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Scientific Object Identifier: http://s-o-i.org/1.1/TAS-02-106-22
DOI: https://dx.doi.org/10.15863/TAS.2022.02.106.22
Language: English
Citation: Djabbarov, I. Sh., & Ruziev, F. A. (2022). Estimation of grain quality of inspecies hybrids of spring soft wheat at early stages of breeding. ISJ Theoretical & Applied Science, 02 (106), 187-192. Soi: http://s-o-i.org/1.1/TAS-02-106-22 Doi: https://dx.doi.org/10.15863/TAS.2022.02.106.22 |
Pages: 187-192
Published: 28.02.2022
Abstract: Currently, the search for a way to improve the technological quality of wheat grain is considered the most important task of genetics and breeding of this important food crop. In the conditions of the Pastdargom district of the Samarkand region (h = 644 m above sea level, 39039! N and 66040! E) in 2017-2020, the grain quality of spring soft wheat hybrids (Khupar x Kayraktosh, Bardosh x Ok marvarid) of the first and second generations obtained in the topcross scheme of crosses was evaluated. The Kroshka variety was used as a standard. Analyzing the data obtained, it can be noted that in the first generation of hybrids (F1) there is a fairly high frequency of heterosis based on the protein content in grain and gluten in flour. It is shown that in the studied hybrid combinations, heterosis in protein and gluten content was determined not by the belonging of the parent forms to certain ecological and geographical zones, but was determined by their genotypic features. It was revealed that in the splitting generations of spring wheat hybrids, combinations with positive dominance and intermediate inheritance of protein and gluten content and its quality, as well as sedimentation, are most important. The highest heritability index was found in the sign of "sedimentation". This trait, to a lesser extent than other signs, is subjected to genotype-environment interaction, which is one of the most reliable marker signs in wheat breeding for an increase in protein content, gluten and flour strength.
Key words: Wheat,Selection, Gluten, Protein, Sedimentation, Intraspecific hybrids.
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