Abstract:
Chitosan is a versatile biopolymer derived from chitin, a natural compound found in the exoskeletons of crustaceans such as shrimp and crabs, as well as in the cell walls of fungi. In agriculture, chitosan has gained attention for its diverse applications and positive effects on plant growth and protection. Therefore, this study was conducted during Kharif 2019, 2020, and 2021 to investigate the impact of varying concentrations of chitosan morpho-physiological parameters and yield of soybean. The pooled results of the experiment revealed that, among the ten concentrations of chitosan tested, foliar application of chitosan @ 60 ppm at 25 and 40 days after sowing (DAS) significantly enhanced all morpho-physiological parameters including plant height(52.53 cm), number of branches (4.53/plant), leaf area (32.14 dm2), dry matter(19.73 g), hundred seed weight (15.20 g), number of pods (36.67/plant), nitrogen content in leaves(6.0 %), chlorophyll content(1.94 mg/g), and soybean yield (24.24 q/ha).