STABILITY ANALYSIS OF BREAD WHEAT UNDER DIFFERENT ENVIRONMENTS | ||||
| Egyptian Journal of Plant Breeding | ||||
| Volume 20, Issue 5, September and October 2016, Page 885-902 PDF (690.58 K) | ||||
| Document Type: Original research | ||||
| DOI: 10.12816/ejpb.2016.361008 | ||||
 View on SCiNiTO | ||||
| Abstract | ||||
| A great challenge for wheat breeding programs is increasing yield without sacrificing its stability. This study presents the yields and stability parameters of 43 bread wheat genotypes, tested in 10 diverse environments in Egypt during the two growing seasons 2013/2014 and 2014/2015. These environments distributed along the Egypt map from 215 m above sea level (asl) at Toshka in south Egypt to 22 m asl at El-Nobaria in the north. The separate field trials were arranged in randomized complete block design with 3 replications then combined analysis of variance was performed for the obtained data. The diversity of conditions included in the study was reflected by large variation of a grain yields/plant of the 43 genotypes, which varied from 1.50 g/plant to 77.34 g/plant. It was concluded that the most stable genotypes were G14 and G18 over all the environments while genotype G30 was found to be the best performer under the poorer conditions. Moreover, genotypes considered to be stable for grain yield were not stable for other characters except genotype G14 which was stable for grain yield and spike number per plant. | ||||
| Keywords | ||||
| Wheat; Yield; Stability | ||||
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