Assessment on Trichoderma spp. mixture as a potential biocontrol agent of Ganoderma boninense infected oil palm seedlings

Habu M., . and Khairulmazmi A., . and Nusaibah S. A., . Assessment on Trichoderma spp. mixture as a potential biocontrol agent of Ganoderma boninense infected oil palm seedlings. pp. 403-415. ISSN 1511-2780

Diseases caused by Ganoderma spp. have been causing serious oil palm yield losses and affecting its contribution to the producers economy. Research on sustainable and eco-friendly remedy to counter the disease is on the upsurge. Trichoderma spp. have been the most studied and valued microbes as biological control agents (BCA) in an effort to combat a wide range of plant diseases. Therefore in this current study the potential of Trichoderma spp. ( Trichoderma asperellum Trichoderma harzianum and Trichoderma virens) as a mixture was evaluated as a BCA against basal stem rot disease of oil palm. The mixture of Trichoderma spp. demonstrated a disease reduction of 83.03 and 89.16 from the foliar and bole symptoms respectively. The highest peroxidase (PO) level was detected in T1 (167.9 U g-1 tissue) at four months after post inoculation (mpi) and the lowest in T5 (72.3 U g-1 tissue) at 1 mpi. Treatment 4 with all the three Trichoderma spp. displayed the maximum level of polyphenol oxidase (PPO) among all the treatments conducted. Similarly T4 recorded the highest accumulation of total phenolic content (TPC) (49.6 mg g-1) in the seedling roots at harvest. Disease infestation was slower in Trichoderma treated seedlings regardless of a single or mixture application compared to the positive control.

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Abstract

Diseases caused by Ganoderma spp. have been causing serious oil palm yield losses and affecting its contribution to the producers economy. Research on sustainable and eco-friendly remedy to counter the disease is on the upsurge. Trichoderma spp. have been the most studied and valued microbes as biological control agents (BCA) in an effort to combat a wide range of plant diseases. Therefore in this current study the potential of Trichoderma spp. ( Trichoderma asperellum Trichoderma harzianum and Trichoderma virens) as a mixture was evaluated as a BCA against basal stem rot disease of oil palm. The mixture of Trichoderma spp. demonstrated a disease reduction of 83.03 and 89.16 from the foliar and bole symptoms respectively. The highest peroxidase (PO) level was detected in T1 (167.9 U g-1 tissue) at four months after post inoculation (mpi) and the lowest in T5 (72.3 U g-1 tissue) at 1 mpi. Treatment 4 with all the three Trichoderma spp. displayed the maximum level of polyphenol oxidase (PPO) among all the treatments conducted. Similarly T4 recorded the highest accumulation of total phenolic content (TPC) (49.6 mg g-1) in the seedling roots at harvest. Disease infestation was slower in Trichoderma treated seedlings regardless of a single or mixture application compared to the positive control.

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Item Type:	Article
AGROVOC Term:	Oil palm
AGROVOC Term:	Seedlings
AGROVOC Term:	Trichoderma
AGROVOC Term:	Stems
AGROVOC Term:	Ganoderma
AGROVOC Term:	Microbes
AGROVOC Term:	Trichoderma harzianum
AGROVOC Term:	Peroxidases
AGROVOC Term:	Polyphenol oxidase
AGROVOC Term:	Phenolic content
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:29
URI:	http://webagris.upm.edu.my/id/eprint/24709

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