TY - JOUR AU - SUPRIYANTO, SUPRIYANTO PY - 2011/11/17 Y2 - 2024/03/29 TI - EFFECT OF MANCOZEB 80% CONCENTRATIONS ON THE GROWTH OF CENOCOCCUM GEOPHILUM FR. UNDER IN VITRO CONDITION JF - BIOTROPIA JA - BIOTROPIA VL - 0 IS - 25 SE - Research Paper DO - 10.11598/btb.2005.0.25.212 UR - https://journal.biotrop.org/index.php/biotropia/article/view/212 SP - AB - Fungicides, such as Mancozeb 80% are used in nurseries to prevent the plant root against <br />pathogenic fungi. These fungicides may have negative impacts on beneficial organisms such as <br />ectomycorrhizal fungi. Cenococcum geophilum  is an important ectomycorrhizal fungus associated with <br />some forest trees species. <br />An in vitro experiment was conducted  in laboratory condition.  Cenococcum  geophilum was <br />cultured on solid Modified Melin Nokrans’ (MMN) medium containing Mancozeb 80 % at different <br />concentrations (0, 50, 100, 200, 300, 400, 500, 600, 700, 800, 900, and 1000  μM). A completely <br />randomized design was used with 8 replicates Petri dishes. Mancozeb 80 % decreased the growth of <br />mycelia of C. geophilum. The radial growth of mycelia was not inhibited by Mancozeb 80 % at 0 to 400 <br />μM concentrations. Fungi-static effect of Mancozeb 80 % was found at 500 to 600 μM concentrations, <br />meanwhile fungi-toxic effect of Mancozeb 80 % was obtained at concentration more than 700 μM. A <br />lethal level of Mancozeb 80% to the growth of C. geophilum was not found. <br /> <br />Key word :  fungicide/Mancozeb 80 % /Cenococcum geophilum/fungi-static, fungi-toxic <br />  ER -