1. What is Seed Germination Percentage?

The seed germination percentage measures the proportion of seeds that successfully germinate and emerge as plants from a given batch. It's a key quality indicator for seed viability and planting success.

2. How Does the Calculator Work?

The calculator uses the simple germination formula:

Where:

• \( Emerged\ Plants \) — Number of plants that successfully emerged
• \( Planted\ Seeds \) — Total number of seeds planted

Explanation: The formula calculates the percentage of seeds that successfully germinated from the total planted.

3. Importance of Germination Testing

Details: Germination testing helps farmers determine seed quality, optimal planting rates, and potential crop yield. It's essential for planning planting density and seed purchases.

4. Using the Calculator

Tips: Count all emerged plants and enter the number along with the total seeds planted. Ensure emerged plants ≤ planted seeds for valid results.

5. Frequently Asked Questions (FAQ)

Q1: What is a good germination percentage for corn?
A: Commercial corn seed typically has 90-95% germination. Below 85% may require higher seeding rates.

Q2: How many seeds should I test for accurate results?
A: For reliable results, test at least 100 seeds divided into replicates of 25-50 seeds each.

Q3: When should I count emerged plants?
A: Count after the expected germination period (usually 7-10 days for corn under ideal conditions).

Q4: Does this account for field conditions?
A: No, this is a lab-style calculation. Field germination is typically 5-10% lower due to environmental factors.

Q5: How does temperature affect germination?
A: Corn germinates best at soil temperatures of 50-86°F (10-30°C). Cooler temperatures slow germination.