Stability analysis for quality traits in durum wheat (Triticum durum Desf) varieties under south Eastern Ethiopian conditions.

摘要

Stability of quality of Ethiopian-grown durum wheat varieties was investigated using many quality traits including TKW, test weight, vitreousness, ash content, flour protein, wet gluten and SDS sedimentation test. The experiment was conducted at five locations during two seasons (2004 and 2005) using randomized complete block design with three replications. Five stability parameters covering a wide range of statistical approaches and techniques were used to define stable genotypes in relation to 7 quality traits considered in this study. Some varieties were stable for one quality trait and unstable for another, suggesting that the genetic factors involved in g-e interactions differ between traits. The study of genotypic stability demonstrated that variety Ude had high stability for quality traits considered and proved to be the best with in the pool of the studied genotypes.