FFA Horticulture CDE General Practice Exam

What is a primary consequence of extreme overwatering in plants?

1. Drowning due to excess water

2. Fungal infections in the soil

3. Increased greenhouse gases

4. Soil erosion

The correct answer is: Drowning due to excess water

Extreme overwatering can lead to a condition commonly referred to as drowning in plants. This happens because too much water fills the air spaces in the soil, preventing oxygen from reaching the plant roots. Roots require oxygen for respiration, and without it, they cannot function properly. This lack of oxygen can lead to root rot, a serious condition that compromises the plant's ability to absorb nutrients and water, ultimately leading to its decline and death. While fungal infections, increased greenhouse gases, and soil erosion can occur in various environmental conditions, they are not the primary consequence of extreme overwatering. Fungal infections may arise following the onset of root rot, but they are secondary results rather than the direct outcome of excessive watering. Increased greenhouse gases typically relate to broader environmental issues, not directly tied to the watering practices of individual plants. Soil erosion is influenced by factors such as wind, water flow, and soil health, making it unrelated to the immediate effects of overwatering. Therefore, the direct consequence that stands out in this context is indeed the drowning of the plant due to excess water.