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Iranian Journal of Genetics and Plant Breeding
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Abbasi, S., Baghizadeh, A., Mohammadinejad, G. (2013). Genetic analysis of traits related to grain yield in wheat under drought stress condition by generation mean analysis. Iranian Journal of Genetics and Plant Breeding, 2(1), 42-46.
Shahrbanoo Abbasi; Amin Baghizadeh; Ghasem Mohammadinejad. "Genetic analysis of traits related to grain yield in wheat under drought stress condition by generation mean analysis". Iranian Journal of Genetics and Plant Breeding, 2, 1, 2013, 42-46.
Abbasi, S., Baghizadeh, A., Mohammadinejad, G. (2013). 'Genetic analysis of traits related to grain yield in wheat under drought stress condition by generation mean analysis', Iranian Journal of Genetics and Plant Breeding, 2(1), pp. 42-46.
Abbasi, S., Baghizadeh, A., Mohammadinejad, G. Genetic analysis of traits related to grain yield in wheat under drought stress condition by generation mean analysis. Iranian Journal of Genetics and Plant Breeding, 2013; 2(1): 42-46.

Genetic analysis of traits related to grain yield in wheat under drought stress condition by generation mean analysis

Article 6, Volume 2, Issue 1, Winter and Spring 2013, Page 42-46  XML PDF (283 K)
Document Type: علمی- پژوهشی
Authors
Shahrbanoo Abbasi; Amin Baghizadeh* ; Ghasem Mohammadinejad
.
Abstract
In order to study the inheritance of some traits related to grain yield in drought stress conditions in bread wheat (Triticum aestivum L.), F2, F3 and F4 generations derived from a Kharchia (tolerant) × Gaspard (susceptible) cross and their parents were used separately in a complete randomized block design with two replications. Stem length, biological yield, main spike straw weight, total spike straw weight, grain yield as well as harvest index were measured in different generations. The results of the analysis of variance showed that generations mean squares were significant for all traits. Therefore, the generations mean analysis was performed for all of the traits. The model of four-parameter including m, [d], [h] and [i] was significantly fitted for the majority of the traits. Although both types of additive and dominance effects were involved in the control of the studied traits but dominant component was more effective than the additive one. Dominance effects and additive × additive epistasis were more important than additive effects and other epistasis components for most traits. Regarding the existence of additive and non-additive effects in controlling studied traits, the recurrent selection followed by pedigree breeding can prove useful in improving drought tolerance in bread wheat.
Keywords
Bread wheat; Gene action; Generation mean analysis; Quantitative traits
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