Abstract
Bacterial leaf blight is one of the most destructive diseases in rice which leads to yield loss of 20-40%. This study aimed to assess the prevalence of bacterial leaf blight in rice across Andhra Pradesh. A roving survey was conducted during Kharif 2023 in Andhra Pradesh to assess the severity of bacterial leaf blight disease in rice. The percent disease index averages from 25 to 59.6% was recorded. The maximum disease severity was observed in the tillering stage. The maximum percent disease index was observed in Chinta reddy Palem village in Nellore district (59.60%), while the minimum was recorded in Denduluru village in Eluru district (25%). The disease was more severe in the BPT-5204 variety. In spite chemical control, there are chances of development of resistance. There is a need for nanotechnology intervention for management of disease. This study also investigates the antimicrobial activity of copper and silver nanoparticles against Xoo by using paper disc diffusion method under invitro conditions. Silver nanoparticles exhibited the highest anti-microbial activity when compared with copper nanoparticles at 0.1% and 0.2% concentrations, respectively. Further research is needed to explore the field application of nanoparticles and their long-term effects on rice crops.
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Claims 7
Claim · model-written summary
Bacterial leaf blight disease index averaged 25 to 59.6% across surveyed rice locations.
- Taxon
- rice
Oryza sativae1 - Outcome
- percent disease indexe0
- Value
- 25 to 59.6%e0
- Setting
- Andhra Pradeshe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percent disease index averages from 25 to 59.6% was recorded”
e1“bacterial leaf blight disease in rice”
e2“rice across Andhra Pradesh”
Claim · model-written summary
Bacterial blight severity was greatest at rice tillering.
- Taxon
- riceOryza sativae1
- Organ / stage
- tillering stagee0
- Outcome
- disease severitye0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum disease severity was observed in the tillering stage”
e1“bacterial leaf blight disease in rice”
Claim · model-written summary
Chinta reddy Palem had the highest disease index at 59.60%.
- Taxon
- riceOryza sativae1
- Outcome
- percent disease indexe0
- Direction
- maximume0
- Value
- 59.60%e0
- Setting
- Chinta reddy Palem village in Nellore districte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum percent disease index was observed in Chinta reddy Palem village in Nellore district (59.60%)”
e1“bacterial leaf blight disease in rice”
Claim · model-written summary
Denduluru had the lowest disease index at 25%.
- Taxon
- riceOryza sativae2
- Outcome
- percent disease indexe1
- Direction
- minimume0
- Value
- 25%e0
- Setting
- Denduluru village in Eluru districte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the minimum was recorded in Denduluru village in Eluru district (25%)”
e1“maximum percent disease index was observed”
e2“bacterial leaf blight disease in rice”
Claim · model-written summary
Bacterial leaf blight was more severe in BPT-5204.
- Taxon
- riceOryza sativae1
- Material
- BPT-5204e0
- Outcome
- diseasee0
- Direction
- more severee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The disease was more severe in the BPT-5204 variety”
e1“bacterial leaf blight disease in rice”
Claim · model-written summary
Silver nanoparticles showed greater in vitro antimicrobial activity against Xoo than copper nanoparticles at the stated concentrations.
- Taxon
- RiceOryza sativat0
- Treatment
- Silver nanoparticlese0
- Interactor
- Xooe1pathogen
- Outcome
- anti-microbial activitye0
- Direction
- higheste0
- Qualifier
- 0.1% and 0.2% concentrations, respectivelye0
- Comparator
- copper nanoparticlese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silver nanoparticles exhibited the highest anti-microbial activity when compared with copper nanoparticles at 0.1% and 0.2% concentrations, respectively”
e1“activity of copper and silver nanoparticles against Xoo”
t0“Rice”
Claim · model-written summary
The authors call for field research on nanoparticle use and long-term rice effects.
- Taxon
- riceOryza sativae0
- Outcome
- field application of nanoparticles and their long-term effects on rice cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Further research is needed to explore the field application of nanoparticles and their long-term effects on rice crops”
The same questions in other papers
silver nanoparticle · molecular: metabolites · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- negative
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.