Use Germination Percentage when you need to compute germination percentage as germinated seeds divided by seeds sown times one hundred. Enter Germinated seeds and Seeds sown using the definitions and units below so the result can be reproduced.

Germinated seeds

Number of seeds that germinated; must not exceed seeds sown.

Seeds sown

Number of seeds sown; must be at least one.

The published tool contract uses this rule: Compute germination percentage as germinated seeds divided by seeds sown times one hundred.

Germination

Germination percentage between 0 and 100.

A ratio or percentage can conceal the scale of its numerator and denominator and becomes sensitive to measurement error when the denominator is small.

Retain the original Germinated seeds and Seeds sown values and their units alongside the result. Germination Capacity % is useful when you instead need to compute germination capacity as the total seeds germinated over the whole assay divided by the seeds sown times one hundred. Germination Energy % provides another view by helping you 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.

• 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 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.