Plant growth regulators (PGRs) are chemicals that regulate the growth and development of plants, while plant growth promoters (PGPs) are substances that promote plant growth. In the case of cotton, PGRs and PGPs play a crucial role in ensuring optimal growth and yield of the crop.
One of the key PGRs used in cotton cultivation is gibberellic acid. Gibberellic acid promotes cell elongation, seed germination, and flowering in cotton plants. By regulating these processes, gibberellic acid helps in increasing the overall growth and productivity of cotton plants.
Another important PGP in cotton cultivation is cytokinin. Cytokinin promotes cell division and differentiation, leading to increased shoot and root growth in cotton plants. By stimulating these processes, cytokinin helps in enhancing the overall vigor and health of cotton plants.
Other PGRs and PGPs commonly used in cotton cultivation include auxins, ethylene, and brassinosteroids. These chemicals help in regulating various physiological processes in cotton plants, such as root development, flowering, and fruit setting.
It is important for cotton growers to understand the role of PGRs and PGPs in cotton cultivation and to use them judiciously. Proper application of these chemicals at the right growth stages can significantly improve the growth, yield, and quality of cotton crops.
In conclusion, PGRs and PGPs play a crucial role in cotton cultivation by regulating various growth processes in cotton plants. By understanding the functions of these chemicals and using them effectively, cotton growers can maximize the yield and quality of their crops.