Pedigree selection for earliness, spikes number and grain weight in two segregating populations of barley (Hordium vulgare l.) [electronic resource].

Includes reference.

Two cycles of pedigree selection were applied to the F₃ generation of two barley crosses. The objective of this investigation was to improve grain weight. spikes number/plant and days to heading using the pedigree selection. Highly significant differences among the F₃ families and sufficient genotypic coefficient of variability were detected for days to heading, spike length. number of spikes/plant, number of kernels/spike. 1000- kemel weight and grain weight/plant in both populations. Broad sense heritabilities were high for days to heading and moderate for number of spikes/plant and grain weight of both populations. Heritability and predicted genetic gain upon selection decreased from F₃ to F₅ generation for the three selection criteria of both populations. The realized gains showed that days to heading was earlier by 4.16% in the first population and 2.76 % in the second one after two cycles compared to the bulk sample.

Summary in Arabic.

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