Effect of Growth Regulator (ATONIK) and Zn-Nano-Fertilizer on Sweet Pepper (Capsicum Annuum L.)

Abstract

Abstract To determine the effects of foliar spraying with growth regulator (Atonik) and Nano-Zinc in sandy loam soil on the Qurtuba cultivar of sweet pepper, Capsicum annuum L., a field experiment was conducted in a non-heated plastic house at a specified field at coordinate during the autumn of 2022. A factorial experiment was constructed using the RCBD method, and the average was compared using an LSD with a 5% level of significance. Both the growth regulator (Atonik) and Nano-Zinc fertilizer were applied in three replicates at four different concentrations (0, 25, 50, and 75 mg L-1) each. An increase in plant height, number of branches, and leaf area was seen after spraying with the growth regulator at the level (75 mg L-1). With averages of (98.4 cm, 6.1 branch, 2157.7 cm2, 101.3 gm, 53.7 spad, 1.85%, 0.61%, and 2.01%) for dry weight of the vegetative group, leaf chlorophyll content, nitrogen, phosphorus, and potassium, respectively. Nano-Zinc sprayed at a dosage of 6 gm L-1 resulted in significant increases in all of the aforementioned metrics compared to the control treatment, with average increases of 94.8 cm, 6.0 branches, 2049.8 square centimeters, 100.5 grams, 52.3 spads, 1.78%, 0.59%, and 1.88 percent. By assigning the highest possible values to the interaction spraying treatment (75 mg L-1 + 6 gm L-1), it was shown that this treatment excelled over other interaction treatments.