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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
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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(6): 624-630
DOI: https://doi.org/10.20546/ijcmas.2019.806.072


Studies on Pathogenicity of Potato cyst Nematode, Globodera rostochiensis and G. pallida on Potato
S. Vanitha1, A. Shanthi1*, Priyank Hanuman Mhatre2, B. Anita1, P. Kalaiarasan1, P. Marimuthu3 and M. Muthamilan4
1Department of Nematology, Tamil Nadu Agricultural University, Coimbatore-03, Tamil Nadu, India
2ICAR-Central Potato Research Station, Muthorai, Udhagamandalam – 643 004, India
3Department of Agriculture Microbiology, TNAU, Coimbatore -641 003, India
4Department of Plant Pathology, TNAU, Coimbatore -641 003, India
*Corresponding author
Abstract:

The pot culture experiments were conducted under polyhouse condition to study the pathogenicity of potato cyst nematode, Globodera rostochiensis and G. pallida on potato cv. Kufri Jyoti at different inoculum levels of 0, 10, 100, 1000 and 10,000 J2 per plant. The results revealed that, the potato cyst nematode Index was 4.0 at inoculum level of 10,000 J2/plant and 1.75 at 10 J2 per plant. However, the reproduction factor was highest 215.61 with the lowest inoculum level of 10 J2/ plant where as 118.42, 47.71 and 22.02 respectively with the initial inoculum levels of 100, 1000 and 10,000 J2 / plant. A gradual increase in the nematode inoculum levels declined the plant growth parameters progressively from 100 to 10,000 second stage juveniles (J2) per plant. The highest reduction in plant growth was recorded at a level of 10,000 J2/plant and the minimum was recorded at a level of 100J2/plant, where as 1000 J2/plant recorded as an Economic Threshold Level. Inoculation of 1000 J2/plant showed 40.60, 32.00, 40.07 and 70.20 per cent reduction in plant height, fresh weight, dry weight and yield per plant compared to uninoculated control. The maximum of 87.35 % yield reduction was recorded, at an inoculum level of 10,000 J2/plant followed by 70.20 and 27.00 % at a levels of 1000 and 100 J2/plant respectively.


Keywords: Pathogenicity, G. rostochiensis, G. pallida, Kufri Jyoti
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How to cite this article:

Vanitha, S., A. Shanthi, Priyank Hanuman Mhatre, B. Anita, P. Kalaiarasan, P. Marimuthu and Muthamilan, M. 2019. Studies on Pathogenicity of Potato cyst Nematode, Globodera rostochiensis and G. pallida on Potato.Int.J.Curr.Microbiol.App.Sci. 8(6): 624-630. doi: https://doi.org/10.20546/ijcmas.2019.806.072