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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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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 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

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(7): 3732-3739
DOI: https://doi.org/10.20546/ijcmas.2020.907.437


Effect of Sowing Date and Weather Parameters on Severity of Alternaria Blight on Different Varieties of Brassica juncea
Gagandeep Singh Sohi, Amanpreet Singh, Bahaderjeet Singh* and Mamta Beniwal
Department of Plant Pathology, College of Agriculture, Guru Kashi University, Talwandi Sabo-151302, Bathinda (Punjab), India
*Corresponding author
Abstract:

The oilseed crops especially rapeseed-mustard play a pivotal role in agricultural economy of the world. In Punjab, the area under cultivation of mustard has been decreased due to Brassica crops are extremely susceptible from some major biotic and abiotic stresses. Alternaria blight caused by Alternaria brassicae is one of the most widespread and destructive fungal disease of rapeseed- mustard throughout the world. Field trials were conducted to determine the influence of two sowing dates (22nd October and 05th November) and effect of weather parameters on Alternaria blight intensity during Rabi season 2018-19. In first sowing (D1) 26.16 percent and second sowing (D2) 45.39 highest percent disease intensity (PDI) was recorded by PBR-97 and Giriraj was comparatively less disease severity in both sowing dates (D1-4.79, D2-10.65). Overall mean percent of disease severity was 17.73 and 30.35 at D1 and D2 respectively. Disease severity was increase with delay in date of sowing. Weather factors also play an important role in disease flourish. The maximum temperature (17.9-31.8°C) and minimum temperature (2.2-15.2°C) positively correlated and minimum relative humidity (30.6-63.7%), maximum relative humidity (74.1-92.6%) and rainfall had significant negative correlated with disease severity.


Keywords: Alternaria blight, Alternaria brassicae, Disease severity, Mustard, Weather parameters
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How to cite this article:

Gagandeep Singh Sohi, Amanpreet Singh, Bahaderjeet Singh and Mamta Beniwal. 2020. Effect of Sowing Date and Weather Parameters on Severity of Alternaria Blight on Different Varieties of Brassica juncea.Int.J.Curr.Microbiol.App.Sci. 9(7): 3732-3739. doi: https://doi.org/10.20546/ijcmas.2020.907.437