The effect of mineral deficiencies involving fairly mobile nutrients will be observed in

Options

A. Older portions of the plant
B. New leaves.and shoot
C. The root system
D. The color of leaves

Answer

**Step-by-Step Solution:**

1. **Understanding Mobile and Immobile Nutrients**:
- Nutrients in plants can be categorized as mobile or immobile. Mobile nutrients can be transported within the plant from older tissues to younger tissues.

2. **Identifying Mobile Nutrients**:
- Common mobile nutrients include nitrogen, phosphorus, potassium, magnesium, and sulfur. These nutrients are essential for various physiological processes and are actively moved to areas of growth.

3. **Effect of Deficiency**:
- When there is a deficiency of mobile nutrients, the plant will first utilize the nutrients stored in older tissues to support the growth of new tissues.

4. **Observation of Deficiency Symptoms**:
- Since the mobile nutrients are being redirected to the younger parts of the plant, the symptoms of deficiency will manifest in the older parts. This is because the older tissues are losing their nutrient content to support the younger, developing tissues.

5. **Conclusion**:
- Therefore, the effect of mineral deficiencies involving fairly mobile nutrients will be observed in the older portion of the plant.

**Final Answer**: The effect of mineral deficiencies involving fairly mobile nutrients will be observed in the older portion of the plant.

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