Agronomic Performance of Rainfed Barley Genotypes under Different Tillage Systems in Highland Areas of Dryland Conditions

Conservation agriculture (CA) is becoming increasingly attractive to farmers due advantages such as lower production costs and less destruction of soil structures compared the conventional tillage. The cultivars introduced for systems may not be suitable under CA environments, newly adapted need developed. Accordingly, four separate field experiments were conducted over two cropping seasons (2018–2019 2019–2020) study agronomic performance seven barley genotypes three tillage systems: (full with residue removed), reduced (chisel plowing retained) system (no retained on surface). grown rainfed conditions in different agro-ecological regions (Kamyaran Hosseinabad locations) west Iran. Significant genotypic differences observed grain yield components except 1000-kernel weight. results this showed that a produced yields equal to, or better (0.7%) than, tillage; while decreased their by 4.9%. Regarding genotype × interaction, Catalhuyuk 2001 Bulbule positively interacted higher than other genotypes, whereas Çumra 2001, Ansar Abidar expressed highest system. Consequently, Bulbule, Gumharriyet 50 outperformed domestic amount adaptation tested environments. present could useful improve efficiency cultivation open new windows cereal arid semi-arid food security concerns.