Abstract
The aim of this study was to evaluate the following parameters for the ear height of silage maize: variability of inbred lines and their diallel hybrids, superior-parent heterosis, components of genetic variability, heritability and combining ability on the basis of a diallel set. The two-year four-replicate trail was set up according to the randomized block design in the location of Zemun Polje. The analysis of components of genetic variance for ear height indicates that the additive components (D) were lower than dominant components (H1 and H2) of genetic variance, while the frequency of dominant (u) and recessive genes (v) for this observed trait shows that dominant genes prevailed. The results of the Vr/Wr regression analysis point out to superdominance of ear height inheritance. The analysis of variance of combining abilities shows that there were highly significantly positive values of GCA and SCA for ear height in both years of investigation. Non-additive gene effects played an important role in inheritance of this trait, which was illustrated by the GCS to SCA ratio lt 1.
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Claims 6
Claim · model-written summary
Additive genetic variance for ear height was lower than dominance variance.
Verbatim
e1“for the ear height of silage maize”
e2“the additive components (D) were lower than dominant components (H1 and H2) of genetic variance”
Claim · model-written summary
Dominant genes prevailed over recessive genes for ear height.
Verbatim
e1“for the ear height of silage maize”
e2“the frequency of dominant (u) and recessive genes (v) for this observed trait shows that dominant genes prevailed”
Claim · model-written summary
Ear height inheritance shows superdominance, according to the Vr/Wr regression analysis.
Verbatim
e1“for the ear height of silage maize”
e2“The results of the Vr/Wr regression analysis point out to superdominance of ear height inheritance”
Claim · model-written summary
GCA and SCA for ear height were significantly positive in both years.
Verbatim
e1“for the ear height of silage maize”
e2“there were highly significantly positive values of GCA and SCA for ear height in both years of investigation”
Claim · model-written summary
Non-additive gene effects explain the inheritance of ear height, according to the authors.
Verbatim
e1“for the ear height of silage maize”
e2“Non-additive gene effects played an important role in inheritance of this trait, which was illustrated by the GCS to SCA ratio lt 1”
Claim · model-written summary
The GCS to SCA ratio for ear height was below 1.
Verbatim
e1“for the ear height of silage maize”
e2“Non-additive gene effects played an important role in inheritance of this trait, which was illustrated by the GCS to SCA ratio lt 1”