presence/absence sampling
Presence/absence sampling: a method of sampling that is used to determine the presence or absence of a particular species in an area.
Presence/absence sampling: a method of sampling that is used to determine the presence or absence of a particular species in an area.
Primary bloom: the first flush of flowers that appear on a plant.
Primary Infection: the initial infection of a plant by a pathogen.
Primary Inoculum: the initial inoculum of a pathogen on a plant.
Primary roots: the first roots to develop from a seedling.