Combining General and Special Ability and Genetic Action of Linum Usitatissimum L.

Abstract This study used eight genetic structures of Linum Usitatissimum L. (Sakha1, Sakha2, Sakha3, Sakha5, Sakha6, Giza, Syrian and Poloni) their half-exchange satire obtained according to the second method proposed by Griffing (1956). Genetic compositions (8 parents + 28 hybrids) were planted in fields Faculty Agriculture/University Kirkuk winter season (2021-2022) full random sectors (RCBD) with three repeats studied qualities (Plant rise, number days flowers, 50%, Knot, physiological maturity, branches, capsules, capsule seeds, weight 1000 biological product, seed product harvest guide) assessing combining public private capacities. The results can be summarized as majority second-generation hybrids differ morally all characteristics at a probability level (1%) And (5%), ratio between components variation general capacity special was less than correct one for flowers days, knot, guide, height plant, 1,000 ripening plant (cm), branches quotient, best father (Giza 8) found have ability qualifications crop crop. hybrid (Sakha 5 * Sakha 2) gave characterize plant’s height, flowering, seed, capsules Dominance values greater additional except crop, inheritance broad sense high flowering that medium, narrow slow those seeds degree rate dominance right studied, because verb is controller these qualities. projected improvement percentage low