Genotype x Environment Interaction and Phenotypic Stability Analysis for Grain Yield and several Quality Traits of Durum Wheat in the South-Eastern Anatolia Region


NOTULAE BOTANICAE HORTI AGROBOTANICI CLUJ-NAPOCA, vol.38, no.3, pp.253-258, 2010 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 3
  • Publication Date: 2010
  • Page Numbers: pp.253-258


The objectives of this study were to assess genotype x environment (GEI) interaction and to determine stability of 14 durum wheat (Triticum turgidum var durum Desf) cultivars for grain yield test weight thousand grain weight (TGW) vitreousness protein content ash content and SDS sedimentation volume Cultivars tested in a randomized complete block design with four replications across 8 environments of South Eastern Anatolia Region of Turkey wee analyzed using four parametric stability inmates (b(t) S-at R-2 and a) A high GEI was determined for all traits According to the stability analysis Balcalt 2000 Firat 93 and Altintoprak 98 were the most stable for grain yield These cultivars had high mean gram yield and were non significant regression coefficient different from unity (b = 1 0) coefficient of determination (R) as high as possible Although some cultivars were stable I'm one quality trait and unstable for another the study of genotypic stability showed that Balcalt 2000 cultivar had high stability for quality characteristics and determined to be the best within the pool of the studied cultivars Furthermore the estimated values of broad sense heritability (H-2) were found between 303% and 94 396 Hi was low for vitreousness (30 3%) and ash contents (36 0%) while found high for thousand grain weight (94 3%) SDS volume (83 0%) and protein contents (75 2%) Grain yield (62 6%) and test weight (54 696) were as moderate