Since a few years ago the demand for orange keprok (mandarin) continues to increase, which is still marked by the high number imports amounting to 68,535 tons in 2006, mostly from China in addition to Pakistan. The high demand is due to appearance and taste of preferably orange from Siam. On the other hand the availability of mandarin still cause very little fulfillment tangerine comes from imports.
Problems faced in the development of national mandarin are:
- Area pertanaman mandarine's still a little on the orange pertanaman Siam, so efforts need to accelerate the expansion area.
- The allocation of funds for the expansion area of Directorate General of PLA has not been fully synchronization for the development of tangerine.
- The availability of seed / seeds mandarine not sufficient.
- Infrastructure perbenihan (Tree parent, block foundation and BPMT) is not fully adequate and a small area that has a facility for the development of tangerine.
- Infrastructure, irrigation, roads and facilities usahatani not available with the good
Institutions involved in the development of national mandarin is: Perbenihan Directorate of Horticulture Production and Facilities, Horticulture Protection Directorate, the Directorate General of Horticulture, Center for Horticulture Research and Development Agency, R & D Agriculture, Directorate of Procurement Area, the Directorate of Land Management, Procurement Water Directorate, the Directorate General of Land Management and Water, Directorate of Quality and Standardization, the Directorate General of Processing and Marketing of Agriculture, and Plant Research Center and Orange Sub-tropical fruit.