Flowering Physiological, Biochemical and Molecular Aspects

Flowers are the source of love, affection, emotions, inspiration on one hand, while it is the prime source of fruits and seeds that make up the bulk of the world's food supply has given near-religious significance to flowering in many cultures. Plants have evolved mechanisms by which leaf senescence can be induced by many stresses to reallocate mutrients to reproductive organs and to eliminate water consumption by older, less productive leaves.

This regulation of leaf senescence has an obvious adaptive value, allows in the plant to complete its life cycle even under stressful condition.

Senescence is a correlative event and is the cumulative effect to the formation of flowers, fruits, seeds, apices and roots.

Senescence is a mechanism, which works in favour of maintaining an ecological balance both for the intrnal milieu and the external environment of a species.