عنوان مقاله [English]
Salinity stress is a major constrain of plant growth and limiting factor of crop production. Wheat cultivar Narin is derived from the cross between an Iranian salt tolerant wheat line (1-66-22) and Pishtaz cultivar as female and male parents, respectively, at Seed and Plant Improvement Institute, Cereal Research Department in Karaj and subsequent selection among segregating populations done at experimental field of Yazd station.Results of yield trials and on-farm evaluations in the temperate and warm zone showed that under salinity stress conditions (EcSoil =8-13 dsm-1&EcWater =8-11 dsm-1), Narin exhibited a superior performance compared to the check cultivars Bam, Kavir, Neishoubour and Roshan, and its average grain yield was 809 kg (19% Percent) higher than average grain yield of check cultivars. Based on ranking method Narin had high stability and adaptibility in saline condition compared to check cultivars. Unser farmer`s conditions, its average grain yield was 4474 kg ha-1, nearly 22% higher than average grain yield of check cultivars (3664 kg ha-1). Narin exhibits lodging resistance and has non-shattering spikes, but has moderately resistant to moderatelt susceptible infection responses to rusts. However, under dry conditions of saline areas of Iran no susceptibility to these diseasesis observed. Based on good agronomic performance such as early maturity, resistance to lodging and shattering, and high adaptability and stability and good quality under saline conditions compared to checks (Bam, Arg and Ofogh), Narin was released for cultivation in saline areas (with water/soil salinity) of temperate and warm zone in Iran.