Collaborative project: Analysis and integration of effective powdery mildew resistances in Triticale - Subproject 2
Description:
Increasing triticale acreages stimulated the adaptation of powdery mildew populations to the race-specific resistances of most recommended varieties. Our findings indicate that powdery mildew of triticale most probably developed from wheat mildew. The triticale mildew population in Germany is highly diverse as shown by an analysis of 694 isolates from the main growing areas. In seedling tests with these isolates only 'Grenado' was completely resistant among the currently registered triticale varieties. A screening of 826 preselected triticale breeding strains showed that 16 strains has been completely resistant to six highly virulent isolates. The same material remained also highly resistant after mildew inoculations in three years of field testing indicating a combination of effective seedling and adult-plant resistance. The effects of known resistance genes from wheat could not be predicted when incorporated in primary triticale. Obviously, the rye genome had a high impact on the resistance level of triticale. Indeed, a resistance gene from the triticale strain JKI.5015 could already been localized on rye chromosome 6RL by SSR markers. The high diversity of powdery mildew populations is a clue that newly detected race-specific resistances might be effective only for shorter periods. On the long run, breeders should combine them with effective adult-plant resistances to select for triticale varieties with durable resistance.
More projects
Collaborative project: Analysis and integration of effective powdery mildew resistances in Triticale - Subproject 3 Details of Collaborative project: Analysis and integration of effective powdery mildew resistances in Triticale - Subproject 3
Executive Institute:
Institute for Plant Protection in Field Crops and Grassland (JKI-A) Details of Institute for Plant Protection in Field Crops and Grassland
Parent institution:
Federal Research Centre for Cultivated Plants – Julius Kühn-Institut (JKI) Details of (JKI) (Saxony-Anhalt)
Contract period:
01. 05. 2007 - 14. 05. 2010
Project budget:
243,437 €
Participating Institutions:
- Association to promote the private German plant breeding eV (GFP) Details of GFP
Funding Programme:
- BMELV - Program to promote innovation Details of BMELV - Program to promote innovation
Subject:
- Plant Breeding
- Crop Protection
Purpose of research:
Promotion of innovation
Funding Institutions:
- Federal Ministry of Food, Agriculture and Consumer Protection (BMELV) Details of (BMELV)
Project Management Agency:
- Federal Office for Agriculture and Food (BLE) Details of BLE