Morphological characterization of different provenances of Teak (Tectona grandis L.)

Teak (Tectona grandis L.) is an important hardwood species in Indonesia. Morphological description of Indonesian teak remains inadequate. The purpose of this study was to determine the morphological traits of teak from the different provenances: Malabar, Java and Muna. The study was observed eight macroscopic morphology variables (anthocyanin color, intensity of anthocyanin color, leaf color, leaf size, edge of the leaf, base of blade, top surface texture of leaf, and veins color) and five microscopic morphology variables (adaxial epidermal density, abaxial stomatal density, abaxial stomatal size, trichomes density, and number of trichomes types). The leaf materials were collected from trees sample of each provenance. The Java and Muna provenance presented six similarities of macroscopic morphology of traits. The Malabar provenance materials were the least similar macroscopic morphology, with only one similar trait. Malabar provenance had the highest density of trichomes and stomata. The Malabar provenance had the lowest percentage of similarity coefficient among provenance.