Global climate change is bound to create a number of abiotic and
biotic stresses in the environment, which would affect the overall
growth and productivity of plants. Like other living beings, plants
have the ability to protect themselves by evolving various
mechanisms against stresses, despite being sessile in nature. They
manage to withstand extremes of temperature, drought, flooding,
salinity, heavy metals, atmospheric pollution, toxic chemicals and
a variety of living organisms, especially viruses, bacteria, fungi,
nematodes, insects and arachnids and weeds. Incidence of abiotic
stresses may alter the plant-pest interactions by enhancing
susceptibility of plants to pathogenic organisms. These
interactions often change plant response to abiotic stresses. Plant
growth regulators modulate plant responses to biotic and abiotic
stresses, and regulate their growth and developmental cascades. A
number of physiological and molecular processes that act together
in a complex regulatory network, further manage these responses.
Crosstalk between autophagy and hormones also occurs to develop
tolerance in plants towards multiple abiotic stresses. Similarly,
biostimulants, in combination with correct agronomic practices,
have shown beneficial effects on plant metabolism due to the
hormonal activity that stimulates different metabolic pathways. At
the same time, they reduce the use of agrochemicals and impart
tolerance to biotic and abiotic stress. Further, the use of bio-
and nano-fertilizers seem to hold promise to improve the nutrient
use efficiency and hence the plant yield under stressful
environments. It has also been shown that the seed priming agents
impart stress tolerance. Additionally, tolerance or resistance to
stress may also be induced by using specific chemical compounds
such as polyamines, proline, glycine betaine, hydrogen sulfide,
silicon, -aminobutyric acid, -aminobutyric acid and so on. This
book discusses the advances in plant performance under stressful
conditions. It should be very useful to graduate students,
researchers, and scientists in the fields of botanical science,
crop science, agriculture, horticulture, ecological and
environmental science.
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