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1995 | 36 | 1 | 17-26
Article title

Direct effects of cyclic selection fo longer seminal roots in spring barley (Hordeum vulgare L.)

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EN
Abstracts
EN
Cyclic pedigree selection for longer seminal roots was performed in the F2, F3 and F4 generations of hybrid population of spring barley.The total length of roots was measured in seedlings grown in filter-paper rollers.The intensity of selectio was 20% (C1, C2 cycles) and 26% (C3).Selection wasceffective.On anaverage, the finally selected F5-pedigrees formed 6% longer seminal roots system than the initial F2's and much of them exibited 7-16% improved rooting when compared with the best parent in a sand-vermiculite pot culture.Realized heritability coefficient of the root length ranged from 0.21 to 0.37 when assessed by the ratio of selection response to selection differential, while those estimated by the parent-offspring regressions attained 0.40-0.53.The obtained results suggest that progeny evaluation and/or seletion delayed for later generations should be essential for more effective root selection in barley.
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Year
Volume
36
Issue
1
Pages
17-26
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author
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Document Type
article
Publication order reference
A.G.Gorny
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YADDA identifier
bwmeta1.element.element-from-psjc-14e914fc-823a-3a24-b3c9-18127f96af1c
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