If a seed tag stated percent germination at 80% and the purity at 90%, what is the pure live-seed ratio?

To find the pure live-seed ratio, you can use the formula:

Pure Live Seed (PLS) = (Germination Percentage × Purity Percentage) / 100

In this scenario, the seed tag states a germination percentage of 80% and a purity of 90%. Plugging these values into the formula gives:

PLS = (80% × 90%) / 100

PLS = 7200 / 100

PLS = 72%

This calculation indicates that 72% of the seed is live and capable of germinating successfully. A pure live-seed ratio of 72% means that even though the seed may contain other non-seed materials or less viable seeds, 72% of its total weight is made up of seeds that will grow into plants under ideal conditions. This value is crucial for farmers and agronomists when determining the effectiveness and quality of seed being planted.