Modified Half‐Sib and Phenotypic Recurrent Selection for Resistance to Powdery Mildew in Winter Wheat

Autor: Mark E. Sorrells, Gary C. Bergstrom, A. H. Abdalla, W. R. Coffman
Rok vydání: 1989
Předmět:
Zdroj: Crop Science. 29:1351-1357
ISSN: 1435-0653
0011-183X
DOI: 10.2135/cropsci1989.0011183x002900060004x
Popis: Beginning 7 d after inoculation, area under the disease progress curve (AUDPC) was determined four times at 4-d intervals and used to select individuals for the next cycle. For both populations, selection for low AUDPC resulted in significantly decreased final disease severity ratings, colony number, and cumulative sporulation capacity. Duration of the incubation period was significantly increased only with two cycles of half-sib selection for AUDPC. A high correlation between AUDPC and the final disease severity rating indicated that the breeder could select for nonspecific resistance using a final disease severity rating provided the test materials are all inoculated simultaneously
Databáze: OpenAIRE