Induction of systemic protection against rust infection in broad bean by saccharin: effects on plant growth and development |
| |
Authors: | Boyle Celia Walters Dale |
| |
Institution: | Crop and Soil Research Group, Scottish Agricultural College, King's Buildings, West Mains Road, Edinburgh, EH9 3JG, UK. |
| |
Abstract: | Here, we examine the effect of saccharin on the induction of systemic resistance in broad bean (Vicia faba) to the rust fungus Uromyces viciae-fabae. Saccharin was applied to beans at the three-leaf stage, either as a soil drench or by painting the solution on to first leaves. Plants were then challenge inoculated with the rust 1, 6, 10 and 14 d following saccharin treatment, after which they were harvested, assessed for the intensity of rust infection and plant growth measurements conducted. Foliar application of saccharin did not induce systemic protection to rust infection until 14 d after application and was less effective than saccharin applied as a soil drench. When saccharin was applied as a drench, systemic protection was not observed until 6 d after application, but was still apparent in plants 14 d after application of the drench. Irrespective of the method of application, saccharin had no significant effect on fresh and dry weights or leaf area of the plants. Saccharin applied as a drench did, however, reduce the number of leaflets produced. |
| |
Keywords: | broad bean (Vicia faba) growth induced resistance rust (Uromyces viciae-fabae) saccharin |
本文献已被 PubMed 等数据库收录! |
|