NUTRIENT CONCENTRATIONS IN THREE NEPENTHES SPECIES (NEPENTHACEAE) FROM NORTH SUMATRA

MANSUR, M., SALAMAH, A., MIRMANTO, E. & BREARLEY, F. Q. 2022. Nutrient concentrations in three Nepenthes species (Nepenthaceae) from North Sumatra. Reinwardtia 21(2): 55‒62. — is a genus of carnivorous plants that are unique ornamental plants, but their nutrient concentration relationships have not been studied much, especially endemic on the island So far, analysis mostly limited to leaves. There few reports pitcher fluid and soil around where it grows. Leaves, fluid, growth sites each i.e., sumatrana, N. spectabilis, tobaica, Sumatra province were collected for analyses (N, P, K, Ca, Mg, Na). The results showed leaves generally low with those greater than fluid. nutrients sumatrana (lowland species) was least (except N Na) when compared spectabilis tobaica (highland species), likely reflecting poorly fertile soil. In contrast, tobaica. When across an extensive data set, we show leaf does change elevation, whereas P declines N:P ratio increases suggesting obtaining sufficient prey at higher elevations.