Abstract
The antifungal activity of ethanol and acetone extract of leaves of nine medicinal plants: Piper betel, Lowsonia inermis, Psidium guajava, Carica papaya, Moringa oleifera, Mimosa pudica, Catharanthus roseus, Adhatoda vasica and Andrographis paniculata against Fusarium oxysporum the causal agent of Fusarium wilt in tomato was assessed. All the extracts inhibited mycellial growth at various levels. Among them the superior inhibition (100%) was found in 15% concentration of ethanol extract of Lowsonia inermis and Psidium guajava against Fusarium. In all plant extract there were no significant differences between 20% and 25% concentration, except Piper betel, Carica papaya, Andrographis paniculata and Lawsonia inermis. Analysis of variance results on mycelial growth in different concentration shows that the item was highly significant.
Highlights
Tomato (Lycopersicon esculentum Mill.) is economically the most important and popular vegetables throughout the world including Bangladesh
For eco-friendly and sustainable management of Fusarium wilt disease, the present study tested the antifungal activity of ethanol and acetone extracts and their respective dilutions of nine selected medicinal plants based on their availability in Rajshahi and their traditional use against fungal pathogen
Hundred percent inhibition at 12 days after inoculation (DAI) and 25% concentration were observed on almost all plant extract except ethanol extract of Andrographis paniculata (91%), Carica papaya (89.41%), Moringa oleifera (90.59%) and on acetone extract of Andrographis paniculata (85%), Catharanthus roseus (90.76%) and Psidium guajava (87.5%)
Summary
Tomato (Lycopersicon esculentum Mill.) is economically the most important and popular vegetables throughout the world including Bangladesh. Use of synthetic fungicides is mainly practiced for management of wilt disease [3]. This measure may cause adverse effects on the environment and human health [4]. Aqueous extracts of 46 plants against Fusarium spp. revealed that 12 plants have recorded significant antifungal activity and these plants could be exploited for eco-friendly management [10]. The use of plant products for control of Fusarium wilt of tomato in Bangladesh is rather limited. We reported the effectiveness of ethanol and acetone extract of some common medicinal plants in reducing populations of F. oxysporum the causal agent of Fusarium wilt in tomato in vitro
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