TY - JOUR AU - A Zuhaidi Yahya, PY - 2022/06/11 Y2 - 2024/03/28 TI - GROWTH RESPONSE AND YIELD OF PLANTATION-GROWN TEAK (TECTONA GRANDIS) AFTER LOW THINNING TREATMENTS AT PAGOH, PENINSULAR MALAYSIA JF - Journal of Tropical Forest Science (JTFS) JA - JTFS VL - 23 IS - 4 SE - Articles DO - UR - https://jtfs.frim.gov.my/jtfs/article/view/664 SP - 453-459 AB - <p>ZUHAIDI YAHYA A, AMIR SAAIFFUDIN K &amp; HASHIM MN. 2011. Growth response and yield of plantationgrown<br>teak (<em>Tectona grandis</em>) after low thinning treatments at Pagoh, Peninsular Malaysia. The aim of the<br>study was to evaluate the effects of thinning intensity on the growth and yield of teak (<em>Tectona grandis</em>). The<br>thinning was established in a humid tropical teak plantation in southern Peninsular Malaysia. An assessment<br>on the total periodic diameter (PI<sub>D</sub>) increment showed that there were significant differences between<br>treatments (p ≤ 0.001). The total PI<sub>D</sub> increments were 2.7 cm in treatment thinned down to 200 stems<br>ha<sup>-1</sup> (T2), 2.1 cm in 300 stems ha<sup>-1</sup> (T3), 1.6 cm in 400 stems ha<sup>-1</sup> (T4) and 0.6 cm in unthinned control<br>(T1). True diameter increments of treatments T1, T2, T3 and T4 were 0.6, 1.9, 1.6 and 1.0 cm respectively<br>(p ≤ 0.001). The calculated total volume increments (PI<sub>v</sub>) were 12.47 m<sup>3</sup> ha<sup>-1</sup> in T1, 21.73 m<sup>3</sup> ha<sup>-1</sup> in T2,<br>19.66 m<sup>3</sup> ha<sup>-1</sup> in T3 and 14.02 m<sup>3</sup> ha<sup>-1</sup> in T4. As expected the PI<sub>v</sub> was lowest in the unthinned control<br>treatment despite having a high number of remaining trees. The results showed that thinning regime down to<br>200 stems ha<sup>-1</sup> was an appropriate stocking density for stand diameter and volume growth.<br><br></p> ER -