Growth and Yield of Teak (Tectona grandis Linn.) under Different Regeneration Methods In Khun Mae KhumMee Plantation, Phrae Province

Abstract

Growth and yield of teak under the different regeneration methods was studied at Khun Mae Khum Mee Plantation, Rongkwang District, Phrae Province. The objective of this study were to compare growth and yield of teak under the different regeneration methods. e.g. stump planting and coppicing in the second rotation of 1-12 year-old of teak at 4m x 4m in spacing. The 5 sample plots of 1 rai in each age classe were randomed set up for measuring growth and survival rate of teak. Paired sample t-test was used as statistical comparison. Logistic growth curve was used for growth pattern analysis

The results showed that teak from coppicing were higher in diameter at ground level (Do), diameter at breast height (DBH) and individual stem volume than from stump planting. However, Statistical analysis found that both regeneration methods were significantly different in 1, 3, 5, 6, 9, 10 and 12 year-old. In contrast, there was no significantly different in 2, 4, 7, 8 and 11 year-old. In addition, only 4 age classes, 1, 3, 9 and 12 year-old, of teak height were significantly different. Logistic growth curve showed that the maximum growth of coppicing teak was 12 year-old while 10 year-old was indicated in stump planting. Therefore, coppicing can be applied for teak regeneration and thinning should be used for stimulating growth of remaining trees.

Keywords: growth, Khun Mae Khum Mee plantation, Phrae province, regeneration, yield