Follow
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 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

See Guidelines to Authors
Current Issues
Download Publication Certificate

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.2021.10(7): 592-597
DOI: https://doi.org/10.20546/ijcmas.2021.1007.064


Management of Onion Purple Blotch Disease by using Fluorescent Pseudomonads
Anand*
Department of Plant Pathology, Tamil Nadu Agricultural University, Coimbatore - 641 003, Tamil Nadu, India
*Corresponding author
Abstract:

Fifteen isolates of fluorescent pseudomonads were tested against the mycelial growth of Alternaria porri, the causal agent of purple blotch disease of onion. In vitro studies indicated that the isolate EFP1 exerted the maximum inhibition (74.40%) on the mycelial growth showing 2.15 cm colony diameter of the pathogen as against 8.40 cm in the control. Two field trials were conducted one at Cotton Research Station Farm, Veppanthattai and another at Arumbavur, Perambalur Dt. to test the efficacy of talc-based formulation of Pseudomonas fluorescens (EFP1) against onion purple blotch disease. Among the treatments, Pseudomonas EFP1 applied as seed (bulb) treatment (10g/kg) + soil application (SA) (2.5 kg/ha) + 3 foliar spray (FS) (3g/lit) at 30, 45 and 60 days after planting (DAP) recorded the least purple blotch incidence of 5.43, 7.05 and 6.24 PDI at 35, 50 and 65 days after planting (DAP), respectively. The same treatment also recorded the higher bulb yield of 15.4 t/ha) with the BC ratio of 1:5.51.


Keywords: Alternaria porri, onion, Pseudomonas fluorescens, seed treatment, soil application
Download this article as Download

How to cite this article:

Anand, T. 2021. Management of Onion Purple Blotch Disease by using Fluorescent Pseudomonads.Int.J.Curr.Microbiol.App.Sci. 10(7): 592-597. doi: https://doi.org/10.20546/ijcmas.2021.1007.064