Citation
Kapoor S., . and Harsh N. S. K., . and Sharma S. K., . A new wilt disease of Acacia nilotica caused by Fusarium oxysporum. pp. 453-462. ISSN 0128-1283
Abstract
This paper reports a new vasnJlar wilt disease of Acacia nilotica seedlings caused by Fusarium oxy.sporum. The affected seedlings exhibited varied symptoms such as drooping of leaves at the tip or side twigs top dying mortality and in some cases recovery in the form of new shoots. Browning of vascular tissue and clogging of xylem vessels by mycelium and spores of fungus as well as gums were associated with diseased plants. The disease caused more mortality in seedlings raised in polythene bags (33.7) than those in root trainers (\6.9). The source of infection was found to be soil borne and not seed borne. The pathogenicity ofF·oxysporum was confirmed in the laboratory by artificial inoculation. Of the seven fungicides tested. Bavistin and Benlate inhibited pathogen growth completely in culture at 0.1 concentration. Soil drenching with Thiram (0.05) followed by seed dressing with Bavistin (0.05) gave the best growth performance of seedlings as well as inhibition of disease in root trainers.
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Abstract
This paper reports a new vasnJlar wilt disease of Acacia nilotica seedlings caused by Fusarium oxy.sporum. The affected seedlings exhibited varied symptoms such as drooping of leaves at the tip or side twigs top dying mortality and in some cases recovery in the form of new shoots. Browning of vascular tissue and clogging of xylem vessels by mycelium and spores of fungus as well as gums were associated with diseased plants. The disease caused more mortality in seedlings raised in polythene bags (33.7) than those in root trainers (\6.9). The source of infection was found to be soil borne and not seed borne. The pathogenicity ofF·oxysporum was confirmed in the laboratory by artificial inoculation. Of the seven fungicides tested. Bavistin and Benlate inhibited pathogen growth completely in culture at 0.1 concentration. Soil drenching with Thiram (0.05) followed by seed dressing with Bavistin (0.05) gave the best growth performance of seedlings as well as inhibition of disease in root trainers.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Acacia nilotica |
| AGROVOC Term: | Wilts |
| AGROVOC Term: | Plant diseases |
| AGROVOC Term: | Vascular diseases |
| AGROVOC Term: | Vascular wilt |
| AGROVOC Term: | Twigs |
| AGROVOC Term: | Browning |
| AGROVOC Term: | Vascular tissues |
| AGROVOC Term: | Fusarium oxysporum |
| AGROVOC Term: | Xylem |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 06:27 |
| URI: | http://webagris.upm.edu.my/id/eprint/22233 |
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