گزینش لاین ها در نسل های در حال تفکیک جو برای صفات زراعی موثر در عملکرد در شرایط دیم

‭selection of lines in segregating populations for agronomic characteristics influencing yield, is important stage in cereal breeding. This study was carried out in ‬‮‭010-2009‬ ‭containing F,‬2‭F,‬3‭F,‬4‭F,‬5F6 ‭and composite F‬6 ‭generations with ‬‮‭85‬,‮‭25‬,‮‭26‬,‮‭183‬,‮‭344‬,‮‭253‬ ‭genotypes in Maragheh station.‬‮‭51‬ ‭selected genotypes from last year F‬6 ‭generation were evaluated as PBYT trial. In Ghamloo, Shirvan and Sararood stations ‬‮‭106‬,‮‭295‬ ‭and ‬‮‭240‬ ‭genotypes in F‬3 ‭generation were studied. Segregating populations were managed based on modified bulk method. Desirable plants were selected based on yield component ,early maturity, plant type , resistance to disease, cold and drought , plant height and resistance to shuttering and lodging. Finally from total studied genetic materials ,in Maragheh station‬‮‭54‬,‮‭25‬,‮‭26‬,‮‭156‬,‮‭293‬,‮‭253‬‭, genotypes were selected in F,‬2‭F,‬3‭F,‬4‭F,‬5F6 ‭and composite F‬6 ‭generations. In PBYT trial, ‬‮‭33‬ ‭high yielding genotypes were selected because of their suitable agronomic traits.In Ghamloo station, ‬‮‭161‬ ‭and in Shirvan station ‬‮‭51‬ ‭genotypes were selected. In Sararood station trial was omitted.‬

Keywords:

جو (گیاه) , ارقام , انتخاب (روش های زادگیری) , دورگ گیری , تنوع ژنتیکی , ویژگی های زراعی