Department of Horticulture, College of Agriculture Rewa (M.P.).
* Correspondence address: Instrument development and Service Centre, College of Agriculture, J.N.K.V.V., Jabalpur (M.P.).
The experiment was carried out to study the response of micronutrients viz; zinc, iron and copper a1ongwith growth regulator NAA 30 and 50 ppm on growth and yield of onion significant variations was observed in the response of micronutrients as well as growth regulator on growth, yield traits and economics. Among micronutrients copper 0.5% showed the best response in growth and yield traits viz; height of p1ant (61.35 cm), number of leaves (10.20), neck diameter (1.95 cm), fresh weight of bulb (78.63 g), bulb diameter (4.99 cm) and yield (329.703 q/ha) as compared to other micronutrients over check. Growth regulator NAA 50 ppm gave the highest plant height (61.63 cm), number of leaves l0.25), neck diameter (1.98 cm), fresh weight of bulb (78.71 g), bulb diameter (5.08 cm) and yield per hectare (337.166 q) as compared to NAA 30 ppm over control. In regard to economics optimum net return of Rs. 66099 ha−1 with 1.88 B.C ratio was recorded in NAA 50 ppm followed by copper 0.5% Rs.63423 ha−1.
Growth regulator, Micro-nutrients, Growth traits, Zinc, Copper, Iron, Yield
