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

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - 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.2017.6(10): 3529-3538
DOI: https://doi.org/10.20546/ijcmas.2017.610.416


Epidemiological Studies of Target Leaf Spot Disease of White Sarpagandha (Rauvolfia serpentine) Caused by Corynespora cassicola and Rust Disease of Bach (Acorus calamus) Caused by Uromyces acori
Solanki Sarkar and Basudeb Dasgupta*
Department of Plant Pathology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia-741252, West Bengal, India
*Corresponding author
Abstract:

Fixed plot survey was conducted at monthly interval during 2014-15 and 2015-16 to study the influence of different weather factors on the development of target leaf spot of White Sarpagandha (Rauvolfia serpentine) caused by Corynespora cassicola and rust of Bach (Acorus calamus) caused by Uromyces acori. To study the relation, correlation of coefficients and multiple regression analysis (MRA) between percent disease incidences of about diseases with different weather parameters were done to find out the role of weather parameters on the development of above diseases. The result showed that the partitioning of correlation of coefficients into direct and indirect effect of above diseases was negatively correlated to different weather parameters. While deriving on step down MRA of two years pooled data of target leaf spot of White Sarpagandha it was revealed that with increasing in minimum temperature and sunshine hours there was significant increase in percent disease incidence (PDI) whereas with decrease RH evening, RH morning, maximum temperature, wind speed and rainfall there was increase in PDI which was confirmed by high R2 value (0.83). In case of rust disease of Bach, from two years pooled data of step down MRA revealed that with increase in minimum temperature and sunshine hours there was significant increase in PDI whereas with decreasing in maximum temperature, rainfall, RH morning, RH evening and wind speed there was significant increase in PDI which was confirmed by high R2 value (0.843).


Keywords: Rauvolfia serpentine, Acorus calamus, Corynespora cassicola, Uromyces acori, Multiple regression analysis.
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How to cite this article:

Solanki Sarkar and Basudeb Dasgupta. 2017. Epidemiological Studies of Target Leaf Spot Disease of White Sarpagandha (Rauvolfia serpentine) Caused by Corynespora cassicola and Rust Disease of Bach (Acorus calamus) Caused by Uromyces acori.Int.J.Curr.Microbiol.App.Sci. 6(10): 3529-3538. doi: https://doi.org/10.20546/ijcmas.2017.610.416