Nataša LJUBIČIĆ, Sofija PETROVIĆ, Miodrag DIMITRIJEVIĆ, Nikola HRISTOV, Mirjana VUKOSAVLJEV, Zorana SREĆKOV

Diallel Analysis for Spike Length in Winter Wheat

Anahtar Kelimeler:

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Diallel Analysis for Spike Length in Winter Wheat

The mode of inheritance and gene effect for spike length of 5x5 full diallel crosses of wheat varieties was estimated in F1 generation. The results indicated significant differences among the parents for general combining ability (GCA) and crosses for specific combining ability (SCA) for spike length. However, highly significant differences for the general (GCA) and specific (SCA) combining ability in the F1 generation denoted that spike length had resulted from the genes with additive and non-additive, i.e. dominant impact. The absence of interallelic interaction between the genes determining the expression of spike length was concluded from the regression analysis. The regression line intercepts the Wr axis below the origin in F1 indicating overdominance over an average of all arrays

Keywords:

Winter wheat, spike length, diallel, gene effects, combining ability regression analysis,

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