Abstract
Dry direct-seeded rice is an alternative cropping technique that should require less water and labor than the classical method of transplanted-flooded rice. Weed competition is the major biological constraint in this resource-conserving production technique reducing the crop yield by 30–80%. This study evaluated the effects of different seed coating treatments on the performance of dry direct seeded rice under field conditions. The seed coating treatments used were preliminarily optimized under lab conditions. The rice seeds were coated with sodium lauryl sulphate (20:1), calcium peroxide (CaO2) (20:6), alginate (20:6), and plant growth promoting bacteria Bacillus sp. KS-54 (20:6 g:mL) on a dry weight basis. Among treatments, seed coating with CaO2 resulted in higher field emergence (85%) and suppressed the fresh and dry biomass of weeds at 15 and 35 days after sowing which subsequently improved the seedling growth of direct seeded rice followed by other treatments and the control. Rice seeds coated with CaO2 and Bacillus sp. KS-54 were effective at enhancing morphological, yield and yield related attributes as compared to other treatments and the control under field conditions. The better morphological attributes and yield of rice plants raised from seeds coated with CaO2 and Bacillus sp. KS-54 were associated with higher concentrations of reducing sugars and enhanced antioxidant enzymes activities.
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Claims 6
Claim · model-written summary
CaO2 coating higher field emergence.
- Taxon
- rice
Oryza sativae0 - Treatment
- seed coating with CaO2e0
- Outcome
- field emergencee0
- Direction
- highere0
- Value
- 85%e0
- Comparator
- other treatments and the controle0
Not reportedInteractorInteractor role
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among treatments, seed coating with CaO2 resulted in higher field emergence (85%) and suppressed the fresh and dry biomass of weeds at 15 and 35 days after sowing which subsequently improved the seedling growth of direct seeded rice followed by other treatments and the control.”
Claim · model-written summary
CaO2 coating suppressed fresh and dry biomass of weeds.
- Taxon
- riceOryza sativae0
- Treatment
- seed coating with CaO2e0
- Interactor
- weedse0weed
- Outcome
- fresh and dry biomass of weedse0
- Direction
- suppressede0
- Comparator
- other treatments and the controle0
Not reportedValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among treatments, seed coating with CaO2 resulted in higher field emergence (85%) and suppressed the fresh and dry biomass of weeds at 15 and 35 days after sowing which subsequently improved the seedling growth of direct seeded rice followed by other treatments and the control.”
Claim · model-written summary
CaO2 coating improved seedling growth.
- Taxon
- riceOryza sativae0
- Treatment
- seed coating with CaO2e0
- Outcome
- seedling growthe0
- Direction
- improvede0
- Comparator
- other treatments and the controle0
Not reportedInteractorInteractor roleValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among treatments, seed coating with CaO2 resulted in higher field emergence (85%) and suppressed the fresh and dry biomass of weeds at 15 and 35 days after sowing which subsequently improved the seedling growth of direct seeded rice followed by other treatments and the control.”
Claim · model-written summary
CaO2 coating enhanced rice morphology and yield.
- Taxon
- riceOryza sativae0
- Treatment
- CaO2e0
- Outcome
- morphological, yield and yield related attributese0
- Direction
- enhancinge0
- Comparator
- other treatments and the controle0
Not reportedInteractorInteractor role
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice seeds coated with CaO2 and Bacillus sp. KS-54 were effective at enhancing morphological, yield and yield related attributes as compared to other treatments and the control under field conditions.”
Claim · model-written summary
Bacillus sp. KS-54 coating enhanced rice morphology and yield.
- Taxon
- riceOryza sativae0
- Treatment
- Bacillus sp. KS-54e0
- Interactor
- Bacillus sp. KS-54e0symbiont
- Outcome
- morphological, yield and yield related attributese0
- Direction
- enhancinge0
- Comparator
- other treatments and the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice seeds coated with CaO2 and Bacillus sp. KS-54 were effective at enhancing morphological, yield and yield related attributes as compared to other treatments and the control under field conditions.”
Claim · model-written summary
Better rice morphology and yield were associated with higher reducing sugars and antioxidant activity.
- Taxon
- riceOryza sativae0
- Compound
- reducing sugarse0
- Outcome
- morphological attributes and yielde0
- Direction
- bettere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The better morphological attributes and yield of rice plants raised from seeds coated with CaO2 and Bacillus sp. KS-54 were associated with higher concentrations of reducing sugars and enhanced antioxidant enzymes activities.”
The same questions in other papers
seed treatment · weed · Oryza sativa (rice)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
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229 papers in the same direction as this paper · 15 in the opposite direction
- positive
- positive
- positive
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See all 245 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.