Effect of trimming and mycorrhizal inoculation on the growth of Hopea odorata rooted cuttings

Lee S. S., . and Patahayah M., . (2006) Effect of trimming and mycorrhizal inoculation on the growth of Hopea odorata rooted cuttings. In: 8th Round-Table Conference on Dipterocarps: Dipterocarps - Enhancing Capacities in Sustainable Development and Poverty Alleviation, 15-17 Nov 2005, Ho Chi Minh City (Vietnam).

A nursery trial was set up at the Forest Research Institute Malaysia (FRIM) to determine the effect of trimming and ectomycorrhizal (ECM) inoculation on the growth of Hopea odorata rooted cuttings. This study consisted of four treatments T1 – ectomycorrhizal inoculation T2 - trimming T3 - ectomycorrhizal inoculation + trimming and T4 - untreated control (without ectomycorrhizal inoculation and without trimming). Hopea odorata cuttings were inoculated with an indigenous ectomycorrhizal inoculum Tomentella sp. in peat: vermiculite. Cuttings were inoculated one week after transplanting into polybags containing a standard potting mix. Trimming was carried out at two-week intervals when the plants showed signs of producing a second leader. The height of the plants was measured at monthly intervals. The plants were harvested after six months. Total root length of each plant was measured and shoot biomass was calculated based on oven dry weight. Cuttings with ectomycorrhizal inoculation had better growth in terms of height total root length and shoot biomass compared to noninoculated plants. The combination treatment of ECM inoculation and trimming (T3) produced plants with the best height growth while the treatment of ECM inoculation alone (T1) produced plants with significantly better root length and shoot biomass. Trimming alone (T2) produced plants with the lowest growth performance for all parameters. No significant difference in root biomass was observed regardless of the treatment. Application of mycorrhizal inoculation is recommended to improve growth of plants in the nursery. Further research on ectomycorrhizal inoculation should also be carried out especially with other dipterocarps to better understand the symbiotic activities of both the fungus and the host.

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Abstract

A nursery trial was set up at the Forest Research Institute Malaysia (FRIM) to determine the effect of trimming and ectomycorrhizal (ECM) inoculation on the growth of Hopea odorata rooted cuttings. This study consisted of four treatments T1 – ectomycorrhizal inoculation T2 - trimming T3 - ectomycorrhizal inoculation + trimming and T4 - untreated control (without ectomycorrhizal inoculation and without trimming). Hopea odorata cuttings were inoculated with an indigenous ectomycorrhizal inoculum Tomentella sp. in peat: vermiculite. Cuttings were inoculated one week after transplanting into polybags containing a standard potting mix. Trimming was carried out at two-week intervals when the plants showed signs of producing a second leader. The height of the plants was measured at monthly intervals. The plants were harvested after six months. Total root length of each plant was measured and shoot biomass was calculated based on oven dry weight. Cuttings with ectomycorrhizal inoculation had better growth in terms of height total root length and shoot biomass compared to noninoculated plants. The combination treatment of ECM inoculation and trimming (T3) produced plants with the best height growth while the treatment of ECM inoculation alone (T1) produced plants with significantly better root length and shoot biomass. Trimming alone (T2) produced plants with the lowest growth performance for all parameters. No significant difference in root biomass was observed regardless of the treatment. Application of mycorrhizal inoculation is recommended to improve growth of plants in the nursery. Further research on ectomycorrhizal inoculation should also be carried out especially with other dipterocarps to better understand the symbiotic activities of both the fungus and the host.

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Item Type:	Conference or Workshop Item (Paper)
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. QK 495 D564R859 2005 (095003273) Call Number
AGROVOC Term:	Dipterocarps
AGROVOC Term:	Hopea
AGROVOC Term:	Dipterocarpaceae
AGROVOC Term:	Trimming (plants)
AGROVOC Term:	Inoculation
AGROVOC Term:	Ectomycorrhizae
AGROVOC Term:	Cuttings
AGROVOC Term:	Height
AGROVOC Term:	Root length
AGROVOC Term:	Shoots
Geographical Term:	MALAYSIA
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:52
URI:	http://webagris.upm.edu.my/id/eprint/7691

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