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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 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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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(11): 1862-1875
DOI: https://doi.org/10.20546/ijcmas.2017.611.222


Biological Characterization of Sesamum Phyllody Disease in Assam, India
Shankar Hemanta Gogoi1*, M.K. Kalita2 and P.D. Nath1
1Department of Plant Pathology, College of Agriculture, AAU, Jorhat-13, Assam, India
2Department of Plant Pathology, Biswanath College of Agriculture, AAU,Jorhat-13, Assam, India
*Corresponding author
Abstract:

To know about the transmission behavior, biological characterization of Sesamum phyllody disease was conducted. The leafhopper Orosius albicinctus (Dist.) could transmit the disease successfully in artificial inoculation. The rate of transmission of the disease increased significantly as the no. of leafhopper was increased from 1 per plant (29.47%) to 3 per plant (84.26%). The disease transmission also increased significantly as the acquisition feeding (AFP) period increased from 3 days (49.38%) to 5 days (64.75%). Likewise, lowest disease transmission (16.67%) was observed in plants with 5 days inoculation feeding period (IFP) and increased significantly in 10 IFP (100%). The interaction effect of no. of leaf hopper/plant, acquisition feeding period and inoculation feeding period also exhibited positive and significant increase in transmission. Highest disease incidence was observed in plants inoculating with 3 no of leafhopper per plant +5 days AFP + 7and 10 days IFP and lowest in treatment with 1 leafhopper per plant + 3 days AFP + 5days IFP. Similar effect was also observed in time period taken for first appearance of symptom. Lowest time period (25 days) for first appearance of symptom was taken when plants were inoculated with 3 no of leafhopper/plant + 5days AFP + 7 and 10 days IFP and highest (39days) in plants inoculated with 1 leafhopper/plant + 3 days AFP + 5days IFP. The Sesamum phyllody disease was successfully transmitted by graft transmission (80%) and dodder (90%) but it was not transmitted by seed and sap inoculation. There was no effect in germination of seeds collected from infected sesamum plants.


Keywords: Sesamum Phyllody, Orosius albicinctus (Dist.), Acquisition feeding period, Inoculation feeding period.
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How to cite this article:

Shankar Hemanta Gogoi, M.K. Kalita and Nath, P.D. 2017. Biological Characterization of Sesamum Phyllody Disease in Assam, India.Int.J.Curr.Microbiol.App.Sci. 6(11): 1862-1875. doi: https://doi.org/10.20546/ijcmas.2017.611.222