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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 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(2): 1972-1978
DOI: https://doi.org/10.20546/ijcmas.2018.702.236


Management of Contaminant Mycoflora of Oyster Mushroom (var-Pleurotus florida) with Botanicals and GRAS Chemicals
Kala Chhetri*, Daisy Senapoty and D.K. Sharma
Mycology Research Section, Department of Plant Pathology, Assam Agricultural University, Jorhat 78501, India
*Corresponding author
Abstract:

Contamination of Oyster mushroom (var Pleurotus florida) bed with harmful fungi Trichoderma harzianum and Aspergillus flavus caused complete failure of mushroom crop. Management of T.harzianum and A. flavus was investigated by using four botanicals plant extracts viz.,Neem, Tulshi, Boas and Methi seed @ 5%, 10% , 20% concentration and GRAS chemicals viz., Boric acid, Calcium chloride, Sodium bi-carbonate and Sodium chloride @ 1%, 3%, 5% concentration respectively along with control under in vitro condition. The result revealed that, Boric acid at 5% concentration showed higher inhibition on mycelial growth of both fungus viz., T. harzianum (86.3 %)and A. flavus (82.55 %)followed by boas Acorus calamus (51.44 , 50.00%) 20% respectively. Also, methi seed Trigonella foenumgraecum inhibited mycelia growth of A.flavus(43.66 %) at 20% as compared to other treatments at all the concentration. Under in vivo evaluation, the application of Boas @20%, Methi seed @20%, Boric acid@ 5% and Garlic (treated control) @4% concentration increased the yield of mushroom significantly, with highest recorded yield i.e. 0.714kg/bed by application of 20% boas extract ,which was at par with the yield treated with 4% garlic extract i.e. 0.691kg/bed, followed by Boric acid at 5% concentration i.e. 0.565kg/bed and Methi at 20% concentration i.e. 0.516kg/bed respectively. Two most promising botanicals, Acorus calamus and Trigonella foenumgraecum was found to minimize the infection of mold in Oyster mushroom beds both in vitro and in vivo treatments. Under in vitro trial boric acid was found most effective to control mold infection. However, in vivo trial revealed that maximum yield was obtained from the bed treated with Acorous calamus.


Keywords: Oyster mushroom (var-Pleurotus florida), GRAS Chemicals
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How to cite this article:

Kala Chhetri, Daisy Senapoty, Sharma, D.K. 2018. Management of Contaminant Mycoflora of Oyster Mushroom (var-Pleurotus florida) with Botanicals and GRAS Chemicals.Int.J.Curr.Microbiol.App.Sci. 7(2): 1972-1978. doi: https://doi.org/10.20546/ijcmas.2018.702.236