Plant Growth Regulators and Mechanisms of Action in Crop Production

Dear Colleagues,

Plant growth regulators (PGRs) are natural biosynthesis chemicals that influence a plant's physiological functions. At present, due to changing climatic scenarios, numerous biotic and abiotic stresses lead to a decline in biological and economic yields. However, there is potential for PGRs to determine how plants react to various abiotic stresses and, in turn, contribute to adaptation to adverse environments. They play an important role in growth regulation, yield and quality enhancement, and disease management in crop plants, trees, and fruit. In plants, growth regulators exhibit characteristics such as cell differentiation and elongation, generation of leaves, flowers, and stems, wilting of leaves, ripening of fruits, and seed dormancy.

There are several mechanisms by which PGRs influence plants, including their capacity to produce hormone-like activity, their ability to enhance growth and physiological traits, and their ability to promote the activity of microbes in plant–soil environments. Monitoring of physiological activity and quantitative and qualitative parameters provides information about the variable plant response to treatments. A deeper understanding of physiological mechanisms and advances in cultivation made in the field of PGRs is important for crop production.

This Special Issue (SI) reflects on the most recent studies on plant growth regulation and its actions in crop production. Novel research, reviews, and technical articles on the function of PGRs, from controlled environmental conditions to the field, with a view toward investigating their effective use in future agriculture, are welcome.

Dr. Ali Baghdadi
Guest Editor

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• plant growth regulators (PGRs)
• secondary metabolites
• plant growth and development
• physiological
• biochemical
• and molecular mechanisms
• PGRs biosynthesis
• biostimulnt
• biotic and abiotic stress
• stress tolerance
• mode of action
• phytohormones