Applications of fungicides to crops can be based on disease forecasts - Scottish Highers Biology - Question 21 - 2022
Question 21
Applications of fungicides to crops can be based on disease forecasts.
The table shows the ranges of temperature, humidity, rainfall, and light intensity that would... show full transcript
Worked Solution & Example Answer:Applications of fungicides to crops can be based on disease forecasts - Scottish Highers Biology - Question 21 - 2022
Step 1
Determine suitable fungal disease based on temperature
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Answer
The temperature of 20 °C falls within the range of disease C (16–32 °C), and is outside the ranges for diseases A (10–19 °C), B (14–29 °C), and D (11–25 °C).
Step 2
Determine suitable fungal disease based on humidity
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Answer
The humidity of 60% is suitable for diseases B (61–85%) and C (45–83%). It excludes disease A (35–60%) and disease D (42–95%).
Step 3
Determine suitable fungal disease based on rainfall
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With a rainfall of 9 mm, it fits in the range of diseases C (8–10 mm) but is outside the range for diseases A (5–9 mm), B (0–2 mm), and D (7–23 mm).
Step 4
Determine suitable fungal disease based on light intensity
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The light intensity of 6.0 units matches the range for diseases B (6.1–6.4) and C (5.3–6.3), and is below the range for disease D (2.5–3.1).
Step 5
Final determination of the most likely fungal disease
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Answer
Considering all factors together, fungal disease C is the most likely to occur since it satisfies the temperature, humidity, rainfall, and light intensity criteria.
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