Diallel analysis to study the genetic makeup of spike and yield contributing traits in wheat (Triticum aestivum L.)

Nazeer, Wajad; Farooq, Jehanzeb; Tauseef, Muhammad; Ahmed, Saghir; Khan, Mueen Alam; Mahmood, Khalid; Hussain, Altaf; Iqbal, Muhammad Ahsan; Nasrullah, Hafiz Muhammad

doi:10.5897/ajb11.967

Cited by 9 publications

(1 citation statement)

References 15 publications

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“…The ratio of GCA and SCA variances indicates a predominance of non-additive gene effects over additive ones in all cases except F 1 -2015, where additives predominated. The same results, for the predominance of non-additive genetic effects, have been reported by a number of other authors (Perenzin et al, 1992;Singh et al, 2004;Joshi et al, 2004;Nazeer et al, 2011;Kumar, Khodadadi et al, 2012;Ahmad et al, 2017;Patel et al, 2018). On the other hand, the predominance of additive genetic effects in inheritance has been reported by other researchers (El-Habbad et al, 1996;Bnejdi & El-Gazzah, 2010;Sadeghi et al, 2012;Tiwari et al, 2015;Al-Naggar et al, 2015).…”

Section: Resultssupporting

confidence: 82%

Gene action for grain protein content in durum wheat

Dragov

2021

AAS

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The aim of this study was to determine the gene action and combining ability of durum wheat for grain protein content. During the three year period a diallel cross was carried out with five modern parents of durum wheat – ‘Victoria’, ‘Deni’, ‘Superdur’, ‘Progres’ and ‘Predel’. Ten hybrid combinations and the parents were grown in the experimental field of the Field Crops Institute, Chirpan. The experiment was performed by the randomize block method design in three replications. It was found that in the inheritance of grain protein content dominance and overdominance in positive and negative directions were observed. Statistical processing of the results showed that both additive and non-additive genetic effects have influenced on inheritance. Non-additive gene effects (SCA) had a greater role in inheritance. This suggests that an effective selection for this trait could begin in later generations. The combining ability analysis has identified two good general combinators (Predel and Superdur varieties) that could be used as donors to increase the values of the trait protein content in grain. Several crosses showing positive and significant SCA effects have also been identified, suitable for achieving reliable transgressive genotypes.

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