Role of auxins as plant growth regulators for potato productivity and quality in Hardwar district

One of the most fill important food crops in India is the potato (Solanum tuberosum L.). It is a vital source of carbohydrates and income for farmers. In India, improving potato productivity and quality is an urgent necessity, especially in significant agricultural regions like Haridwar district, where Agriculture is a primary source of rural livelihood. Plant Growth Regulators (PGRs), and specifically auxins, are increasingly playing a role in crop improvement efforts, since they positively influence physiological and biochemical processes in plants. Auxins influence cellular elongation, apical dominance, root initiation, tuberization and nutrient partitioning - all of which are important to potato growth and development. In this research experiment, we are specifically focused on auxins as PGRs, and their effect on potato productivity and tuber quality in the agro-climatic conditions of Haridwar. Field experiments were conducted to assess the effect of different PGR concentrations administered through various application techniques on growth parameters, yield attributes, and post-harvest quality of tubers. Initial observations suggest that auxin application has a significant positive impact on root proliferation, tuber initiation and bulking which corresponded to higher yield and marketable quality. Additionally it was observed that auxin application may have improved uniformity of tubers, tuber size distribution and resistance to physiological disorders. The study indicates that the appropriate use of auxins as plant growth regulators (PGRs) can be an inexpensive and sustainable agronomic practice to increase production and quality of potato in Haridwar district, which should help to support food security and farm income.