alexa Abstract | GENETIC ANALYSIS IN SOME BARLEY VARIETIES AND THEIR HYBRIDS IN F2 GENERATION


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Research Article Open Access

Abstract

Five two-rowed barely varieties were sown in full Diallel cross including reciprocals at Sulaimani – Qlyasan research station to produce 20 crosses. During the winter season of (2013-2014), 25 genotypes (20 F2 crosses + 5 parents) were sown in a completely randomize block design CRBD with 3 replications. The most important results can be summarized as follow: -The mean squares due to genotypes, gca , sca and rca , were highly significant for most characters. -Parent 3 possess the highest value for most studied characters, while parent 1 recorded minimum values. The reciprocal cross 4x1 recorded the highest value for (grain weight / plant, biological weight / plant and weight of spikes / plant). -The reciprocal cross 5x1 gave maximum positive Heterosis for (grain weight / plant) and most of its components. -The average degree of dominance value was more than one for all characters due to Diallel crosses and for most characters due to reciprocal crosses, confirming the importance of non- additive gene effect in controlling the inheritance of these characters.

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Author(s): Sherwan Esmail Tofiq, *Taban Najmalddin Hama Amin, Suaad Muhammad Sheikh Abdulla, Dana Azad Abdulkhaleq

Keywords

Genetic, barley, Hybrids, F2 Generation, Plant Breeding and Genetics

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