Indonesian

Abstract

Putri D, Nasir N, Alamsyah F. 2016. The effect of Arbuscular Mycorrhizal Fungi on white root disease (Rigidoporus microporus) in rubber seedlings (Hevea brasiliensis). Pros Sem Nas Masy Biodiv Indon 2: 7-11. White root fungus (Rigidoporus microporus) is the most harmful soil borne pathogen in rubber plants (Hevea brasiliensis Muell. Arg.). This disease spread by a contact between the roots of the healthy plant with the roots of the infected plant. The research about the effect of arbuscular mycorrhizal fungi (AMF) against the white root disease in rubber seedlings had been conducted from November 2015 to February 2016 in the nursery and Plant Physiology Laboratory, Department of Biology, Faculty of Mathematic and Natural Science, University of Andalas, Padang. The research aimed to determine the effect of AMF in controlling white root disease in rubber and the preventive and curative efforts to rubber plant infected by white root disease. The research used a completely randomized design with 5 treatments and 5 replications. The treatments were consisted of: (i) without AMF and white root fungus (control), (ii) 5 g AMF, (iii) white root fungus, (iv) white root fungus 2 weeks + 5 g AMF, (v) 5 g AMF 2 weeks + white root fungus. The best results were obtained from a treatment of 5 g AMF + white root fungus which capable of suppressing the percentage of infection degree by 66%.