**8. References**


8. There is a lack of breeding indices for parallel selection for quality and yield potential

As a result of a nearly half a century breeding in Dobrudzha Agricultural Institute 26 varieties from the first quality group are created. This is nearly one third of the entire variety list. The massive usage of variety Bezostaya 1 in the breeding programs direct or indirect narrowed the genetic diversity of the materials and to some extent unified their glutenin and gliadin spectra. The efforts to include foreign initial materials in hybridization, with alleles with good influence over the wheat quality, will probably be rewarded in the near

A breeding progress is determined for almost all the indices, defining end-use quality in wheat. The group of high quality wheat varieties has greater progress compared to all

Different factors influence on the wheat quality and on the expression of different indices. The knowledge of the nature and direction of the effect of these factors is valuable for predicting to some extend the performance of wheat varieties in certain growing conditions. Most of the Bulgarian varieties show moderate stability at different environments. But the results for the individual varieties and their indices are not unidirectional and therefore when selecting a variety for mass production it is necessary to consider the purpose for its cultivation, the potential of the given variety and its ability to realize this potential with

The authors give their acknowledgments to all colleagues from the different laboratories for

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6. Complex genetics suggests a special selection procedure (Tsenov & Stoeva, 1998). 7. The selection in the early hybrid populations is not effective because of fading forming

5. Samples with high combining ability for quality are limited.

process and restricted amount of grain for analysis.

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and other parameters.

varieties irrespective of the indices.

stability and adequacy.

**7. Acknowledgment** 

**8. References** 

**6. Conclusions** 

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