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Bhagwat M.K.,Guru Nanak Institute for Research and Development GNIRD | Datar A.G.,Guru Nanak Institute for Research and Development GNIRD
Archives of Phytopathology and Plant Protection | Year: 2014

The present study was designed to evaluate in vitro antibacterial activity of herbal extracts against five plant pathogenic bacteria (viz. Xanthomonas campestris, Xanthomonas axonopodis pv. punicae, Erwinia spp., Pseudomonas syringae and Xanthomonas citri). Herbal extracts of leaves and rinds of Garcinia indica, rhizomes of Curcuma aromatica, roots of Glyccyrrhiza glabra, leaves of Nyctanthes arbor-tristis and seeds of Vernonia anthelmintica were used for screening. Screening was done using agar well diffusion method. Relatively potent extracts were shortlisted from this study and were further studied to find out their minimum bactericidal concentration (MBC). From the studies, it was observed that extracts of C. aromatica, G. indica and G. glabra have shown lowest MBC values among other tested plant extracts. This study indicates the potential of these potent plant extracts in the management of diseases caused by plant pathogenic bacteria. © 2013 © 2013 Taylor & Francis. Source


Bhagwat M.K.,Guru Nanak Institute for Research and Development GNIRD | Datar A.G.,Guru Nanak Institute for Research and Development GNIRD
Archives of Phytopathology and Plant Protection | Year: 2014

The present study was designed to evaluate in vitro antifungal activity of herbal extracts against three plant pathogenic fungi (viz. Rhizopus stolonifer, Botrytis cinerea and Colletotrichum coccodes). Extracts of leaves and rinds of Garcinia indica, rhizomes of Curcuma aromatica, roots of Glycyrrhiza gahliae, leaves of Nyctanthes arbour-tristis and seeds of Vernonia anthelmintica were used for screening. Screening was done using poisoned food technique. Relatively potent extracts were shortlisted from this study and were further assayed to find out their minimum fungicidal concentration (MFC). From the above studies, it was observed that ethyl acetate extract of rhizomes of C. aromatica and unripe fruit rinds of G. indica have shown the lowest MFC values amongst the other tested plant extracts. This study indicates that the potential of these plant extracts in the management of diseases caused by plant pathogenic fungi. © 2013 Taylor & Francis. Source


Bhagwat M.K.,Guru Nanak Institute for Research and Development GNIRD | Datar A.G.,Guru Nanak Institute for Research and Development GNIRD
Archives of Phytopathology and Plant Protection | Year: 2014

Fruits and vegetables are the most perishable agricultural commodities, and the postharvest loss of these is tremendous. The objective of this study is to reduce postharvest losses of perishables with a very simple approach. The study was conducted to find out the effect of postharvest herbal treatment on shelf life of tomatoes under ambient conditions. Three different herbal formulations of Curcuma aromatica (A), Glycyrrhiza glabra (B) and Garcinia indica (C) each at concentration of 1% w/v were studied. The tomatoes stored were evaluated on 7th and 14th day for physicochemical parameters (viz. Vitamin C, Titrable acidity, pH and total soluble solids) and percent spoilage. It was observed that the formulation of G. indica was found to be most effective. Tomatoes treated with formulation of G. indica were rated for organoleptic evaluation and got very good ratings. This study has revealed the possibility of utilisation of herbal formulations to reduce postharvest losses of tomatoes. © 2013 Taylor & Francis. Source

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