Germination Rate Index
Compute the germination rate index over two days as (day one count / 1 + day two count / 2) / seeds sown times 100, expressed in percent per day.
Description
Compute the germination rate index over two days as (day one count / 1 + day two count / 2) / seeds sown times 100, expressed in percent per day.
Germination Rate Index is a focused biology tool that compute the germination rate index over two days as (day one count / 1 + day two count / 2) / seeds sown times 100, expressed in percent per day. It calculates locally from the values you enter and exposes the result without changing the source observations.1
When to use Germination Rate Index
Use Germination Rate Index when you need to compute the germination rate index over two days as (day one count / 1 + day two count / 2) / seeds sown times 100, expressed in percent per day. Enter Day one germinations, Day two germinations, and Seeds sown using the definitions and units below so the result can be reproduced.
- Day one germinations
- Seeds germinated on day one; must not be negative.
- Day two germinations
- Seeds germinated on day two; must not be negative.
- Seeds sown
- Number of seeds sown; must be at least one.
How Germination Rate Index calculates the result
The published tool contract uses this rule: Compute the germination rate index over two days as (day one count / 1 + day two count / 2) / seeds sown times 100, expressed in percent per day.
- Germination rate index
- Germination rate index in percent per day.
Limitations of Germination Rate Index
The calculation does not propagate measurement uncertainty, sampling error, or biological and chemical variability.
Alternative or Complementary measurements
Retain the original Day one germinations, Day two germinations, and Seeds sown values and their units alongside the result. Germination Energy % is useful when you instead need to compute germination energy as the seeds germinated by the peak day divided by the seeds sown times one hundred; the peak day is the day on which the daily germination count is highest and only counts up to that day are included. Germination Capacity % provides another view by helping you compute germination capacity as the total seeds germinated over the whole assay divided by the seeds sown times one hundred.
References
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Germination — Wikipedia contributors
Similar or alternative tools
- Germination Energy %
Compute germination energy as the seeds germinated by the peak day divided by the seeds sown times one hundred; the peak day is the day on which the daily germination count is highest and only counts up to that day are included.
- Germination Capacity %
Compute germination capacity as the total seeds germinated over the whole assay divided by the seeds sown times one hundred.
- Stomatal Index SI
Compute the stomatal index in percent as the stomata count times one hundred over the total of stomata plus epidermal cells.