Genotype by Environment Interaction and Yield Stability of Cultivars and Promising Lines of Barley over Diverse Syrian Environments


Abstract in English

Twenty four genotypes were tested for grain yield in four diverse locations over two seasons i.e. 2005-06 and 2006-07. The genetic material contained 19 promising lines and five checks representing the local and improved cultivars for Zoon B (250-350 mm/year) in Syria. The results showed the significant role of the genotype by environment interaction of crossover type in the performance of the genotypes studied and their ranking across test environments. The largest portion of the variance due to GE interaction was attributed to genotype by season GS and Genotype by location by season GLS interactions which revealed the importance of selection for yield stability in addition to average yield across environments.

References used

Annicchiarico, P. (1997). Joint regression vs AMMI analysis of genotypeenvironment interactions for cereals in Italy. Euphytica 94: 53-62
Annicchiarico, P. (2002). Genotype × environments interactions – challenges and opportunities for plant breeding and cultivar recommendation. FAO Plant Production and Protection Paper No. 174. Food and Agriculture Organization, Rome
Baker, R. J. (1988). Tests for crossover genotype-environmental interactions. Can. J. Plant Sci. 68: 405-410

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