Phenotypic Variation within a Jordanian Landrace of Durum Wheat ＂Safra Ma＇an＂ （Triticum turgidum L, var, Durum）
Phenotypic Variation within a Jordanian Landrace of Durum Wheat ＂Safra Ma＇an＂ （Triticum turgidum L, var, Durum）
摘要
Two hundred and eighty six lines were selected randomly from the tetraploid wheat （Tritieum turgidum L.var Durum） landrace ＂Safra Ma＇an＂. The whole population with three check cultivars （ACSAD 65, HOURANI 27 and AMRA） was evaluated at Maru Agriculture Research Station for 16 characters including grain yield per plant. The objectives were to assess the magnitude of phenotypic variations for the traits in ＂Safra Ma＇an＂ and to evaluate the potential usefulness of some of the traits identified. Results showed wide range of phenotypic variation for several traits. Monomorphism was common for juvenile growth habit, whereas, the rest of the characters exhibited polymorphism in varying degrees. Considering all characters, the average diversity （H＇） for ＂Safra Ma＇an＂ landrace was 0.65 ± 0.047. Ten lines were superior to the check （HOURANI 27） for grain yield per plant. Subsequently, the population lines were clustered into six distinct groups at a distance of about 0.55 based on their similarity for all traits, ACSAD 65 and AMRA located in separate clusters, whereas, HOURANI 27 cultivar was presented in cluster with the most lines of ＂Safra Ma＇an＂. Thirteen lines from the population showed a bluish green cast or glaucousness characters. Glaucous lines had greater kernels per spike. In contrast, this character showed no significant association with grain yield per plant despite the greater grain yield per plant obtained for the glaucous lines. The results are important for the breeding and selection in this land race.
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