The Effect of Elevation Gradient on the Phenological Aspect of Growth and Production of Sago Palm ( Metroxylon sagu Rottb.)

摘要

Sago is one of the crops that can be used as a source of carbohydrate. Sago also is included in the group of major tropical perishable staplefoods. Sago palms flourish under swamp or even flooded conditions. Sago palms potential to accumulate carbohydrates very large and canreach 25 tons per hectare. The acreage of sago tends to decrease as a result of land conversion. Native habitat of sago palm is in wetlandarea that also limited. The expansion of sago palm is directed to the area with relatively drier in high elevation or altitude. Thereforeneed the assessment and characterization the effect of elevation gradient on the growth and production of sago palm. Result showed that theelevation gradient has positive effect on the vegetative growth. The vegetative character increases in line with the increase of elevation. Incontrast, the increase in elevation cause delayed in the time of flowering.