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The Agro’s Dictionary of Plant Physiology and Biochemistry has been prepared to provide current knowledge of the subject to the readers. With more and more specialization and expansion of the subject in last five years, many new terms have been introduced. Most of them have been incorporated in the present text.
Senescence is a suicidal impulse. It is a programmed cell death occurs universally. Senescence is a genetically programmed sequence of biochemical and physiological changes. The initiation of senescence is subject to regulation by various environmental and autonomous (internal) factors. Plants have evolved mechanisms by which leaf senescence can be induced by many stresses to reallocate nutrients to reproductive organs and to eliminate water consumption by older, ...