Stability Performance of Bread Wheat ( Triticum aestivum L . ) Lines

Abstract

The primary aim of plant breeding is to improve sta bility in yield and to obtain varieties with good quality. For this reason, a stu dy of wheat varieties was conducted in 2010, 2011, and 2012 at the Agricultural Applicatio n and Research Center fields of the Uludag University, Agricultural Faculty, in Bursa/T urkey. In the study, 22 advanced lines of bread wheat and Gonen, Pehlivan, and Flamura cul tivars as controls were examined in a 3-year experiment. In each year, the experiment w as conducted in randomized block design with three replications. The effects of cult ivars, environment, and genotype×environment interactions were evaluated. R esults of the study permitted us to distinguish three lines, namely, (Gx22-1)-4, (Gx22- 1)-6, and (GxK) which were characterized by higher adaptation capabilities and stability than those of the other genotypes. Keywords : Adaptation, Breeding lines, Genotype×environment interactions.