The aging process Sometimes used to describe lakes or other bodies of water in advanced stages of eutrophication Also used to describe plants and animals
Terminal life phase of plants, characterized by the irreversible deterioration of tissue
Nodules formed on the root of a host have a finite life span, usually 50-60 days Plants can have several "crops" of nodules in a single growing season, and in leguminous trees current nodules may be at some distance from the stem The breakdown of nodules over time is called senescence
Deteriorative changes of an organ or whole plant preceding death (organ senescence, whole plant senescence) There can also be 'sequential senescence' (leaves along a branch) and 'synchronous senescence' (all at the same time)
death of a leaf triggered by an increase in the enzymes that promote the breakdown of plant cells Begins when shorter days and cooler temperatures occur