Abstract
Background: Rice root knot nematode (M. graminicola) is considered as a major threat in basmati rice. The main characteristic symptoms produced by M. graminicola are terminal hook shaped or spiral galls on the roots and other symptoms of damage include patches of stunted and yellowish plants. Methods: A field experiment was conducted in Kharif season of 2018 and 2019 at Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut (UP) to test the efficacy of bio-agents against the root knot nematode. In this experiment, three bio-agents (Bacillus pumilus, Bacillus subtilis and Pseudomonas florescence) and one chemical (carbofuran) were tested in randomized block design with three replications. Result: It was observed that tested bio-agents and chemical significantly reduced the galls per plant in comparison to the control. At 30 and 60 day after transplanting, minimum (12.7 and 10.0 galls/plant) and (20.9 and 18.8 galls/plant) were recorded with Bacillus subtilis @ 20g/ M2 (2 x 108 cfu/g) during 2018 and 2019, respectively. In case of control, 52.7 and 62.5 galls/plant were recorded at 60 days after transplanting during both years. All the tested bio-agents were found effective in reducing the nematode population, increase the growth parameters and yield of basmati rice.
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Claims 6
Claim · model-written summary
Tested bio-agents and the chemical significantly reduced galls per basmati rice plant compared with the control.
Verbatim
e0“Rice root knot nematode (M. graminicola) is considered as a major threat in basmati rice”
e1“tested bio-agents and chemical significantly reduced the galls per plant in comparison to the control”
Claim · model-written summary
Bacillus subtilis at 20 g/m2 gave the minimum galls per plant at 30 days after transplanting (12.7 and 10.0 galls/plant in 2018 and 2019).
- Taxon
- basmati ricee0
- Treatment
- Bacillus subtilis @ 20g/ M2 (2 x 108 cfu/g)e2
- Interactor
- M. graminicolaMeloidogyne graminicolae0pest
- Second interactor
- Bacillus subtilis
Bacillus subtilise2biocontrol_agent - Outcome
- galls/plante2
- Direction
- minimume2
- Value
- 12.7 and 10.0 galls/plante2
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice root knot nematode (M. graminicola) is considered as a major threat in basmati rice”
e1“tested bio-agents and chemical significantly reduced the galls per plant in comparison to the control”
e2“At 30 and 60 day after transplanting, minimum (12.7 and 10.0 galls/plant) and (20.9 and 18.8 galls/plant) were recorded with Bacillus subtilis @ 20g/ M2 (2 x 108 cfu/g)”
Claim · model-written summary
Bacillus subtilis at 20 g/m2 gave the minimum galls per plant at 60 days after transplanting (20.9 and 18.8 galls/plant in 2018 and 2019).
- Taxon
- basmati ricee0
- Treatment
- Bacillus subtilis @ 20g/ M2 (2 x 108 cfu/g)e2
- Interactor
- M. graminicolaMeloidogyne graminicolae0pest
- Second interactor
- Bacillus subtilisBacillus subtilise2biocontrol_agent
- Outcome
- galls/plante2
- Direction
- minimume2
- Value
- 20.9 and 18.8 galls/plante2
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice root knot nematode (M. graminicola) is considered as a major threat in basmati rice”
e1“tested bio-agents and chemical significantly reduced the galls per plant in comparison to the control”
e2“At 30 and 60 day after transplanting, minimum (12.7 and 10.0 galls/plant) and (20.9 and 18.8 galls/plant) were recorded with Bacillus subtilis @ 20g/ M2 (2 x 108 cfu/g)”
Claim · model-written summary
In the control, basmati rice had 52.7 and 62.5 galls per plant at 60 days after transplanting.
Verbatim
e0“Rice root knot nematode (M. graminicola) is considered as a major threat in basmati rice”
e3“In case of control, 52.7 and 62.5 galls/plant were recorded at 60 days after transplanting during both years”
Claim · model-written summary
All tested bio-agents reduced the nematode population in basmati rice.
Not reportedComparator
Verbatim
e0“Rice root knot nematode (M. graminicola) is considered as a major threat in basmati rice”
e4“All the tested bio-agents were found effective in reducing the nematode population, increase the growth parameters and yield of basmati rice”
Claim · model-written summary
All tested bio-agents increased growth parameters and yield of basmati rice.
- Taxon
- basmati ricee0
- Treatment
- tested bio-agentse4
- Outcome
- growth parameters and yielde4
- Direction
- increasee4
Not reportedComparator
Verbatim
e0“Rice root knot nematode (M. graminicola) is considered as a major threat in basmati rice”
e4“All the tested bio-agents were found effective in reducing the nematode population, increase the growth parameters and yield of basmati rice”
The same questions in other papers
biocontrol · yield · Oryza sativa (rice)Positive and negative results
23 papers in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- positive
22 papers more in this group
See all 26 papers →biocontrol · Meloidogyne graminicola · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- positive
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.