Possible Involvement of Biological Agents in Coconut Root (Wilt) Disease
| dc.contributor.author | Radha, K. | |
| dc.date.accessioned | 2014-07-16T09:34:47Z | |
| dc.date.available | 2014-07-16T09:34:47Z | |
| dc.date.issued | 2007-02 | |
| dc.description.abstract | Coconut root (wilt) disease is a complex malady. The disease is non-lethal but debilitating in nature. It occurs under varying ecological and soil conditions. Spread of the disease, slow and erratic, is favoured by light soils and high water table. The disease syndrome consisting of rotting of roots, ribbing and marginal necrosis of leaflets and chlorosis of leaves is manifested in different combinations and intensities. Root rot precedes foliar symptoms. Damage to the vascular tissues in the absorbing region of externally healthy roots of apparently healthy palms in the disease affected area also occurs. A sap transmissible virus was suspected to be involved in the disease. Rhizoctonia solani, R. bataticola, Fusarium equiseti, Cylindrocarpon effusum, Enterobacter sp. and Rado-pholus similis have been found associated with the affected roots. A critical assessment of the involvement of these soil borne pathogens in initiating the symptoms of the disease at the root level is attempted. The delay in symptom expression culminating in debilitation of the palm consequent on infection(s) is attributed to the massive root zone of the palm conditioned by soil environment. | en_US |
| dc.identifier.citation | In: Proceedings, PLACROSYM II, UPASI, Ootacamund, 26-29 Jun. 1979. Edited by C. S. Venkataram and others 1980 p-316-324 | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/4170 | |
| dc.language.iso | en | en_US |
| dc.title | Possible Involvement of Biological Agents in Coconut Root (Wilt) Disease | en_US |
| dc.type | Article | en_US |