function calculateGermination() {
// 1. Get input values using 'var'
var plantedInput = document.getElementById('seedsPlanted');
var germinatedInput = document.getElementById('seedsGerminated');
var resultsDiv = document.getElementById('results');
// 2. Parse values
var planted = parseFloat(plantedInput.value);
var germinated = parseFloat(germinatedInput.value);
// 3. Validation Logic
if (isNaN(planted) || planted <= 0) {
alert("Please enter a valid total number of seeds planted (must be greater than 0).");
return;
}
if (isNaN(germinated) || germinated planted) {
alert("The number of germinated seeds cannot exceed the total seeds planted.");
return;
}
// 4. Calculate Rate
var rate = (germinated / planted) * 100;
var failed = planted – germinated;
// 5. Determine Rating and Advice
var ratingText = "";
var ratingClass = "";
var adviceText = "";
if (rate >= 90) {
ratingText = "Excellent";
ratingClass = "rating-excellent";
adviceText = "Optimal conditions met. Seed viability is high.";
} else if (rate >= 75) {
ratingText = "Good";
ratingClass = "rating-good";
adviceText = "Standard industry performance. Conditions are adequate.";
} else if (rate >= 50) {
ratingText = "Average";
ratingClass = "rating-average";
adviceText = "Check temperature, moisture, or seed age.";
} else {
ratingText = "Poor";
ratingClass = "rating-poor";
adviceText = "Seeds may be old or environmental conditions were incorrect.";
}
// 6. Update HTML Output
document.getElementById('rateResult').textContent = rate.toFixed(2) + "%";
document.getElementById('failedResult').textContent = failed;
document.getElementById('adviceResult').textContent = adviceText;
var ratingBadge = document.getElementById('ratingResult');
ratingBadge.textContent = ratingText;
ratingBadge.className = "rating-badge " + ratingClass;
// 7. Show Results
resultsDiv.style.display = "block";
}
Understanding Germination Rate Calculation
Whether you are a home gardener, a commercial farmer, or a seed distributor, understanding the germination rate of your seeds is crucial for predicting crop yield and managing resources efficiently. The germination rate is the percentage of seeds that successfully sprout and begin to grow under favorable conditions.
How to Calculate Germination Rate
The mathematical formula for calculating germination rate is straightforward. It is the ratio of sprouted seeds to the total number of seeds planted, expressed as a percentage.