Effects of Nitrogen, Plant Density, Moisture Stress and Artificial Inoculation with Macrophomina phaseolina on Charcoal Rot Incidence in Grain Sorghum |
| |
| Authors: | S Pande L K Mughogho N Seetharama R I Karunakar |
| |
| Institution: | Institute of Plant Pathology, Research Centre of Plant Protection, Lottenborgvej 2, DK-2800 Lyngby (Denmark). |
| |
| Abstract: | The occurrence of pythiaceous fungi in pot plant cultures grown in ebb and flow bench systems was investigated monthly from May to December, Phytophthora, Pythium and Saprolegnia (in all 351) were isolated from water samples and identified. Nearly all the isolates of Pythium produced zoospores in water. A pathogenicity test involving 15 isolates of Pythium“group P”, and 7 of Pythium“group F” showed that 73 % were pathogenic on cucumber, 66 % on Gerbera, 59 % on lettuce, 50 % on tomato, and 32 % on cress. Control of Pythium and Phytophthora is important in order to improve the health of plants grown in ebb and flow systems. |
| |
| Keywords: | |
|
|
