Abstract
Antagonistic potential of Pseudomonas fluorescens isolate RRb-11 has been evaluated against bacterial leaf blight (BLB) pathogen of rice in vitro, in vivo, microplot and field tests. RRb-11 isolate mass multiplied in substrates like talc and kaolinite powder and bran of barley, soybean and wheat to prepare suitable bioformulation. The maximum shelf life of P. fluorescens was recorded in talc based bioformulation up to 150 days after storage. In rhizosphere competence study, the root rhizosphere of talc, kaolinite and barley based bioformulation treated plants showed good survivability and competence even up to 90 days after treatment. In field study, the talc based bioformulation was applied and the best results were obtained when talc based bioformulation of P. fluorescens RRb-11 was applied as seed treatment, seedling root dip and soil application in combination which reduced the disease by 92.3 and 88.5% over control in the year 2009 and 2010, respectively. This treatment also produced maximum yield of 3.88 t ha(-1) i.e., 61% greater than control.
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Claims 7
Claim · model-written summary
The talc formulation retained P. fluorescens for up to 150 days.
- Taxon
- rice
Oryza sativat0 - Treatment
- talc based bioformulatione0
- Interactor
- P. fluorescens
.JPG?width=60)
Pseudomonas fluorescense0biocontrol_agent - Outcome
- shelf life of P. fluorescense0
- Direction
- maximume0
- Value
- up to 150 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“The maximum shelf life of P. fluorescens was recorded in talc based bioformulation up to 150 days after storage.”
t0“rice”
Claim · model-written summary
Talc formulation treated rice plants supported rhizosphere survival up to 90 days.
- Taxon
- riceOryza sativat0
- Treatment
- talce0
- Interactor
- Pseudomonas fluorescensPseudomonas fluorescenst0biocontrol_agent
- Outcome
- good survivability and competencee0
- Value
- up to 90 dayse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the root rhizosphere of talc, kaolinite and barley based bioformulation treated plants showed good survivability and competence even up to 90 days after treatment.”
t0“Pseudomonas fluorescens against bacterial leaf blight of rice”
Claim · model-written summary
Kaolinite formulation treated rice plants supported rhizosphere survival up to 90 days.
- Taxon
- riceOryza sativat0
- Treatment
- kaolinitee0
- Interactor
- Pseudomonas fluorescensPseudomonas fluorescenst0biocontrol_agent
- Outcome
- good survivability and competencee0
- Value
- up to 90 dayse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the root rhizosphere of talc, kaolinite and barley based bioformulation treated plants showed good survivability and competence even up to 90 days after treatment.”
t0“Pseudomonas fluorescens against bacterial leaf blight of rice”
Claim · model-written summary
Barley formulation treated rice plants supported rhizosphere survival up to 90 days.
- Taxon
- riceOryza sativat0
- Treatment
- barleye0
- Interactor
- Pseudomonas fluorescensPseudomonas fluorescenst0biocontrol_agent
- Outcome
- good survivability and competencee0
- Value
- up to 90 dayse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the root rhizosphere of talc, kaolinite and barley based bioformulation treated plants showed good survivability and competence even up to 90 days after treatment.”
t0“Pseudomonas fluorescens against bacterial leaf blight of rice”
Claim · model-written summary
Combined P. fluorescens applications reduced rice disease by 92.3% versus control in 2009.
- Taxon
- riceOryza sativat0
- Treatment
- seed treatment, seedling root dip and soil application in combinatione0
- Interactor
- Xanthomonas oryzae pv. oryzae
Xanthomonas oryzae pv. oryzaet0pathogen - Second interactor
- P. fluorescens RRb-11Pseudomonas fluorescense0biocontrol_agent
- Outcome
- the diseasee0
- Direction
- reducede0
- Value
- 92.3e0
- Qualifier
- 2009e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“talc based bioformulation of P. fluorescens RRb-11 was applied as seed treatment, seedling root dip and soil application in combination which reduced the disease by 92.3 and 88.5% over control in the year 2009 and 2010, respectively.”
t0“bacterial leaf blight of rice (Xanthomonas oryzae pv. oryzae)”
Claim · model-written summary
Combined P. fluorescens applications reduced rice disease by 88.5% versus control in 2010.
- Taxon
- riceOryza sativat0
- Treatment
- seed treatment, seedling root dip and soil application in combinatione0
- Interactor
- Xanthomonas oryzae pv. oryzaeXanthomonas oryzae pv. oryzaet0pathogen
- Second interactor
- P. fluorescens RRb-11Pseudomonas fluorescense0biocontrol_agent
- Outcome
- the diseasee0
- Direction
- reducede0
- Value
- 88.5%e0
- Qualifier
- 2010e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“talc based bioformulation of P. fluorescens RRb-11 was applied as seed treatment, seedling root dip and soil application in combination which reduced the disease by 92.3 and 88.5% over control in the year 2009 and 2010, respectively.”
t0“bacterial leaf blight of rice (Xanthomonas oryzae pv. oryzae)”
Claim · model-written summary
The combined treatment gave maximum rice yield of 3.88 t ha(-1), 61% above control.
- Taxon
- riceOryza sativat0
- Treatment
- seed treatment, seedling root dip and soil application in combinatione1
- Interactor
- P. fluorescens RRb-11Pseudomonas fluorescense1biocontrol_agent
- Outcome
- yielde0
- Direction
- greatere0
- Value
- 3.88 t ha(-1)e0
- Qualifier
- 61%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This treatment also produced maximum yield of 3.88 t ha(-1) i.e., 61% greater than control.”
e1“talc based bioformulation of P. fluorescens RRb-11 was applied as seed treatment, seedling root dip and soil application in combination”
t0“rice”
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See all 12 papers →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.