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Efficacy of biocontrol antagonists against root knot nematode, Meloidogyne incognita infecting tomato

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Title Efficacy of biocontrol antagonists against root knot nematode, Meloidogyne incognita infecting tomato
 
Creator Raut, Shital C
 
Contributor Mahapatra, S.N
 
Subject Pseudomonas fluorescens, Bacillus subtilis, Meloidogyne incognita
 
Description Experiments were conducted in net house to assess the biocontrol potential
of liquid formulation of Pseudomonas fluorescens and Bacillus subtilis on the
multiplication of Meloidogyne incognita and growth of tomato plant cv. Pusa ruby.
Among the different treatments evaluated, drenching the pot soil with either of the
bioagents @ 10ml/litre at transplanting and again at 30days after transplanting
recorded the maximum growth and biomass of tomato plant with decreased root
knot nematode multiplication, galls and egg masses. Drenching the soil @ 10ml/litre
at transplanting alone was equally effective in significantly enhancing the plant
growth and reducing the nematode infection. This treatment with P. fluorescens
resulted 15.9% increase in shoot height, 16.4% in shoot dry weight and 18.4% in
root dry weight. Host infection in terms of number galls and egg masses per plant
was decreased by 33.6 and 32.6% respectively. However, B. subtilis was found
better in reducing nematode multiplication and improving plant growth than
P. fluorescens. Drenching with B. subtilis @ 10ml/litre at transplanting resulted 19.2,
58.1 and 43.1% improvement in shoot height, dry weight of shoot and root,
respectively, whereas 62.2 and 62.3% reduction were recorded in number of galls &
egg masses respectively, as compared to untreated check.
 
Date 2017-01-04T14:05:23Z
2017-01-04T14:05:23Z
2014
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/94442
 
Language en
 
Relation Th;
 
Format application/pdf