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Inheritance of resistance to Rhynchosporium secalis in spring barley ( Hordeum vulgare L.)
Author(s) -
Cséleny L.,
Ordon F.,
Friedt W.
Publication year - 1998
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1998.tb01442.x
Subject(s) - diallel cross , biology , hordeum vulgare , inheritance (genetic algorithm) , population , cultivar , resistance (ecology) , genetics , gene , agronomy , botany , horticulture , poaceae , demography , hybrid , sociology
The inheritance of durable resistance of selected spring barley varieties to Rhynchosporium secalis was investigated. Data from the F 2 generation of a 4 × 4 diallel, without reciprocals and the F 4 generation of three crosses selected out of this diallel, suggest that resistance in this sample of varieties tested is complex in inheritance. Significant additive effects were detected indicating that the resistance level of barley cultivars may be improved by the hybridisation of suitable varieties. However, the genes conferring resistance seem to be concealed by the expression of one completely dominant resistance gene in our set of varieties. These results are partly in conflict with previous results on the inheritance of resistance to R. secalis in the breeder's line ‘11258/2286 13 A’ indicating that the effectiveness of this resistance gene may be greatly influenced by the genetic background of the current population of R. secalis.