Abstract:
Hevea brasiliensis or commonly known as rubber tree is the most common rubber
species planted nationwide. Wild rubber species such as H. benthamiana,
H. camargoana, H. guianensis, H. nitida, H. pauciflora, H. rigidifolia and
H. spruceana are not been explored as commercial planting materials. There was an
indication that showed the declining in genetic advance of rubber planting materials
derived from H. brasiliensis. This was due to narrow genetic base and inbreeding
depression. The objectives of this research were to determine the morphological and
biochemical characteristics, rootstock-scion compatibility and latex yield in eight
different wild Hevea species. The morphological and biochemical characteristics of
wild Hevea species were analyzed with various methods including visual
observation, light microscopy, Scanning Electron Microscopy (SEM), Transmission
Electron Microscopy (TEM), Gel Permeation Chromatography (GPC) and
spectrophotometry. Rootstock-scion compatibility and latex yield were analyzed
with bud-grafting method and fresh latex collection.
