Abstract
ABSTRACT The research objectives were to evaluate biological agent treatments in controlling bacterial leaf blight (BLB) and increasing plant growth and seed production of rice. The experiment was conducted in the greenhouse and field using the same experimental design (randomized block design with two factors) and three replications. The first factor was seed treatments, i.e. negative control, positive control, streptomycin sulphate 0.2%, Pseudomonas diminuta + Bacillus subtilis, matriconditioning + streptomycin sulphate 0.2%, and matriconditioning + P. diminuta + B. subtilis. Spraying plants (second factor): untreated control, streptomycin sulphate 0.2%, biological agent F112, biological agent F198, and biological agent F57. In the greenhouse, matriconditioning + P. diminuta + B. subtilis improved seed germination, plant height, and plant dry weight. Spraying plants with biological agent F112 increased plant dry weight. Meanwhile, matriconditioning + P. diminuta + B. subtilis followed by spraying plants with biological agent F112 reduced the BLB severity. In the field, matriconditioning + P. diminuta + B. subtilis improved seedling dry weight. Matriconditioning + P. diminuta + B. subtilis and spraying plants with biological agents F112 controlled BLB and increased plant growth. However, all treatments were not able to increase healthy seed production. Keywords: matriconditioning, seed treatment, phyllosphere biological agents, Xanthomonas oryzae pv. oryzae
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Claims 7
Claim · model-written summary
Combined seed matriconditioning and bacteria improved greenhouse germination, height and dry weight.
- Taxon
- rice
Oryza sativae1 - Treatment
- matriconditioning + P. diminuta + B. subtilise0
- Interactor
- P. diminutaBrevundimonas diminutae0symbiont
- Second interactor
- B. subtilis
Bacillus subtilise0symbiont - Outcome
- seed germination, plant height, and plant dry weighte0
- Direction
- improvede0
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the greenhouse, matriconditioning + P. diminuta + B. subtilis improved seed germination, plant height, and plant dry weight.”
e1“seed production of rice”
Claim · model-written summary
F112 spray increased greenhouse plant dry weight.
- Taxon
- riceOryza sativae1
- Treatment
- Spraying plants with biological agent F112e0
- Interactor
- biological agent F112e0biocontrol_agent
- Outcome
- plant dry weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying plants with biological agent F112 increased plant dry weight.”
e1“seed production of rice”
Claim · model-written summary
Combined seed treatment and F112 spray reduced leaf blight severity.
- Taxon
- riceOryza sativae1
- Treatment
- matriconditioning + P. diminuta + B. subtilis followed by spraying plants with biological agent F112e0
- Interactor
- P. diminutaBrevundimonas diminutae0biocontrol_agent
- Second interactor
- B. subtilisBacillus subtilise0biocontrol_agent
- Outcome
- BLB severitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“matriconditioning + P. diminuta + B. subtilis followed by spraying plants with biological agent F112 reduced the BLB severity.”
e1“seed production of rice”
Claim · model-written summary
Combined matriconditioning and bacteria improved field seedling dry weight.
- Taxon
- riceOryza sativae1
- Treatment
- matriconditioning + P. diminuta + B. subtilise0
- Interactor
- P. diminutaBrevundimonas diminutae0symbiont
- Second interactor
- B. subtilisBacillus subtilise0symbiont
- Outcome
- seedling dry weighte0
- Direction
- improvede0
- Setting
- fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the field, matriconditioning + P. diminuta + B. subtilis improved seedling dry weight.”
e1“seed production of rice”
Claim · model-written summary
Seed biological treatment with F112 spray controlled field leaf blight.
- Taxon
- riceOryza sativae1
- Treatment
- Matriconditioning + P. diminuta + B. subtilis and spraying plants with biological agents F112e0
- Interactor
- P. diminutaBrevundimonas diminutae0biocontrol_agent
- Second interactor
- B. subtilisBacillus subtilise0biocontrol_agent
- Outcome
- BLBe0
- Direction
- controllede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Matriconditioning + P. diminuta + B. subtilis and spraying plants with biological agents F112 controlled BLB and increased plant growth.”
e1“seed production of rice”
Claim · model-written summary
The biological treatment combination increased field plant growth.
- Taxon
- riceOryza sativae1
- Treatment
- Matriconditioning + P. diminuta + B. subtilis and spraying plants with biological agents F112e0
- Interactor
- P. diminutaBrevundimonas diminutae0symbiont
- Second interactor
- B. subtilisBacillus subtilise0symbiont
- Outcome
- plant growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Matriconditioning + P. diminuta + B. subtilis and spraying plants with biological agents F112 controlled BLB and increased plant growth.”
e1“seed production of rice”
Claim · model-written summary
None of the treatments increased healthy seed production.
- Taxon
- riceOryza sativae1
- Treatment
- all treatmentse0
- Outcome
- healthy seed productione0
- Direction
- not able to increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all treatments were not able to increase healthy seed production.”
e1“seed production of rice”
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