Assessment of Dual-purpose Barley Varieties under Varying Nitrogen Management Regimes (Hordeum vulgare L.)

A field experiment was conducted during the Rabi season of 2025–26 at the Agriculture Research Farm, Department of Agronomy, Tantia University, Sri Ganganagar, Rajasthan, to assess the performance of dual-purpose barley varieties under varying nitrogen management regimes. The experiment was laid out in a Factorial Randomized Block Design (FRBD) with three replications, comprising three varieties, viz., RD 2715, RD 2786 and RD 2552, and three nitrogen levels, viz., 75%, 100% and 125% of the recommended dose of nitrogen (RDN). Among the varieties, RD 2715 recorded the highest plant height (68.61 cm), number of tillers (7.58 plant⁻¹), dry matter accumulation (25.65 g plant⁻¹), grain yield (4,255 kg ha⁻¹), straw yield (4,690 kg ha⁻¹) and biological yield (8,944 kg ha⁻¹). Among nitrogen treatments, 125% RDN recorded the highest plant height (65.95 cm), number of tillers (7.10 plant⁻¹), dry matter accumulation (24.90 g plant⁻¹), grain yield (4,135 kg ha⁻¹), straw yield (4,806 kg ha⁻¹) and biological yield (8,942 kg ha⁻¹). Grain yield and biological yield under 125% RDN were statistically at par with those under 100% RDN. The interaction between varieties and nitrogen management regimes was non-significant for all the recorded parameters. The findings indicated that RD 2715 exhibited superior overall performance, while 125% RDN produced the highest numerical values for most growth and yield parameters under the experimental conditions.