Effect of certain medicinal plants against Alternaria blight of rapeseed- mustard under organic farming system in Manipur
The antifungal activity of aqueous extracts of locally available medicinal plants have been tested in vitro condition against Alternaria brassicae, the causal agent of Alternaria blight. Evaluation of plant extracts against mycelial growth of the pathogen at different concentrations viz., 5%, 10% and 15 % using poison food technique showed higher percentage of inhibition in Azadirachta indica, Michelia champaca, Adhatoda vasica and Eryngium foetidum at 15% concentration. Among them Azadirachta indica showed the highest percentage of inhibition (55.80% )over control. The remaining plants produced less inhibitory effect thereby Zingiber officinale manifested the lowest inhibition (24.20%). In field trial for two consecutive rabi seasons ( 2014 & 2015) Azadirachta indica resulted the highest percentage of disease control .
Awasthi, R.P., & Kolte, S.J. (1994): Epidemiological factors in relation to development and prediction of Alternaria blight of rapeseed and mustard. Indian Phytopathology, 47, 395 – 399.
Ganie, S.A., Pant, V.R., Ghani, M.Y., Lone., A.H., Anjum, Q., & Razvi, S.M. (2013). In vitro evaluation of plant extracts against Alternaria brassicae (Berk.) Sacc. causing leaf spot of mustard and Fusarium oxysporum f. sp. lycopersici causing willt of tomato. Scientific Research Essays , 8, 1808- 1811.
Gerard, E., Chandrasekhar,V., & Kurucheve, V. (1994) . Effect of six selected plant products and oil cakes on the sclerotial production and germination of Rhizoctonia solani, Indian Phytopathology, 47, 183-185.
Kaidan, A.K., & Saharan, G.S. (1983): Symptomatology, host range and assessment of yield losses due to Alternaria brassicae infection in rapeseed and mustard. Indian Journal of Mycology and Plant Pathology, 13, 319 – 323.
Kaushik, C.D., Saharan, G.S., & Kaushik, J.C. (1984). Magnitude of losses in yield and management of Alternaria blight in rapeseed. Indian Phytopathology, 37,398.
Khalil A.M . (2001). Phytotoxic properties in the aquous extracts of some plants. Pakistan Journal of Biol0gical Sciences, 4: 392 – 394.
Narayanasamy, P. (2010) . Microbial Plant Pathogens – Detection and Disease Diagnosis: Fungal Pathogens, vol. 1, Springer Science & Business Media , p.9.
Nene, Y.L ., & Thapliyal, P. N. (1993). Fungicides in plant disease control 3rdedition Oxford and IBH Publishing Co., New Delhi. p. 531.
Riker, A.J., & Riker, R.S. (1936). Introduction to research on plant diseases. St. Louis, Chicago, New York and Indianapolis, John’s , Swift Company, 153.
Sahani, R.K . & Saxena, A.R. (2008). Efficacy of extracts of medicinal plants against Fusarium oxyxporum f. sp. pisi. Annals of Plant Protection Sciences , 16: 534 – 536.
Saharan, G.S. (1992): Management of rapeseed – mustard diseases. In: Kumar D and Rai M (eds.) Advances in oilseed research. Vol. 1 Rapeseed and Mustard , Scientific Pub. Jodhpur, pp. 155 – 188.
Satish , S., Raghavendra, M.P., & Paveesha, K .A. (2009) . Antifungal potentiality of some plant extracts against Fusarium sp. Archives of Phytopathology and Plant Protection , 42 : 618 – 625.
Strange, R.N., & Scott, P.R. (2005). Plant diseases : a threat to global food security. Annual Review of Phytopathology, 43, 83 – 116.
Usman, K . .M., Durairaj, P., Karunanidhi, K . , & Thangaveni, S. (1992). In : Groundnut – a global perspective. (Ed. Nigam, S.N.). Proc. Int. Workshop. 25 – 29 Nov. 1991. ICRISAT, India. 474pp.
Varma, J, & Dubey, N.K. (1999). Prospectives of botanicals and microbial products as pesticides of tomorrow. Current Science, 76, 172 – 179.
Vincent, J.M. (1947). Distortion of fungal hyphae in presence of certain inhibitors. Nature, 150, 850.
Submission of an article implies that the work described has not been published previously (except in the form of an abstract or as part of a published lecture or academic thesis), that it is not under consideration for publication elsewhere, that its publication is approved by all authors and tacitly or explicitly by the responsible authorities where the work was carried out, and that, if accepted, will not be published elsewhere in the same form, in English or in any other language, without the written consent of the Publisher. The Editors reserve the right to edit or otherwise alter all contributions, but authors will receive proofs for approval before publication.
Copyrights for articles published in International Journal of Innovative Knowledge Concepts are retained by the authors, with first publication rights granted to the journal. The journal/publisher is not responsible for subsequent uses of the work. It is the author's responsibility to bring an infringement action if so desired by the author.