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.
Foundation seed shall be the progeny of Breeder or Foundation seed handled . under procedures acceptable to the certifying agency to maintain satisfactory . genetic purity and identity. The class is of a quality suitable for the production of . Registered or Certified seed. Registered seeds and plants are the progeny of Breeder or Foundation seed or plants and are the and are produced and handled under procedures established in accordance with federal requirements, by a seed or plant certifying agency for