Abstract
Leaf scald caused by Monographella albescens reduces the photosynthetic area, causing yield losses in rice. This study investigated the efficacy of the rhizobacteria Burkholderia pyrrocinia (BRM‐32113) and Pseudomonas fluorescens (BRM‐32111), combined with silicon (Si) fertilization, to reduce lesion size and the area under the disease progress curve (AUDPC), as well as to minimize the negative effects on gas exchange, chlorophyll a fluorescence, chlorophyll content and the activity of oxidative stress enzymes. The experiment used a completely randomized design with four replications and seven treatments. Compared with plants only fertilized with Si, plants fertilized with Si and treated with BRM‐32113 showed reductions of 22% in scald lesion expansion and 37% in AUDPC, a 27% increase in the rate of CO 2 assimilation ( A ), a 33% decrease in the internal CO 2 concentration ( C i ), and a 40% increase in ascorbate peroxidase activity. It was therefore concluded that the combination of BRM‐32113 with Si fertilization reduces the severity of leaf scald, protecting the photosynthetic apparatus, thus representing a sustainable method of reducing the loss of income caused by leaf scald in rice.
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Claims 5
Claim · model-written summary
BRM‐32113 plus Si reduced scald lesion expansion by 22% versus Si alone.
- Taxon
- rice
Oryza sativat0 - Treatment
- fertilized with Si and treated with BRM‐32113e0
- Outcome
- scald lesion expansione0
- Direction
- reductionse0
- Value
- 22%e0
- Comparator
- plants only fertilized with Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with plants only fertilized with Si, plants fertilized with Si and treated with BRM‐32113 showed reductions of 22% in scald lesion expansion”
t0“rice”
Claim · model-written summary
BRM‐32113 plus Si reduced AUDPC by 37% versus Si alone.
- Taxon
- riceOryza sativat0
- Treatment
- fertilized with Si and treated with BRM‐32113e0
- Outcome
- AUDPCe0
- Direction
- reductionse0
- Value
- 37%e0
- Comparator
- plants only fertilized with Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with plants only fertilized with Si, plants fertilized with Si and treated with BRM‐32113 showed reductions of 22% in scald lesion expansion and 37% in AUDPC”
t0“rice”
Claim · model-written summary
BRM‐32113 plus Si increased CO 2 assimilation rate by 27%.
- Taxon
- riceOryza sativat0
- Treatment
- fertilized with Si and treated with BRM‐32113e0
- Outcome
- rate of CO 2 assimilatione0
- Direction
- increasee0
- Value
- 27%e0
- Comparator
- plants only fertilized with Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with plants only fertilized with Si, plants fertilized with Si and treated with BRM‐32113 showed reductions of 22% in scald lesion expansion and 37% in AUDPC, a 27% increase in the rate of CO 2 assimilation ( A )”
t0“rice”
Claim · model-written summary
BRM‐32113 plus Si decreased internal CO 2 concentration by 33%.
- Taxon
- riceOryza sativat0
- Outcome
- internal CO 2 concentratione0
- Direction
- decreasee0
- Value
- 33%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a 33% decrease in the internal CO 2 concentration ( C i )”
t0“rice”
Claim · model-written summary
BRM‐32113 plus Si increased ascorbate peroxidase activity by 40%.
- Taxon
- riceOryza sativat0
- Outcome
- ascorbate peroxidase activitye0
- Direction
- increasee0
- Value
- 40%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a 40% increase in ascorbate peroxidase activity”
t0“rice”
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