Evaluation of advanced bread spring wheat lines for field and seedling resistance to foliar pathogens
Foliar diseases (rusts and blotches) significantly limit the yield of spring wheat in the Southern Urals. The aim of the research was a comprehensive assessment of 17 promising lines of bread spring wheat, created at the Chelyabinsk Research Institute of Agriculture, for disease resistance and their...
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Published in | BIO Web of Conferences Vol. 23; p. 1005 |
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Main Authors | , , , , |
Format | Journal Article Conference Proceeding |
Language | English |
Published |
Les Ulis
EDP Sciences
2020
|
Subjects | |
Online Access | Get full text |
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Summary: | Foliar diseases (rusts and blotches) significantly limit the yield of spring wheat in the Southern Urals. The aim of the research was a comprehensive assessment of 17 promising lines of bread spring wheat, created at the Chelyabinsk Research Institute of Agriculture, for disease resistance and their identification of
Lr
genes. Resistance to leaf and stem rusts,
Paraganospora nodorum
leaf blotch and tan spot was studied in the field and laboratory conditions. All studied lines were characterized by high level of resistance to leaf and stem rusts in the seedling and adult plant stages. A wide representation of the
LrSp
gene (individually or in combination with noneffective genes
Lr1, Lr3, Lr10, Lr9
), and genes
Lr24/Sr24, Lr19/Sr25
and effective combinations of seedling (
Lr9
+
Lr26/Sr31
) and adult plant (
Lr34/Sr57
and
Lr21
) resistance genes was revealed using molecular markers. Multiple resistance to rust and blotches (
Paraganospora nodorum
leaf blotch and tan spot) was detected in the Ferr. 26768 line. Molecular analysis showed the presence of adult plant resistance genes
Lr34/Sr57
+
Lr21
in combination with
Lr10
gene. Along with diseases resistance, Ferr. 26768 line is promising in terms of a set of economically valuable attributes (lodging resistance, grain quality, yield). |
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ISSN: | 2117-4458 2273-1709 2117-4458 |
DOI: | 10.1051/bioconf/20202301005 |