Abstract
A screen house experiment was conducted during kharif season, 2020-21 to know the effect of organic amendments and bio-agents (alone and in combination) in comparison with chemical on the population of rice root-knot nematode (Meloidogyne graminicola) in rice. Nursery was grown in 5 kg soil capacity earthen pan filled with infested soil having initial nematode population 285 J2/200 cc soil. Seeds of the rice (Variety- Pusa 1121) were soaked in tap water for 24 h and the sprouted seeds were sown in pots. Hundred seeds of rice were sown in each pot and each treatment was replicated four times. Organic amendments (neem cake and FYM) and bio-agents (Pseudomonas fluorescens, Purpureocillium lilacinum and Trichoderma viride) were added 10 days before sowing. Weighted amount of bio-agents was mixed in neem cake and FYM for enrichment with 7-10 days waiting period. Carbofuran (Furadan 3G) was added at time of sowing. The earthen pots without organic amendments, bio-agents and chemical were treated as control. Observations on plant growth parameters (seedling length in cm fresh and dry seedling weight in g) and nematode multiplication (number of galls/20 seedling, number of eggs/20 seedling and final nematode population in the soil/200 cc soil) were made at transplanting time. The plant parameters were maximum and significantly highest in treated nursery (neem cake @ 50 g/pot + Pseudomonas fluorescens @ 50 g/pot) under screen house conditions. Nematode reproduction and multiplication parameters such as number of galls/seedling, number of eggs/seedling and final nematode population were significantly reduced in neem cake @ 50 g/pot + Pseudomonas fluorescens @ 50 g/pot.
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Claims 2
Claim · model-written summary
In the screen house, the neem cake plus Pseudomonas fluorescens nursery gave the maximum and significantly highest rice plant parameters.
- Taxon
- rice
Oryza sativae2 - Material
- Pusa 1121e2
- Treatment
- neem cake @ 50 g/pot + Pseudomonas fluorescens @ 50 g/pote4
- Outcome
- plant parameterse4
- Direction
- maximume4
- Comparator
- earthen pots without organic amendments, bio-agents and chemicale3
- Setting
- screen house conditionse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Seeds of the rice (Variety- Pusa 1121)”
e3“The earthen pots without organic amendments, bio-agents and chemical were treated as control”
e4“The plant parameters were maximum and significantly highest in treated nursery (neem cake @ 50 g/pot + Pseudomonas fluorescens @ 50 g/pot) under screen house conditions”
Claim · model-written summary
Neem cake plus Pseudomonas fluorescens significantly reduced galls, eggs and final population of Meloidogyne graminicola on rice.
- Taxon
- riceOryza sativae1
- Treatment
- neem cake @ 50 g/pot + Pseudomonas fluorescens @ 50 g/pote5
- Interactor
- Meloidogyne graminicolaMeloidogyne graminicolae1pest
- Second interactor
- Pseudomonas fluorescens
.JPG?width=60)
Pseudomonas fluorescense5biocontrol_agent - Outcome
- number of galls/seedling, number of eggs/seedling and final nematode populatione5
- Direction
- reducede5
- Comparator
- earthen pots without organic amendments, bio-agents and chemicale3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e1“population of rice root-knot nematode (Meloidogyne graminicola) in rice”
e3“The earthen pots without organic amendments, bio-agents and chemical were treated as control”
e5“Nematode reproduction and multiplication parameters such as number of galls/seedling, number of eggs/seedling and final nematode population were significantly reduced in neem cake @ 50 g/pot + Pseudomonas fluorescens @ 50 g/pot”
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See all 11 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.