Some people with chest pain have normal or minimal narrowing of heart arteries; in these patients, vasospasm is a more likely cause for the pain, sometimes in the context of Prinzmetal's angina and syndrome X.
You are here. Pure Live Seed. Pure live seed (PLS) is a measure used by the seed industry to describe the percentage of a quantity of seed that will germinate. PLS is obtained by multiplying the purity percentage by the percentage of total viable seed, then dividing by 100.
Calculate pure-live seed. The sample seed tag featured on page 33 shows how the needed figures are presented on seed tags. Seed tag information is regulated, so all tags will contain essentially the same information as that shown. First, find the percent germination.