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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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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(2): 142-148
DOI: https://doi.org/10.20546/ijcmas.2018.702.018


Effect of Nitrogen Fertilizer on Population of Aphid [Brevicoryne brassicae (L.)] in Radish
P. Megaladevi*, D. Pallavi, M. Manjunatha and Sharanabasappa
University of Agricultural and Horticultural Sciences, College of Agriculture, Shivamogga- 577225, Karnataka, India
*Corresponding author
Abstract:

The study was carried out during 2015-2016 at College of Agriculture, Navile, Shivamogga by raising single radish plant per pot. Six levels of Nitrogen, i.e. 0, 50, 75, 100, 150 and 200 percent of recommended level of nitrogen per plant (225.00 mg N/plant) were applied twice, before sowing and two weeks after sowing. Sampling for aphid Brevicoryne brassicae (L.) was done at weekly interval. The mean incidence of aphids increased as nitrogen level increased which was significantly different among plants receiving different levels of Nitrogen. High level of N application as 337.50 mg N/plant and 450.00 mg N/plant recorded significantly higher incidence of aphids (334.69 and 478.13 aphids/plant, respectively) compared to 225 mg N/plant [Recommended Package of Practices (RPP)].


Keywords: Radish, Nitrogen, aphids
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How to cite this article:

Megaladevi, P., D. Pallavi, M. Manjunatha and Sharanabasappa. 2018. Effect of Nitrogen Fertilizer on Population of Aphid [Brevicoryne brassicae (L.)] in Radish.Int.J.Curr.Microbiol.App.Sci. 7(2): 142-148. doi: https://doi.org/10.20546/ijcmas.2018.702.018