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

• Authors: A.G. Gorny
• Languages of publication: 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.

Keywords

EN

HERITABILITY; HORDEUM VULGARE; ROOT LENGTH; SELECTION; SEMINAL ROOT

Discipline

• GENETICS: GENETICS

• Publisher: Institute of Plant Genetics, Polish Academy of Sciences
• Journal: Journal of Applied Genetics
• Year: 1995
• Volume: 36
• Issue: 1
• Pages: 17-26

Contributors

author

A.G. Gorny

• Document Type: article
• Publication order reference: A.G.Gorny