Morphological characterization of three types of Asam gelugur (Garcinia atroviridis) at three altitude in North Sumatra

Abstract Asam gelugur fruit has economic value. The government’s reforestation program empowers farmers through planting asam seeds at 3 altitudes, problem is that not all of trees produce fruit. Characterization morphology needs to be carried out obtain basic data for selecting prospective mother as a source seed supply guarantees bear This study aims characterize the based on classification local wisdom North Sumatra, namely classifying success or failure pollination process followed by formation altitudes. was conducted in three altitudes: lowlands 1-<400 m above sea level (asl), medium (400- < 800 asl and highlands (800- 1300 mdpl), exploration using survey method with IPGRI Descriptor guide purposively sampling. results found types Sumatra: Female, Male Shemale (muzzy) There no effect altitude morphological characters gelugur, except sharpness leaves color shoots.People Female tree, if successful produces tree routinely name never been successfully pollinated bears called male tree.The shemale whose occurs sometimes successfully. were five striking differences characteristics wisdom. different Character shape (canopy), petal’s color, fruit, Color young leaves, thickness leaves.