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Asian Journal of Biological Sciences
Year: 2020  |  Volume: 13  |  Issue: 4  |  Page No.: 309 - 317

Study of Genetic Variability in Some Bread Wheat Accessions (Triticum aestivum L.) in Gurage Zone, Ethiopia

Destaw Mullualem Atinafu, Shiferaw Alemu Alayachew and Kifle Zerga Heterat    

Abstract: Background and Objective: Bread wheat (Triticum aestivum L.) is one of the most important and strategic cereal crop which contributes food supply worldwide and ensures food security. Developing desirable genotypes with high yield potential is the main concern of any breeders. So, the main objective of this study was performance evaluation of some bread wheat accessions at Gurage zone, Ethiopia to evaluate its genetic variability. Materials and Methods: A field experiment was conducted to study the genetic variability and association of characters among yield and yield-related traits in bread wheat accessions at Fereziye and Kotergedira during the main season of 2018. The experiment was conducted by using augmented design with 6 blocks and a total of 60 accessions and 4 checks were evaluated. Results: Analysis of variance revealed that there was highly significant difference among the samples for most of the characters studied. High heritability was estimated for tillers/plant, plant height, above ground biomass, spike length, days to heading and spikelet per spike at Fereziye and characters that showed high heritability at Kotergedira were also tillers/plant, plant height, above ground biomass, days to heading, spikes per plant and spikelet per spike. Conclusion: This indicated that these characters could be improved through selection relatively with simple way. For all traits, phenotypic coefficient of variation was highly higher than genotypic coefficient of variation this indicating that there was environmental influence on these traits.

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