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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.2019.8(9): 2082-2085
DOI: https://doi.org/10.20546/ijcmas.2019.809.239


Effect of Inoculum Load on Disease Initiation, Threshold Point and Population Build Up of Post Harvest Pathogen (Penicillium islandicum Sopp.) of Indian Gooseberry (Emblica officinalis Goerth)
A. K. Saini, R. S. Chauhan*, Ashwani Kumar, Narender Singh and Satish Kumar
Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana-125 004, India
*Corresponding author
Abstract:

Studies were undertaken to find out the effect of inoculum load of post harvest pathogen (Penicillium islandicum) on disease initiation, threshold point and population build up of blue mould rot in Indian gooseberry. Inoculations were made on the fruits of Indian gooseberry at five concentrations (10, 50, 100, 200 and 500 spores/ml.). The disease initiation commenced after 54 hrs. of inoculation with inoculum load of 500 spores/ml followed by 200 spores/ml where the initiation of disease was observed after 72 hrs. At lower spore load (10 spores/ml), there was no disease initiation even after 108 hrs of inoculation. Minimum number of spores required to initiate infection after 102 hrs was 50 spores/ml which can be considered as the threshold point. Maximum population build up (2 x 106 and 2 x 108) of the pathogen occurred at 500 spores/ml after 5 and 10 days of inoculation, respectively.


Keywords: Penicillium islandicum, Inoculum load, Disease initiation, Threshold point
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How to cite this article:

Saini, A. K., R. S. Chauhan, Ashwani Kumar, Narender Singh and Satish Kumar 2019. Effect of Inoculum Load on Disease Initiation, Threshold Point and Population Build Up of Post Harvest Pathogen (Penicillium islandicum Sopp.) of Indian Gooseberry (Emblica officinalis Goerth).Int.J.Curr.Microbiol.App.Sci. 8(9): 2082-2085. doi: https://doi.org/10.20546/ijcmas.2019.809.239