Genotype×tillage interaction and the performance of winter bread wheat genotypes in temperate and cold dryland conditions

Growing concerns for food security and alleviation of hunger necessitate knowledge-based crop management technologies sustainable production. In this study 13 winter bread wheat genotypes (old, relatively old, modern, breeding lines) were evaluated under three different tillage systems, i.e., conventional (CT; full with residue removed), reduced (RT; chisel retained) no-tillage (NT; retained on the soil surface) in farmer's fields rainfed conditions using strip-plot arrangements randomized complete blocks design replications West Iran (Kamyaran Hosseinabad locations) two cropping seasons (2018-2019 2019-2020). The main objectives to investigate effect systems growing agronomic characteristics, grain yield stability performance genotypes. Significant (P<0.01) genotype×tillage system interaction traits suggested that responded differently systems. number grains per spike plant height positively (P<0.0) associated NT system, may be considered as targeted future breeding. Using statistical models, modern cultivars; Sadra Baran, identified high yielding across As each “Sadra” followed by “Zargana-6//Dari 1-7 Sabalan” exhibited higher adaption CT; while cultivars “Jam” “Azar2” showed better system; “Varan” “Baran” tended have expression no-till condition. increased yields achieved combination lower costs greater profits conservation agriculture suggest adapted cultivar should promoted more widely an attractive package farmers west Iran. conclusion, variation significant effects some assessed development selection included strategies programs temperate cold dryland