Abstract
The brown planthopper (Nilaparvata lugens (Stål)) is a major pest of rice, causing severe yield losses and overcoming many conventional resistance sources. Silicon has emerged as a promising supplementary defense factor that strengthens plant tissues and activates biochemical defense mechanisms. Exploring silicon-augmented resistance offers an eco-friendly strategy to enhance rice resilience and reduce reliance on chemical pesticides. A replicated field trial was conducted at the Research Farm, College of Agriculture, Bhawanipatna, Odisha University of Agriculture and Technology (OUAT), Odisha, to study the impact of varietal resistance and the foliar application of silicon (Si), as well as their interaction effects on brown planthopper (BPH) during the kharif crop season of 2023. Ten treatment combinations were used during the trial, including 2 rice cultivars (Lalat and TN1) and 4 Si doses: sodium silicate (2 g mL-1), calcium silicate (2 g mL-1), nano sodium silicate (200 m gL-1) and an untreated check. When compared to the susceptible check, TN1, the resistant rice cultivar Lalat consistently showed a lower number of BPH and nano-Si formulations outperformed non-nano Si compounds in reducing the BPH population. Si-treated Lalat cultivars consistently showed lower BPH population, regardless of the Si formulations used. This suggests that Si application and host plant resistance are compatible. The additive effect of Si further increases resistance in tested rice cultivars and the 2 can be successfully combined for long-term pest management in the rice ecosystem. Plots treated with Si and the Lalat cultivar showed a favorable prey-predator ratio, indicating that the Lalat variety is less detrimental to predators and supports their abundance. Grain yields were higher in the Lalat rice cultivars treated with nano-sodium silicate (4883 kg ha-1) and nano-calcium silicate (4617 kg ha-1).
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Claims 10
Claim · model-written summary
The resistant cultivar Lalat showed a lower number of brown planthopper than the susceptible check TN1.
- Taxon
- rice
Oryza sativat0 - Material
- Lalate0
- Interactor
- brown planthopper
Nilaparvata lugenst0pest - Outcome
- number of BPHe0
- Direction
- lowere0
- Qualifier
- consistentlye0
- Comparator
- TN1e0
- Setting
- Research Farm, College of Agriculture, Bhawanipatna, Odishae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice against brown planthopper”
e0“When compared to the susceptible check, TN1, the resistant rice cultivar Lalat consistently showed a lower number of BPH”
e2“A replicated field trial was conducted at the Research Farm, College of Agriculture, Bhawanipatna, Odisha”
Claim · model-written summary
Nano-Si formulations outperformed non-nano Si compounds in reducing the brown planthopper population.
- Taxon
- riceOryza sativat0
- Treatment
- nano-Si formulationse1
- Interactor
- brown planthopperNilaparvata lugenst0pest
- Outcome
- BPH populatione1
- Direction
- outperformede1
- Comparator
- non-nano Si compoundse1
- Setting
- Research Farm, College of Agriculture, Bhawanipatna, Odishae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice against brown planthopper”
e1“nano-Si formulations outperformed non-nano Si compounds in reducing the BPH population”
e2“A replicated field trial was conducted at the Research Farm, College of Agriculture, Bhawanipatna, Odisha”
Claim · model-written summary
Si-treated Lalat cultivars consistently showed a lower brown planthopper population, regardless of the Si formulation.
- Taxon
- riceOryza sativat0
- Material
- Lalate3
- Treatment
- Si-treatede3
- Interactor
- brown planthopperNilaparvata lugenst0pest
- Outcome
- BPH populatione3
- Direction
- lowere3
- Setting
- Research Farm, College of Agriculture, Bhawanipatna, Odishae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice against brown planthopper”
e2“A replicated field trial was conducted at the Research Farm, College of Agriculture, Bhawanipatna, Odisha”
e3“Si-treated Lalat cultivars consistently showed lower BPH population, regardless of the Si formulations used”
Claim · model-written summary
Silicon application and host plant resistance are compatible in rice.
- Taxon
- riceOryza sativat0
- Outcome
- Si application and host plant resistancee4
- Setting
- Research Farm, College of Agriculture, Bhawanipatna, Odishae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice against brown planthopper”
e2“A replicated field trial was conducted at the Research Farm, College of Agriculture, Bhawanipatna, Odisha”
e4“This suggests that Si application and host plant resistance are compatible”
Claim · model-written summary
The additive effect of silicon further increases resistance in tested rice cultivars.
- Taxon
- riceOryza sativae5
- Treatment
- Sie5
- Outcome
- resistancee5
- Direction
- further increasese5
- Setting
- Research Farm, College of Agriculture, Bhawanipatna, Odishae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice against brown planthopper”
e2“A replicated field trial was conducted at the Research Farm, College of Agriculture, Bhawanipatna, Odisha”
e5“The additive effect of Si further increases resistance in tested rice cultivars”
Claim · model-written summary
Silicon and cultivar resistance can be successfully combined for long-term pest management in rice.
- Taxon
- riceOryza sativae6
- Outcome
- long-term pest managemente6
- Setting
- Research Farm, College of Agriculture, Bhawanipatna, Odishae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice against brown planthopper”
e2“A replicated field trial was conducted at the Research Farm, College of Agriculture, Bhawanipatna, Odisha”
e6“the 2 can be successfully combined for long-term pest management in the rice ecosystem”
Claim · model-written summary
Plots treated with Si and the Lalat cultivar showed a favorable prey-predator ratio.
- Taxon
- riceOryza sativat0
- Material
- Lalate7
- Treatment
- Sie7
- Outcome
- prey-predator ratioe7
- Setting
- Research Farm, College of Agriculture, Bhawanipatna, Odishae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice against brown planthopper”
e2“A replicated field trial was conducted at the Research Farm, College of Agriculture, Bhawanipatna, Odisha”
e7“Plots treated with Si and the Lalat cultivar showed a favorable prey-predator ratio, indicating that the Lalat variety is less detrimental to predators and supports their abundance. Grain yields were higher in the Lalat rice cultivars treated with nano-sodium silicate (4883 kg ha-1) and nano-calcium silicate (4617 kg ha-1)”
Claim · model-written summary
The Lalat variety is less detrimental to predators and supports their abundance.
- Taxon
- riceOryza sativat0
- Material
- Lalate7
- Interactor
- predatorse7biocontrol_agent
- Outcome
- less detrimental to predatorse7
- Setting
- Research Farm, College of Agriculture, Bhawanipatna, Odishae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice against brown planthopper”
e2“A replicated field trial was conducted at the Research Farm, College of Agriculture, Bhawanipatna, Odisha”
e7“Plots treated with Si and the Lalat cultivar showed a favorable prey-predator ratio, indicating that the Lalat variety is less detrimental to predators and supports their abundance. Grain yields were higher in the Lalat rice cultivars treated with nano-sodium silicate (4883 kg ha-1) and nano-calcium silicate (4617 kg ha-1)”
Claim · model-written summary
Grain yield was higher in Lalat treated with nano-sodium silicate (4883 kg ha-1).
- Taxon
- riceOryza sativae7
- Material
- Lalate7
- Treatment
- nano-sodium silicatee7
- Outcome
- Grain yieldse7
- Direction
- highere7
- Value
- 4883 kg ha-1e7
- Setting
- Research Farm, College of Agriculture, Bhawanipatna, Odishae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice against brown planthopper”
e2“A replicated field trial was conducted at the Research Farm, College of Agriculture, Bhawanipatna, Odisha”
e7“Plots treated with Si and the Lalat cultivar showed a favorable prey-predator ratio, indicating that the Lalat variety is less detrimental to predators and supports their abundance. Grain yields were higher in the Lalat rice cultivars treated with nano-sodium silicate (4883 kg ha-1) and nano-calcium silicate (4617 kg ha-1)”
Claim · model-written summary
Grain yield was higher in Lalat treated with nano-calcium silicate (4617 kg ha-1).
- Taxon
- riceOryza sativae7
- Material
- Lalate7
- Treatment
- nano-calcium silicatee7
- Outcome
- Grain yieldse7
- Direction
- highere7
- Value
- 4617 kg ha-1e7
- Setting
- Research Farm, College of Agriculture, Bhawanipatna, Odishae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in rice against brown planthopper”
e2“A replicated field trial was conducted at the Research Farm, College of Agriculture, Bhawanipatna, Odisha”
e7“Plots treated with Si and the Lalat cultivar showed a favorable prey-predator ratio, indicating that the Lalat variety is less detrimental to predators and supports their abundance. Grain yields were higher in the Lalat rice cultivars treated with nano-sodium silicate (4883 kg ha-1) and nano-calcium silicate (4617 kg ha-1)”
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