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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
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.2018.7(10): 2422-2437
DOI: https://doi.org/10.20546/ijcmas.2018.710.281


Sesame Phyllody Disease: Symptomatology and Disease Incidence
J. Vamshi1*, G. Uma Devi2*, S. Chander Rao2 and G. Sridevi3
1Department of Plant Pathology
3Department of Entomology, College of Agriculture, Professor Jayashanker Telangana State Agriculture University, Rajendranagar, Hyderabad, Telangana, India
2ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad, Telangana, India
*Corresponding author
Abstract:

Phyllody is a serious disease of sesame caused by phytoplasma. Different types of disease symptoms are reported to be associated with sesame phyllody. The major symptoms are phyllody, Flower virescence, witches broom, shoot tip fasciation, flattening of the shoot apex and cracking of seed capsules. In addition to this, infected plants exhibit reduction of internode distance and of leaf size. Investigations were carried out on the symptomatology of phytoplasma associated with phyllody disease. Twenty genotypes were evaluated for per cent disease incidence, variation with the types of symptoms and disease score in field conditions. Among twenty genotypes two genotypes 17) ES-62 and 5) 12-JUN were found with zero per cent disease incidence resistant to phyllody disease. The disease incidence ranged from 12.5 percent (5-SAVITHRI) to a maximum of 66.66 per cent (26) SI-1687-1). The development of symptoms was also studied from 30 to 60 days after sowing where in none of genotypes produced symptoms at 30DAS, however from 45th day onwards symptoms were observed in all the genotypes except in 3 genotypes, 17) ES-62 and 5) 12-JUN did not produce any symptoms even at 60DAS. 11 Genotypes showed only phyllody symptoms, 2 genotypes produced witches broom symptom, while 2 genotypes showed phyllody as well as twisting of stem. Cracking of capsule was observed in genotype 24) JLT-408, while vivipary and phyllody symptom was observed in genotype 17) RT-351. Among 20 genotypes 17) ES-62 and 5) 12-JUN ranked as highly resistant and 4 genotypes ranked as moderately resistant.


Keywords: Phyllody, Virescence, Genotypes, Witches broom, Vivipary and Phytoplasma
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How to cite this article:

Vamshi, J., G. Uma Devi, S. Chander Rao and Sridevi, G. 2018. Sesame Phyllody Disease: Symptomatology and Disease Incidence.Int.J.Curr.Microbiol.App.Sci. 7(10): 2422-2437. doi: https://doi.org/10.20546/ijcmas.2018.710.281