PERTUMBUHAN OKULASI JERUK KEPROK BRASTEPU (CITRUS NOBILIS VAR.) MENGGUNAKAN JERUK ASAM SEBAGAI BATANG BAWAH

The growth of Citrus nobilis Var. Brastepu budding that is free from Citrus Vein Phloem Degeneration (CVPD) is explained. The method is conductedby taking of bud stick from a selected healthy citrus Brastepu plant and is then grafted into a sour orange (Citrus aurantium) as mother trees via budding method. The research is conduted in Desa Bukit, Brastagi North Sumatra, Indonesia. Optimum conditions on the budding technique have been obtained to produce good quality seedling of Citrus nobilis Var. Brastepu. Growth characteristics of the plant in various treatment conditions have been studied based on the growth leaves, stem, and branches. Analysis of the DNA using RAPD-PCR method has confirmed that all new seedling produced in the propagation method are free from CVPD.