Abstract
This study was planned to assess the efficacy of plant growth promoting rhizobacteria (PGPR) against Meloidogyne incognita infection on roots of tomato (Lycopersicon esculentum Mill.) in the green house at 30 + 4 o C. Fifteen-days-old seedlings of tomato cultivar Money Maker were planted singly in 15-cm-diam pots filled with sterilized sandy soil. Two days after transplanting, 20-ml of 5% sugar solution containing 10 7 CFU/ml each of Bacillus spp., Azotobacter spp., Pseudomonas putida and P. fluorescens, were pipetted into three 3-cm deep holes surrounding the root zone of each plant. Five days after the application of PGPR, freshly hatched 2000 J2 were applied at root zone. The experiment consisted of seven treatments; each with seven replicates and arranged in CRD. Pots with nematodes, without nematodes, and PGPR were kept as control for comparison. Sixty days after inoculations, data of plant growth parameters such as plant height, fresh and dry root and shoot weight and nematode reproduction in term of egg masses per root system, galls per root system, J2/ one gm of root and females per root system were recorded. The plants treated with P. fluorescens significantly (P = 0.05) suppressed females per root system (40.52%), J2/one gm of root (39.80%), galls per root system (41.50%) and egg masses per root system (43.23%) resulting in improved growth over control plants. The treatments having P. putida, Bacillus spp. and combination of PGPR showed intermediary effects on both nematode reproduction and plant growth. Azobacter spp. was least effective in suppressing only 28.10%, 15.87%, 29.38%, 29.29% females per root system, J2 per gm of root, galls per root system and egg masses per root system, respectively.
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Claims 12
Claim · model-written summary
P. fluorescens suppressed females per root system by 40.52%.
- Taxon
- plantsViridiplantaee0
- Treatment
- treated with P. fluorescense0
- Interactor
- Meloidogyne incognita
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogyne incognitat0pathogen - Second interactor
- P. fluorescens
.JPG?width=60)
Pseudomonas fluorescense0biocontrol_agent - Outcome
- females per root systeme0
- Direction
- suppressede0
- Value
- 40.52%e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
.JPG?width=500)
Verbatim
e0“The plants treated with P. fluorescens significantly (P = 0.05) suppressed females per root system (40.52%), J2/one gm of root (39.80%), galls per root system (41.50%) and egg masses per root system (43.23%) resulting in improved growth over control plants.”
t0“Meloidogyne incognita”
Claim · model-written summary
P. fluorescens suppressed J2 per gram of root by 39.80%.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- treated with P. fluorescense0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pathogen
- Second interactor
- P. fluorescensPseudomonas fluorescense0biocontrol_agent
- Outcome
- J2/one gm of roote0
- Direction
- suppressede0
- Value
- 39.80%e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants treated with P. fluorescens significantly (P = 0.05) suppressed females per root system (40.52%), J2/one gm of root (39.80%), galls per root system (41.50%) and egg masses per root system (43.23%) resulting in improved growth over control plants.”
t0“Meloidogyne incognita by Plant Growth Promoting Rhizobacteria on Tomato”
Claim · model-written summary
P. fluorescens suppressed galls per root system by 41.50%.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- treated with P. fluorescense0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pathogen
- Second interactor
- P. fluorescensPseudomonas fluorescense0biocontrol_agent
- Outcome
- galls per root systeme0
- Direction
- suppressede0
- Value
- 41.50%e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants treated with P. fluorescens significantly (P = 0.05) suppressed females per root system (40.52%), J2/one gm of root (39.80%), galls per root system (41.50%) and egg masses per root system (43.23%) resulting in improved growth over control plants.”
t0“Meloidogyne incognita by Plant Growth Promoting Rhizobacteria on Tomato”
Claim · model-written summary
P. fluorescens suppressed egg masses per root system by 43.23%.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- treated with P. fluorescense0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pathogen
- Second interactor
- P. fluorescensPseudomonas fluorescense0biocontrol_agent
- Outcome
- egg masses per root systeme0
- Direction
- suppressede0
- Value
- 43.23%e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants treated with P. fluorescens significantly (P = 0.05) suppressed females per root system (40.52%), J2/one gm of root (39.80%), galls per root system (41.50%) and egg masses per root system (43.23%) resulting in improved growth over control plants.”
t0“Meloidogyne incognita by Plant Growth Promoting Rhizobacteria on Tomato”
Claim · model-written summary
P. fluorescens improved tomato growth over controls.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- P. fluorescense0
- Interactor
- P. fluorescensPseudomonas fluorescense0biocontrol_agent
- Outcome
- growthe0
- Direction
- improvede0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants treated with P. fluorescens significantly (P = 0.05) suppressed females per root system (40.52%), J2/one gm of root (39.80%), galls per root system (41.50%) and egg masses per root system (43.23%) resulting in improved growth over control plants.”
t0“Meloidogyne incognita by Plant Growth Promoting Rhizobacteria on Tomato”
Claim · model-written summary
P. putida had intermediate effects on nematode reproduction and plant growth.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- P. putidae0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pathogen
- Second interactor
- P. putida
Pseudomonas putidae0biocontrol_agent - Outcome
- nematode reproduction and plant growthe0
- Direction
- intermediarye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments having P. putida, Bacillus spp. and combination of PGPR showed intermediary effects on both nematode reproduction and plant growth.”
t0“Meloidogyne incognita by Plant Growth Promoting Rhizobacteria on Tomato”
Claim · model-written summary
Bacillus spp. had intermediate effects on nematode reproduction and plant growth.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Bacillus spp.e0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pathogen
- Second interactor
- Bacillus spp.e0biocontrol_agent
- Outcome
- nematode reproduction and plant growthe0
- Direction
- intermediarye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments having P. putida, Bacillus spp. and combination of PGPR showed intermediary effects on both nematode reproduction and plant growth.”
t0“Meloidogyne incognita by Plant Growth Promoting Rhizobacteria on Tomato”
Claim · model-written summary
Combined PGPR had intermediate effects on nematode reproduction and plant growth.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- combination of PGPRe0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pathogen
- Outcome
- nematode reproduction and plant growthe0
- Direction
- intermediarye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments having P. putida, Bacillus spp. and combination of PGPR showed intermediary effects on both nematode reproduction and plant growth.”
t0“Meloidogyne incognita by Plant Growth Promoting Rhizobacteria on Tomato”
Claim · model-written summary
Azobacter spp. suppressed females per root system by 28.10%.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Azobacter spp.e0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pathogen
- Second interactor
- Azobacter spp.e0biocontrol_agent
- Outcome
- females per root systeme0
- Direction
- suppressinge0
- Value
- 28.10%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azobacter spp. was least effective in suppressing only 28.10%, 15.87%, 29.38%, 29.29% females per root system, J2 per gm of root, galls per root system and egg masses per root system, respectively.”
t0“Meloidogyne incognita by Plant Growth Promoting Rhizobacteria on Tomato”
Claim · model-written summary
Azobacter spp. suppressed J2 per gram of root by 15.87%.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Azobacter spp.e0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pathogen
- Second interactor
- Azobacter spp.e0biocontrol_agent
- Outcome
- J2 per gm of roote0
- Direction
- suppressinge0
- Value
- 15.87%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azobacter spp. was least effective in suppressing only 28.10%, 15.87%, 29.38%, 29.29% females per root system, J2 per gm of root, galls per root system and egg masses per root system, respectively.”
t0“Meloidogyne incognita by Plant Growth Promoting Rhizobacteria on Tomato”
Claim · model-written summary
Azobacter spp. suppressed galls per root system by 29.38%.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Azobacter spp.e0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pathogen
- Second interactor
- Azobacter spp.e0biocontrol_agent
- Outcome
- galls per root systeme0
- Direction
- suppressinge0
- Value
- 29.38%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azobacter spp. was least effective in suppressing only 28.10%, 15.87%, 29.38%, 29.29% females per root system, J2 per gm of root, galls per root system and egg masses per root system, respectively.”
t0“Meloidogyne incognita by Plant Growth Promoting Rhizobacteria on Tomato”
Claim · model-written summary
Azobacter spp. suppressed egg masses per root system by 29.29%.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Azobacter spp.e0
- Interactor
- Meloidogyne incognitaMeloidogyne incognitat0pathogen
- Second interactor
- Azobacter spp.e0biocontrol_agent
- Outcome
- egg masses per root systeme0
- Direction
- suppressinge0
- Value
- 29.29%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Azobacter spp. was least effective in suppressing only 28.10%, 15.87%, 29.38%, 29.29% females per root system, J2 per gm of root, galls per root system and egg masses per root system, respectively.”
t0“Meloidogyne incognita by Plant Growth Promoting Rhizobacteria on Tomato”
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