Abstract
Studies were conducted to determine damage potential of Meloidogyne graminicola on the commonly grown rice cv. Sugandh-5 and to devise an effective management strategy. The nematicides were applied through root-dip (200 ppm solution) and soil application of 2 kg ha-1 phorate 10G (25 mg a.i./pot), carbofuran 3G (83.3 mg a.i./pot and 1 L ha-1), carbosulfan 20EC (5µL/pot) and chlorpyriphos 20 EC (6.25 µL/pot) in both nematode infested and non-infested soil with five modes of application viz., root-dip, single soil application (15 days after transplanting), root-dip + one soil application, two soil applications, and root-dip + two soil applications (15 and 30 days). Application of nematicides did not cause any toxicity symptoms on rice plants. In nematode infested soil, terminal and spiral galls developed on the rice roots, and plants suffered 20−31% decrease in the plant growth parameters. Carbofuran and phorate through root-dip plus single soil application provided greatest suppression in galling (16−20%), egg mass production (18−22%) and soil population (27.5−58.2%) of M. graminicola, and subsequently increased all the plant growth variables by 9−19%. Root-dip + two soil applications increased plant growth and suppressed nematodes, but was equal to root dip + one soil application. Root-dip treatment alone with carbosulfan also significantly suppressed root galling (10−12%) and improved the dry weight of roots and shoots (7−10%).
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Claims 11
Claim · model-written summary
Nematicide application did not cause toxicity symptoms on rice plants.
- Taxon
- rice
Oryza sativae0 - Treatment
- nematicidese0
- Outcome
- toxicity symptomse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of nematicides did not cause any toxicity symptoms on rice plants”
Claim · model-written summary
In nematode-infested soil, terminal and spiral galls developed on rice roots.
- Taxon
- riceOryza sativae0
- Organ / stage
- rice rootse0
- Outcome
- terminal and spiral gallse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In nematode infested soil, terminal and spiral galls developed on the rice roots”
Claim · model-written summary
In nematode-infested soil, rice plants suffered a 20-31% decrease in plant growth parameters.
- Taxon
- riceOryza sativae0
- Treatment
- nematode infested soile0
- Outcome
- plant growth parameterse0
- Direction
- decreasee0
- Value
- 20−31%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In nematode infested soil, terminal and spiral galls developed on the rice roots, and plants suffered 20−31% decrease in the plant growth parameters”
Claim · model-written summary
Carbofuran and phorate applied by root-dip plus a single soil application gave the greatest suppression of galling, by 16-20%, in rice infected with M. graminicola.
- Taxon
- riceOryza sativat0
- Treatment
- Carbofuran and phorate through root-dip plus single soil applicatione0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolat0pathogen
- Outcome
- gallinge0
- Direction
- suppressione0
- Value
- 16−20%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carbofuran and phorate through root-dip plus single soil application provided greatest suppression in galling (16−20%)”
t0“Nematicides control rice root-knot, caused by Meloidogyne graminicola”
Claim · model-written summary
Carbofuran and phorate applied by root-dip plus a single soil application greatly suppressed egg mass production of M. graminicola by 18-22%.
- Taxon
- riceOryza sativat0
- Treatment
- Carbofuran and phorate through root-dip plus single soil applicatione0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolat0pathogen
- Outcome
- egg mass productione1
- Direction
- suppressione0
- Value
- 18−22%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carbofuran and phorate through root-dip plus single soil application provided greatest suppression in galling (16−20%)”
e1“egg mass production (18−22%)”
t0“Nematicides control rice root-knot, caused by Meloidogyne graminicola”
Claim · model-written summary
Carbofuran and phorate applied by root-dip plus a single soil application suppressed the soil population of M. graminicola by 27.5-58.2%.
- Taxon
- riceOryza sativat0
- Treatment
- Carbofuran and phorate through root-dip plus single soil applicatione0
- Interactor
- M. graminicolaMeloidogyne graminicolae1pathogen
- Outcome
- soil populatione1
- Direction
- suppressione0
- Value
- 27.5−58.2%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carbofuran and phorate through root-dip plus single soil application provided greatest suppression in galling (16−20%)”
e1“soil population (27.5−58.2%) of M. graminicola”
t0“Nematicides control rice root-knot, caused by Meloidogyne graminicola”
Claim · model-written summary
Carbofuran and phorate by root-dip plus single soil application subsequently increased all rice plant growth variables by 9-19%.
- Taxon
- riceOryza sativat0
- Treatment
- Carbofuran and phorate through root-dip plus single soil applicatione0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolat0pathogen
- Outcome
- plant growth variablese1
- Direction
- increasede1
- Value
- 9−19%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Carbofuran and phorate through root-dip plus single soil application provided greatest suppression in galling (16−20%)”
e1“subsequently increased all the plant growth variables by 9−19%”
t0“Nematicides control rice root-knot, caused by Meloidogyne graminicola”
Claim · model-written summary
Root-dip plus two soil applications increased rice plant growth, but the effect was equal to root-dip plus one soil application.
- Taxon
- riceOryza sativat0
- Treatment
- Root-dip + two soil applicationse0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolat0pathogen
- Outcome
- plant growthe0
- Direction
- increasede0
- Qualifier
- equal to root dip + one soil applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root-dip + two soil applications increased plant growth and suppressed nematodes, but was equal to root dip + one soil application”
t0“Nematicides control rice root-knot, caused by Meloidogyne graminicola”
Claim · model-written summary
Root-dip plus two soil applications suppressed nematodes, but the effect was equal to root-dip plus one soil application.
- Taxon
- riceOryza sativat0
- Treatment
- Root-dip + two soil applicationse0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolat0pathogen
- Outcome
- nematodese0
- Direction
- suppressede0
- Qualifier
- equal to root dip + one soil applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root-dip + two soil applications increased plant growth and suppressed nematodes, but was equal to root dip + one soil application”
t0“Nematicides control rice root-knot, caused by Meloidogyne graminicola”
Claim · model-written summary
Root-dip treatment alone with carbosulfan significantly suppressed root galling by 10-12%.
- Taxon
- riceOryza sativat0
- Treatment
- Root-dip treatment alone with carbosulfane0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolat0pathogen
- Outcome
- root gallinge0
- Direction
- suppressede0
- Value
- 10−12%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root-dip treatment alone with carbosulfan also significantly suppressed root galling (10−12%)”
t0“Nematicides control rice root-knot, caused by Meloidogyne graminicola”
Claim · model-written summary
Root-dip treatment alone with carbosulfan improved the dry weight of roots and shoots by 7-10%.
- Taxon
- riceOryza sativat0
- Treatment
- Root-dip treatment alone with carbosulfane0
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolat0pathogen
- Outcome
- dry weight of roots and shootse1
- Direction
- improvede1
- Value
- 7−10%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root-dip treatment alone with carbosulfan”
e1“improved the dry weight of roots and shoots (7−10%)”
t0“Nematicides control rice root-knot, caused by Meloidogyne graminicola”
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See all 10 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.