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In this trial 36 bread wheat advanced lines were evaluated along with two check varieties, Rakhshan and Torabi in 5 stations (Karaj, Kermanshah, Zarghan, Neishabour and Isfahan) of temperate zone. These materials have been advanced through evaluation and screening in preliminary regional wheat yield trial of last cropping season of temperate zone. Planting of the experimental materials was done in Aban, 1398 (November, 2019) and were looked after during winter. Weed control and field records for disease resistance, lodging, heading and maturity dates, plant height, kernel color, and shattering were done in spring. Experiment was performed in Karaj, Kermanshah and Zarghan under normal irrigation management and in Karaj, Neishabour and Isfahan under water deficit conditions from heading stage onward. Finally after harvesting grain yield was measured and using mean rank analysis, while considering all recorded traits and also information of disease nurseries, superior genotypes were selected. From 16 evaluated genotypes of first experiment, entries no 13, 15, 16, 17, 18, and 19, and from second experiment genotypes no 25, 26, 27,29, 30, 31, 34, 38, 39 and 40 (totally 16 genotypes) were selected to be studied in a new stability and adaptation trial in 8 stations of temperate zone during two consecutive cropping seasons i.e. 2020-2023. Key Words: Bread wheat, Yield trial, Drought tolerance, Temperate zone, stability, advanced line
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