Turfgrass Management Terms I
Impact testing - a measurement of the hardness of a playing surface. A weight is dropped from a given height through a guide tube. An accelerometer is mounted inside the weight and measures the maximum deceleration upon impact with the surface
Infect - become established in a parasitic relationship with a host plant
Infiltrate - filter into; the penetration of water through soils
Inflorescence - complete flowering part of the plant, including the stem, stalk and all its flowers. The arrangement of an inflorescence can often be complex, with multiple flowers coming off a single stalk
Inorganic fertilizer - plant nutrients derived from mineral rather than organic sources
Irregular - no visible pattern of damage the turf due to the disease spread
Insecticide - chemical used to destroy insects
Internode - portion of a stem between 2 successive nodes or joints
Involute - rolled inward on the upper surface
Introduced - species which have been brought into North America
Invader - undesirable range plants which invade and take over a range after the decreasers and increasers are largely gone