Durability of resistance to rust in sunflower: Implications for resistance breeding
Sunflower rust is caused by Puccinia helianthi Schw. and is an important disease in Argentina, Australia, Canada, Egypt, Israel, Turkey, USA and the former USSR. Sunflower rust is a macrocyclic, heterothallic and autoecious fungus, surviving mainly in plant debris in soil in the form of teliospores....
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Institute of field and vegetable crops, Novi Sad
2010-01-01
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| Series: | Ratarstvo i Povrtarstvo |
| Subjects: | |
| Online Access: | http://scindeks-clanci.ceon.rs/data/pdf/1821-3944/2010/1821-39441002435L.pdf |
| Summary: | Sunflower rust is caused by Puccinia helianthi Schw. and is an important disease in Argentina, Australia, Canada, Egypt, Israel, Turkey, USA and the former USSR. Sunflower rust is a macrocyclic, heterothallic and autoecious fungus, surviving mainly in plant debris in soil in the form of teliospores. New races of P. helianthi are continuously evolving and overcoming resistance genes, resulting in a continuous threat for the crop. The deployment of hybrids with simple resistances has exacerbated this problem. Combination of the appropriate R-genes could result in a resistance more difficult to overcome. The identification and characterization of new durable sources of sunflower rust resistance is a high priority for both researchers and industry. There is a possibility of breeding for high coumarin content to improve resistance at early stages of fungal development. |
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| ISSN: | 1821-3944 2217-8392 |