ASOSIASI FUNGI MIKORIZA ARBUSKULA (FMA) PADA BERBAGAI TINGGI SEMAI PERMUDAAN ALAM NYAMPLUNG ( Calophyllum inophyllum L) DI KABUPATEN KETAPANG

Abstract

Nyamplung (Calophyllum inophyllum L) is known to be  associated with AMF, but it is still unknown whether the association has begun to occur when cotyledons are still present or starting at a certain level of regeneration.  Research  has been done  in  Pecal Beach Kinjil River in Ketapang district.  The purposes of the research are: (1) to assess the amount of spores and genus AMF associated with  its  development  in the rhizosphere of nyamplung regeneration nature seedling stage from 10 cm to 150 cm, and (2) to determine root infection percentage in order to know  the level of the association at any size of penage regeneration seedlings.  The research is a field research by survey method  with  sampling  technique  against  natural regeneration  seedling level of 10 cm, 30 cm, 60 cm, 90 cm 120 cm, and 150 cm.  The data was collectedin laboratoryon the form of the number of spores and genus AMF and the percentage of infections in the roots.  The  research results showed that  there  were  616  AMF spores  fruit /  100 g of sandy soil consisting of the genus Glomus  (  597  pieces /  100 g sandy soil), Gigaspora  (  15  pieces /  100 g sandy soil) and Scutellospora  (  4  pieces / 100 g sandy soil).  The development of the  number of spores increased from the height of the seedling's natural regeneration  measuring  was 10 cm to 150 cm.  The results of observations on the roots found thatAMF infection is in the form of vesicles and arbuscular.  Infection at the root of natural penage regeneration from 84.44-100%, indicating the level of association between AMF and nyamplung seedling's natural regeneration in the high class  (  grade  5  )  .  

Keywords: Arbuscular Mycorrhizal  Fungi  (AMF)  Nyamplung  (Calophyllum  inophyllumL) Natural  Seedling  Regeneration,  Pecal Beach