Abstract
A pot experiment representing nursery-bed, was carried out to evaluate the antagonistic potential of various rhizobacterial strains, applied as seed treatment on dwarf rice (cv. PR-106) for the mitigation of Meloidogyne graminicola activity during early growth of rice seedling. Twenty two rhizobacterial strains belonging to Gluconacetobacter diazotrophicus; Azotobacter chroococcum; Pseudomonas maltophila. P. fluorescens and Bacillus spp., were tested. All the bacteria were found to reduce nematode infection to varing levels. However, seed inoculation with G. diazotrophicus Co99-70 was the most effective of all the strains in preventing juvenile penetration by up to 95 per cent, ten days after seed germination compared to that in untreated check. Among all the bacteria tested, G. diazotrophicus Co99-70; Bacillus sp. RKB-91 and RKB-68; Pseudomonas sp. RKP-33 were significantly effective in reducing root-galling severity ranging between 67 and 84% and in suppressing nematode multiplication. Additionally, these bacteria also helped in promoting seedling growth.
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Claims 5
Claim · model-written summary
All tested rhizobacterial strains reduced nematode infection in dwarf rice compared with untreated check
- Taxon
- dwarf rice
Oryza sativae0 - Material
- PR-106e0
- Treatment
- seed treatmente0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolae0pest
- Second interactor
- rhizobacterial strainse0biocontrol_agent
- Outcome
- nematode infectione1
- Direction
- reducee1
- Comparator
- untreated checke2
- Setting
- pot experimente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A pot experiment representing nursery-bed, was carried out to evaluate the antagonistic potential of various rhizobacterial strains, applied as seed treatment on dwarf rice (cv. PR-106) for the mitigation of Meloidogyne graminicola activity during early growth of rice seedling”
e1“All the bacteria were found to reduce nematode infection to varing levels”
e2“seed inoculation with G. diazotrophicus Co99-70 was the most effective of all the strains in preventing juvenile penetration by up to 95 per cent, ten days after seed germination compared to that in untreated check”
Claim · model-written summary
Seed inoculation with G. diazotrophicus Co99-70 prevented juvenile penetration of rice roots by up to 95 per cent
- Taxon
- dwarf riceOryza sativae0
- Treatment
- seed inoculation with G. diazotrophicus Co99-70e2
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolae0pest
- Second interactor
- G. diazotrophicus Co99-70Gluconacetobacter diazotrophicuse2biocontrol_agent
- Outcome
- juvenile penetratione2
- Direction
- preventinge2
- Value
- up to 95 per cente2
- Comparator
- untreated checke2
- Setting
- pot experimente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A pot experiment representing nursery-bed, was carried out to evaluate the antagonistic potential of various rhizobacterial strains, applied as seed treatment on dwarf rice (cv. PR-106) for the mitigation of Meloidogyne graminicola activity during early growth of rice seedling”
e2“seed inoculation with G. diazotrophicus Co99-70 was the most effective of all the strains in preventing juvenile penetration by up to 95 per cent, ten days after seed germination compared to that in untreated check”
Claim · model-written summary
G. diazotrophicus Co99-70, Bacillus and Pseudomonas strains significantly reduced root-galling severity in dwarf rice by 67 to 84%
- Taxon
- dwarf riceOryza sativae0
- Treatment
- rhizobacterial strainse0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolae0pest
- Second interactor
- G. diazotrophicus Co99-70Gluconacetobacter diazotrophicuse3biocontrol_agent
- Outcome
- root-galling severitye3
- Direction
- reducinge3
- Value
- 67 and 84%e3
- Qualifier
- Bacillus sp. RKB-91 and RKB-68; Pseudomonas sp. RKP-33e3
- Setting
- pot experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A pot experiment representing nursery-bed, was carried out to evaluate the antagonistic potential of various rhizobacterial strains, applied as seed treatment on dwarf rice (cv. PR-106) for the mitigation of Meloidogyne graminicola activity during early growth of rice seedling”
e3“G. diazotrophicus Co99-70; Bacillus sp. RKB-91 and RKB-68; Pseudomonas sp. RKP-33 were significantly effective in reducing root-galling severity ranging between 67 and 84% and in suppressing nematode multiplication”
Claim · model-written summary
Rhizobacterial strains significantly suppressed root-knot nematode multiplication in dwarf rice
- Taxon
- dwarf riceOryza sativae0
- Treatment
- rhizobacterial strainse0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolae0pest
- Second interactor
- G. diazotrophicus Co99-70Gluconacetobacter diazotrophicuse3biocontrol_agent
- Outcome
- nematode multiplicatione3
- Direction
- suppressinge3
- Qualifier
- Bacillus sp. RKB-91 and RKB-68; Pseudomonas sp. RKP-33e3
- Setting
- pot experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A pot experiment representing nursery-bed, was carried out to evaluate the antagonistic potential of various rhizobacterial strains, applied as seed treatment on dwarf rice (cv. PR-106) for the mitigation of Meloidogyne graminicola activity during early growth of rice seedling”
e3“G. diazotrophicus Co99-70; Bacillus sp. RKB-91 and RKB-68; Pseudomonas sp. RKP-33 were significantly effective in reducing root-galling severity ranging between 67 and 84% and in suppressing nematode multiplication”
Claim · model-written summary
Rhizobacterial strains promoted seedling growth of dwarf rice
- Taxon
- dwarf riceOryza sativae0
- Treatment
- these bacteriae4
- Outcome
- seedling growthe4
- Direction
- promotinge4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A pot experiment representing nursery-bed, was carried out to evaluate the antagonistic potential of various rhizobacterial strains, applied as seed treatment on dwarf rice (cv. PR-106) for the mitigation of Meloidogyne graminicola activity during early growth of rice seedling”
e4“these bacteria also helped in promoting seedling growth”
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See all 15 papers →seed treatment · Meloidogyne graminicola · Oryza sativa (rice)Results agree
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- positive
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.