Use Vigorous Seedling Index when you need to compute the vigorous seedling index as seedling dry mass in milligrams times the germination percentage divided by one hundred. Enter Seedling dry mass and Germination percent using the definitions and units below so the result can be reproduced.

Seedling dry mass

Seedling dry mass in milligrams; must not be negative.

Germination percent

Germination percentage between 0 and 100.

The published tool contract uses this rule: Compute the vigorous seedling index as seedling dry mass in milligrams times the germination percentage divided by one hundred.

Vigorous seedling index

Vigorous seedling index in percent-milligrams per hundred.

A ratio or percentage can conceal the scale of its numerator and denominator and becomes sensitive to measurement error when the denominator is small. Germination percent must remain between 0 and 100.

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

• Seed Vigor Index

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

• Seedling Vigor Index

  Compute the documented seedling vigor index as germination percent times seedling length in centimeters.

• Seedling Length Vigor

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