Interaction between Ganoderma and leguminous cover crop - pathogenicity and field observation in oil palm plantation

Idris A.S. and Ariffin D. and Ismail S. (2003) Interaction between Ganoderma and leguminous cover crop - pathogenicity and field observation in oil palm plantation. [Proceedings Paper]

Seven species of legumes were artificially inoculated with G. boninense in the nursery. The legumes tested were Calopogonium caeruleum, Calopogonium mucunoides, Centrosema pubescens, Desmodium ovalifolium, Mucuna bracteata, Mucuna cochinchinensis and Pueraria phaseoloides. Fifteen months after inoculation, all legumes were found infected with G. boninense. There was no significant different on formation of white mycelium and basidiomata on legumes, and also the percentage of legumes infected with G. boninense. However, the mortality between legumes was significantly different where Calopogonium mucunoides had the highest rate and Mucuna brateata had the lowest rate. This indicated that Mucuna brateata was highly tolerant to G. boninense infection. Formation of the nodule on roots of inoculated and uninoculated legume was also recorded. There was highly significant difference between inoculated and uninoculated legumes, where inoculated legumes had the lowest value (ranged 31.7 to 41.7%) and uninoculated legumes had the highest value (ranged 81.7 to 95.0%). Field survey was carried out to detect the presence of Ganoderma on legume planted in immature oil palm at four sites: Smallholder Batu Pahat, Johar; Tambang Estate, Batu Anam, Segamat, Johar; Regent Estate, Gemencheh, Negeri Sembilan; and Teluk Merbau Estate, Sepang, Selangor. White mycelium and basidiomata of Ganoderma were detected on roots or stem base of legumes in all field surveyed. The percentage of legumes with Ganoderma varied between 0 to 18.7% depending on the incidence of basal stem rot (BSR) in ex-oil palm planting. The presence of Ganoderma on legumes was confirmed by plating roots or stem base of legumes on Ganoderma selective medium (GSM). These Ganoderma were identified as G. boninense and G. zonatum and both species were proved pathogenic to oil palm. Study suggests that legumes act as an alternative host for Ganoderma to survive in the fields. The presence of Ganoderma on legumes will increase the inoculum foci, which may later influence the development of the disease, but this needs to be investigated further.

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Abstract

Seven species of legumes were artificially inoculated with G. boninense in the nursery. The legumes tested were Calopogonium caeruleum, Calopogonium mucunoides, Centrosema pubescens, Desmodium ovalifolium, Mucuna bracteata, Mucuna cochinchinensis and Pueraria phaseoloides. Fifteen months after inoculation, all legumes were found infected with G. boninense. There was no significant different on formation of white mycelium and basidiomata on legumes, and also the percentage of legumes infected with G. boninense. However, the mortality between legumes was significantly different where Calopogonium mucunoides had the highest rate and Mucuna brateata had the lowest rate. This indicated that Mucuna brateata was highly tolerant to G. boninense infection. Formation of the nodule on roots of inoculated and uninoculated legume was also recorded. There was highly significant difference between inoculated and uninoculated legumes, where inoculated legumes had the lowest value (ranged 31.7 to 41.7%) and uninoculated legumes had the highest value (ranged 81.7 to 95.0%). Field survey was carried out to detect the presence of Ganoderma on legume planted in immature oil palm at four sites: Smallholder Batu Pahat, Johar; Tambang Estate, Batu Anam, Segamat, Johar; Regent Estate, Gemencheh, Negeri Sembilan; and Teluk Merbau Estate, Sepang, Selangor. White mycelium and basidiomata of Ganoderma were detected on roots or stem base of legumes in all field surveyed. The percentage of legumes with Ganoderma varied between 0 to 18.7% depending on the incidence of basal stem rot (BSR) in ex-oil palm planting. The presence of Ganoderma on legumes was confirmed by plating roots or stem base of legumes on Ganoderma selective medium (GSM). These Ganoderma were identified as G. boninense and G. zonatum and both species were proved pathogenic to oil palm. Study suggests that legumes act as an alternative host for Ganoderma to survive in the fields. The presence of Ganoderma on legumes will increase the inoculum foci, which may later influence the development of the disease, but this needs to be investigated further.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. TP684 P3I61 2003 Call Number
AGROVOC Term:	Ganoderma
AGROVOC Term:	oil palm > oil palm Prefer using Elaeis guineensisElaeis guineensis
AGROVOC Term:	pathogenicity
AGROVOC Term:	observation
AGROVOC Term:	crop management
AGROVOC Term:	monitoring
AGROVOC Term:	plant pathologists
AGROVOC Term:	crop protection > crop protection Prefer using plant protectionplant protection
Geographical Term:	Malaysia
Depositing User:	Nor Hasnita Abdul Samat
Date Deposited:	04 Aug 2024 09:20
Last Modified:	04 Aug 2024 09:20
URI:	http://webagris.upm.edu.my/id/eprint/882

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