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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(10): 3263-3270
DOI: https://doi.org/10.20546/ijcmas.2020.910.390


Studies on Bioefficacy of Aqueous Plant Extracts against Pectobacterium carotovorum causing Black Leg and Soft Rot of Potato
Biswal* and N. K. Dhal
Department of Plant Pathology, College of Agriculture, Odisha University of Agriculture and Technology, India
*Corresponding author
Abstract:

Studies were conducted in the Department of Plant Pathology, Odisha University of Agriculture and Technology, Bhubaneswar following inhibition zone technique to test the bio-efficacy of plant extracts in vitro against Pectobacterium carotovorum causing pre-emergence and post–emergence rotting, black leg in field soft rot in storage in potato. The seeds of locally grown trees, spices and weeds are used in the tests. These were Terminalia chhebula (Chhebulic myrobalan),T. belerica (Beleric myrobalan), Emblica officinalis (Indian goose berry), (Azadirachata indica (Neem), (Greater cardamom), Rauvolfia serpentina (Snake root), Coriandrum sativum (Dhania), Cuminum cyminum (Cumin), Nigella sativa (Black cumin), Foeniculum vulgare (Fennel), Piper nigrum (Black pepper), Cassia fistula (Indian laburn), Cassia tora (Senna tora). It was observed that R.serpentina exhibited maximum size of inhibition zone .13.53 followed by A.subulatum (11.33) against the test bacterial species. The inhibition zone was found to be10.0mm in seed extracts of T.chebula and dried flower extracts of Syzygium caryophyllus while 9.30mm in F.vulgare, 8.68 in C.cyminum and 8.03mm in N.sativa. There was no statistically significant difference in inhibiting activity between A. aromaticum (7.97mm) and A.indica (7.92mm). The inhibition was same (7.01mm) in both T.bellirica and C.viscosa. In P.nigrum, C.fistula and C.tora also expressed same inhibiting activity (6.95mm). Minimum inhibition zone was observed in E.officinallis (6.68mm).


Keywords: Bioefficacy, Aqueous plant extracts, Antibacterial activity, Black leg and Soft rot
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How to cite this article:

Biswal, G. and Dhal, N. K. 2020. Studies on Bioefficacy of Aqueous Plant Extracts against Pectobacterium carotovorum causing Black Leg and Soft Rot of PotatoInt.J.Curr.Microbiol.App.Sci. 9(10): 3263-3270. doi: https://doi.org/10.20546/ijcmas.2020.910.390