INVENTARISASI, KARAKTERISASIMORFOLOGI, DAN UJI VIABILITAS BENIHPACAR TERE (Impatiens platypetala Lindl.)HASIL EKSPLORASI DI KAWASAN TAMAN NASIONAL BROMO TENGGER SEMERU

BromoTenggerSemeruNationalPark(BTSNP)isoneofnaturalconservationareasinEastJavawitharound1,025plantspecies.Impatiensplatypetala,locallyknownaspacartere,isaplantspeciesmostlybefoundinmountainousareasofJavaandwithhighpotentialasmedicinalandornamentalplant.However,researchonthisspeciesisstilllimited.Thisstudywasconductedtoinventory,describethemorphologicalcharacteristicsandtesttheseedviabilityofpacartereinfourresortsofBTSNP,namelyRPTNGunungPenanjakan,CobanTrisula,Senduro,andRanuDarungan.Surveymethodwasusedtoinventorytheplantpopulations.Directfieldobservationwasusedtocharacterizetheplantmorphology.Seedsviabilitytestwasconductedthroughgerminationonstrawpapermedia.TheresultsshowedthatpacarterepopulationswerefoundinthosefourBTSNPresorts,onshadeandhumidhabitats,alsoinopenareaswithwetsoilconditions.Theplantischaracterizedasanerectparennialherb,spursedpinkflower,capsulafruitwhichdehiscentwhenripe,withflattenedcone-shapedandsmoothhairyseeds.Seedgerminationtestshowedthattheseedsbegantogerminateonday5aftersowing(around20sprouts/day),epigealtype,withpercentageofgerminationandviabilitywas56%and90%respectively.ResultsofthisstudyareexpectedtoprovidebasicinformationtosupporttheconservationeffortsofI.platypetalabothin-situandex-situ(seedandlivingplant),alsoitspropagationeffortsforfurtherbioprospectingresearches