ABSTRACT
Rapid climate change is causing abiotic stress on a mass level, threatening crop production especially in cereals. Frequent climate changes and reappearance of abiotic stresses are the major threats to food security and sustainability for the crop production system. Drought and heat are evident ones among other stresses, causing significant reduction in yields. These stresses have emerged as a major concern in sustainable agriculture, as food demand is increasing with every passing day. In addition to other strategies, we emphasise the use of plant growth regulators for protection against various environmental stress; this is a viable approach to make crop production more resilient to short exposures to drought and heat stresses. In this chapter we will discuss in detail the use of a few plant growth regulators which help in developing crop species that are resilient to climate change, particularly drought and heat stress.
