Keragaan Pertumbuhan Vegetatif Batang Bawah Bibit Manggis dan Tiga Kerabatnya

The plant growth was influenced by plant genetic and growth environment. In a homogeneous growth environment, the difference variables plant growth caused by plant genetic differences. Early growth of the plants will produce good production. In the field, the vegetative growth performance of mangosteen and related species seedling is not yet well defined. The research which aim to find rootstock vegetative growth performance of mangosteen and three related species seedling, was conducted in Indonesian Tropical Fruit Research Institute, Solok from June 2012-August 2013. Four spesies Garcinia which consist of mangosteen and three related species G. porrecta, G. celebica, and G. redia were arranged in randomized block design and five replications. The results showed that there were different performance of mangosteen and three related species at growth variables i.e. plant height, leaf length, leaf width, number of leaf, leaf area per strand, leaf area, specific leaf weight, stem diameter, number of branch, canopy diameter, plant dry weight, shoot dry weight, root dry weight, shoot/root ratio, bast dry weight, and leaf dry weight. In generally, G. porrecta was the most rapid growth at 12 months than the other species, while G. celebica was the slowest growth than the other species. G. porrecta could be used as rootstock candidate at 12 months. Keywords : Mangosteen, genetic character, vegetative growth