Citation
A. Zuhaidi Yahya, . and K. Amir Saaiffudin, . and M. N. Hashim, . Growth response and yield of plantation-grown teak (Tectona grandis) after low thinning treatments at Pagoh Peninsular Malaysia. pp. 453-459. ISSN 0128-1283
Abstract
The aim of the study was to evaluate the effects of thinning intensity on the growth and yield of teak (Tectona grandis). The thinning was established in a humid tropical teak plantation in southern Peninsular Malaysia. An assessment on the total periodic diameter (PID) increment showed that there were significant differences between treatments (p 0.001). The total PID increments were 2.7 cm in treatment thinned down to 200 stems ha-1 (T2) 2.1 cm in 300 stems ha-1 (T3) 1.6 cm in 400 stems ha-1(T4) and 0.6 cm in unthinned control (T1). True diameter increments of treatments T1 T2 T3 and T4 were 0.6 1.9 1.6 and 1.0 cm respectively (p0.001). The calculated total volume increments (PIv) were 12.47 m3ha-1in T1 21.73 m3ha-1 in T2 19.66 m3 ha-1 in T3 and 14.02 m3 ha-1 in T4. As expected the PIv was lowest in the unthinned control treatment despite having a high number of remaining trees. The results showed that thinning regime down to 200 stems ha-1 was an appropriate stocking density for stand diameter and volume growth.
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Abstract
The aim of the study was to evaluate the effects of thinning intensity on the growth and yield of teak (Tectona grandis). The thinning was established in a humid tropical teak plantation in southern Peninsular Malaysia. An assessment on the total periodic diameter (PID) increment showed that there were significant differences between treatments (p 0.001). The total PID increments were 2.7 cm in treatment thinned down to 200 stems ha-1 (T2) 2.1 cm in 300 stems ha-1 (T3) 1.6 cm in 400 stems ha-1(T4) and 0.6 cm in unthinned control (T1). True diameter increments of treatments T1 T2 T3 and T4 were 0.6 1.9 1.6 and 1.0 cm respectively (p0.001). The calculated total volume increments (PIv) were 12.47 m3ha-1in T1 21.73 m3ha-1 in T2 19.66 m3 ha-1 in T3 and 14.02 m3 ha-1 in T4. As expected the PIv was lowest in the unthinned control treatment despite having a high number of remaining trees. The results showed that thinning regime down to 200 stems ha-1 was an appropriate stocking density for stand diameter and volume growth.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Growth |
| AGROVOC Term: | Tectona grandis |
| AGROVOC Term: | Plantations |
| AGROVOC Term: | Thinning |
| AGROVOC Term: | Humid tropics |
| AGROVOC Term: | Diameter increment |
| AGROVOC Term: | Verbenaceae |
| AGROVOC Term: | Stocking density |
| AGROVOC Term: | Biomass |
| Geographical Term: | Malaysia |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 26 Apr 2025 14:22 |
| URI: | http://webagris.upm.edu.my/id/eprint/21482 |
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