Abiotic stresses effect on plants physical and chemical events, and role of melatonin against abiotic stresses in regulating plant growth, biochemical traits, antioxidant activities and plant Metabolic System

Abstract

Abiotic stress like drought, salinity, high and low temperature, flood, radiation, heavy metals,
oxidative stress, and nutrient shortage harmfully disturb growth rate, quality and productivity of
plants. Melatonin as a plant growth regulator was discovered in 1995 in plants and holdup a
strong position due to its affect in plants environment. Melatonin shown a considerable character
in plant growth response, development, re-production and various biotic stresses. Moreover,
melatonin performs a resistive character against stresses like drought, salinity, metal toxicity.
Melatonin important character in plant system is to lighten the harmful effect of abiotic stresses.
In this evaluation we have investigate the effect of melatonin on growth, physiology,
photosynthesis behavior, metabolic response, and bio-chemistry of plant under stresses (abiotic
and abiotic) environment.