Evaluating fusarium graminearum resistance in bread wheats, synthetic wheats and their derivatives
The number of sources of resistance to head blight caused by Fusarium graminearum Schw, is limited in wheat (Triticum aestivum L.). Most resistance sources come from China, Brazil, and Japan. However, they are for the most part tall, late-maturing wheat landraces that are low yielding, highly susceptible to leaf, stem, and stripe rusts, and in general have undesirable agronomic traits. Through a collaborative China/CIMMYT project, high yield potential and resistance to the thre9 rusts were incorporated into advanced wheat lines while maintaining their level of head blight resistance. Although effective in certain situations, this resistance needs to be improved. Moreover, it is necessary to broaden the genetic base of fusarium resistance by finding other sources of resistance. The CIMMYT Wheat Program has therefore been looking for other sources of effective head blight resistance. The wheat wide crosses unit nas been working to introgress resistance from wild grass species into wheat through the use of "synthetic" wheats (developed by crossing durum wheat with a wild relative) and their derivatives. As part of that effort, a study was conducted to evaluate the fusarium resistance of the best head blight resistant wheat lines and their different combinations with synthetics and synthetic derivatives.
| Main Authors: | , , , |
|---|---|
| Format: | Report biblioteca |
| Language: | English |
| Published: |
CIMMYT
1998
|
| Subjects: | AGRICULTURAL SCIENCES AND BIOTECHNOLOGY, BREEDING METHODS, DISEASE RESISTANCE, PLANT DISEASES, TRITICUM AESTIVUM, YIELDS, |
| Online Access: | http://hdl.handle.net/10883/3947 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|