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In this study, bread wheat segregating populations and generations including: 118 F2’s, 575 F3’s, 267 F4’s, 107 F5’s and 239 F6 lines, using modified pedigree- bulk method were evaluated. Totally, 524 single plants from F2, 134 F3, 110 F4, 198 single plants of F5 and 146 lines from F6 generation were selected to be studied in next generations and Preliminary bread wheat screening nursery experiment (PWSN) in next cropping season. Also 32 of the best lines compares to checks from PWSN, was selected for PRWYT of next cropping season of southern dry and warm and temperate zones. Some important traits, such as: resistance to diseases, lodging, and grain shattering, good tillering, plant height, early maturity and seed health have been considered as selection criteria. Keywords: Triticum aestivum L., Recombination, segregating generation, Modified pedigree-bulk method
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