A field experiment was conducted to study the influence of foliar spray of growth regulators and KNO3 on growth and yield of cowpea variety VCM-8. NAA application enhanced biological yield, leaf weight, pods per plant, weight of individual pod and ultimately resulted in elevating the seed yield by 33%. Application of KNO and Ethrel also improved the physiological traits like biological yield, leaf weight as well as yield components like pods per plant and pod weight and resulted in an increased yield by 24% and 21% respectively over control. NAA 5 ppm exhibited maximum yield (15.28 q/ha).
