Effect of Cultivars and Nitrogen Fertilizer on Growth and Yield Components of Black Barley

Abstract

Abstract A field experiment was carried out in Babylon Governorate, Al-Qasim Green University - College of Agriculture -in the fields Continue of the Field Crops Department during the winter agricultural season at 2022-2023 to study the response of three cultivars of black barley “Zanbaka”, “Mosul 1” and “Local Black” to add nitrogen fertilizer at level of 0, 60 and 120 kgNha-1, the combinations of treats were distributed in a factorial experiment according to Randomized Complete Block Design (RCBD) with three replicates. The data were collected and analyzed according to the variance analysis table and the averages were tested according to least significant difference (LSD) at probability level 0.05. The results showed a significant superiority of “Zanbaka” cultivar in the appearances of main stem height and number of grains in spike, while cultivar “Mosul 1” were significantly superiorin flag area, total chlorophyll, number of spikes, weight of 1000 grains, biological yield, and total grain yield (3.44 tons ha-1), while the fertilizer at level 60 kgNha-1 significantly superior in flag area, total chlorophyll, number of spikes, number of grains, weight of 1000 grains, biological yield, and total grain yield (3.82 tons ha-1). It was significantly superior to the intervention treatment, Zanbaka x 120 kg.ha-1, in terms of main stem height. It also significantly outperformed the intervention treatment of Mosul 1 Cultivar × 60 kgNha-1 In the characteristics of the leaf area, the total chlorophyll pigments index, the weight of a thousand grains, the grain yield of 4.05 tons ha-1, and the harvest index.