Use Seedling Vigor Index when you need to compute the documented seedling vigor index as germination percent times seedling length in centimeters. Enter Germination percent and Seedling length using the definitions and units below so the result can be reproduced.

Germination percent

Germination percentage between 0 and 100.

Seedling length

Seedling length in centimeters; must be greater than zero.

The published tool contract uses this rule: Compute the documented seedling vigor index as germination percent times seedling length in centimeters.

Seedling vigor index

Seedling vigor index in percent-centimeters.

The calculation does not propagate measurement uncertainty, sampling error, or biological and chemical variability. Germination percent must remain between 0 and 100.

Retain the original Germination percent and Seedling length values and their units alongside the result. Vigorous Seedling Index is useful when you instead need to compute the vigorous seedling index as seedling dry mass in milligrams times the germination percentage divided by one hundred. Seed Vigor Index provides another view by helping you compute the seed vigor index as germination percent times seedling length in centimeters divided by one hundred.

• Vigorous Seedling Index

  Compute the vigorous seedling index as seedling dry mass in milligrams times the germination percentage divided by one hundred.

• Seed Vigor Index

  Compute the seed vigor index as germination percent times seedling length in centimeters divided by one hundred.

• Seedling Length Vigor

  Compute the seedling length vigor as the shoot length plus the root length in centimeters.