosynthesis.

3. **Understanding the Role of Green Parts**: It is essential to note that the green parts of plants, primarily the leaves, are responsible for the production of glucose. This occurs due to the presence of chlorophyll, which captures sunlight.

4. **Photosynthesis Process**: Photosynthesis is the process through which plants synthesize their own food, primarily glucose, using sunlight, carbon dioxide, and water.

5. **Formation of Starch**: Julius von Sachs provided evidence that glucose produced during photosynthesis is stored in the form of starch. Starch is significant because it is the first visible product of photosynthesis.

6. **Conclusion**: Therefore, the production of glucose in the green parts of plants is established by the work of Julius von Sachs, who demonstrated that these parts produce glucose that is stored as starch.

**Final Answer**: The production of glucose in the green parts of plants is established by Julius von Sachs.

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