Influence of plant growth regulators on yield and economics of cultivation of Kalmegh (Andrographis paniculata Nees.)

Kalmegh (Andrographis paniculata Nees.) is an annual herb know as king of bitter has high value compound used in the treatment of the various diseases. An investigation undertaken to know the growth regulators influence on the yield of the crops and economics of cultivation also workedout. Among the 10 treatment, 3 different growth regulators used at different concentration to identify the best growth regulators to maximize the yield of kalmegh. Foliar spray of NAA at 50 ppm significantly increased the dry yield and drying percentage of kalmegh (3662 kg/ha and 54.5%). The maximum net return and highest B:C ratio (1,67,307 Rs/ha and 3.19) was also obtained with NAA at 50 ppm treatment.