The analysis of quantitative traits for spring barley mutants obtained with use of the Hordeum bulbosum method

Wojciech Rybiński

office@igr.poznan.pl
Instytut Genetyki Roślin Polskiej Akademii Nauk w Poznaniu (Poland)

Abstract

Seed of two barley cultivars: Maresi (two-rowed) and Klimek (six-rowed) was subjected to mutagenic treatment with N-nitroso-N-methylurea (MNU). The M1 plants were crossed with Hordeum bulbosum and after 14 days the unripened embryos were cultured in vitro until DH plants were obtained. Among the plants mutant genotypes were selected, propagated and used in field experiments during three years. The statistical parameters (means, extremes, coefficients of variation) for the yield structure components showed significantly higher variability among the DH mutants as compared to their initial forms. In the group of two-rowed barleys, the highest significance contrasts between Maresi and its mutants were recorded for the semi-dwarf mutants M53 and M50. These forms were additionally more resistant to lodging and their ripening time was similar to the cultivar Maresi. Among the six-rowed forms, the most significant differences with the cultivar Klimek were found for the short-straw mutants M62 and M63.

 

Keywords:

Hordeum bulbosum, laser, DH lines, mutants, N-nitroso-N-methylurea, variability of traits, yield structure

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Published
2003-06-30

Cited by

Rybiński, W. (2003) “The analysis of quantitative traits for spring barley mutants obtained with use of the Hordeum bulbosum method”, Bulletin of Plant Breeding and Acclimatization Institute, (226/227), pp. 259–268. doi: 10.37317/biul-2003-0152.

Authors

Wojciech Rybiński 
office@igr.poznan.pl
Instytut Genetyki Roślin Polskiej Akademii Nauk w Poznaniu Poland

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