Effectiveness of several plant extracts as botanical fungicides to control damping-off disease caused by Sclerotium rolfsii on soybean

Abstract Sclerotium rolfsii is the causal organism of damping-off disease soybean. Control this usually carried out by using chemical fungicides that have a negative impact on environment. One efforts to overcome problem botanical from plant extracts. This study aims determine effect extracts Alpinia purpurata, Zingiber officinale, Curcuma longa, xanthorrhiza, and Kaempferi galanga in-vitro growth in-vivo In addition, phytochemical test was also undertaken content secondary compounds found in The experiment at Chemistry Laboratory Faculty Mathematics Natural Sciences, Microbiology Greenhouse Agriculture University Mataram, July until October 2020. experiments used completely randomized design (CRD) with seven treatments three replications. were A. Z. C. K. concentration 5% (v/v), control (+), alcohol (-). results showed could suppress S.rolfsii in-vitro. However, trial, no