Abstract
Root-knot nematodes, Meloidogyne spp. are one of the most important pests of tomato crop. Among the promising bio-control agents of plant parasitic nematodes, the bacterial parasite-Pasteuria penetrans has been investigated in detail and found to hold potential for the management of Meloidogyne spp. An experiment was carried out underscreen house conditions of Department of Nematology of CCS Haryana Agricultural University, Hisar, to study the effect of organic amendments (neem cake, mustard cake, castor cake and farmyard mannure) on the life cycle development of P. penetrans on M. javanica infecting tomato. All life cycle stages of bacterium viz., microcolony, thallus, quartets, diads, immature spore and mature spore were observed and nematode viz., parasitic J2, spike tail stage, immature and mature female were observed and compared for all the organic amendments. The result revealed that the life cycle of P. penetrans on root-knot nematode was completed in all the organic amendments but, the life cycle was well synchronised with root-knot nematode when it was integrated with mustard cake.There was slight delay in life cycle of bacterium where castor cake, neem cake and FYM were applied. However, both nematode and bacteriumcompleted their life cycle in all the organic amendments.
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Claims 6
Claim · model-written summary
Pasteuria penetrans completed its life cycle on root-knot nematode in all organic amendments.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- organic amendmentse1
- Interactor
- P. penetransPasteuria penetranse1biocontrol_agent
- Second interactor
- root-knot nematode
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=60)
Meloidogynee1pest - Outcome
- life cycle of P. penetranse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)
Verbatim
t0“infecting Tomato”
e1“the life cycle of P. penetrans on root-knot nematode was completed in all the organic amendments”
Claim · model-written summary
Integrating mustard cake gave a well synchronised life cycle of the bacterium with root-knot nematode.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- mustard cakee2
- Interactor
- root-knot nematodeMeloidogynee2pest
- Outcome
- life cycle was well synchronised with root-knot nematodee2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“infecting Tomato”
e2“the life cycle was well synchronised with root-knot nematode when it was integrated with mustard cake”
Claim · model-written summary
Castor cake, neem cake and farmyard manure caused a slight delay in the life cycle of Pasteuria penetrans.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- castor cake, neem cake and FYMe3
- Outcome
- delay in life cycle of bacteriume3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“infecting Tomato”
e3“There was slight delay in life cycle of bacterium where castor cake, neem cake and FYM were applied”
Claim · model-written summary
All life cycle stages of the bacterium (microcolony to mature spore) were observed on tomato roots.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- microcolony, thallus, quartets, diads, immature spore and mature sporee4
- Outcome
- life cycle stages of bacteriume4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“infecting Tomato”
e4“All life cycle stages of bacterium viz., microcolony, thallus, quartets, diads, immature spore and mature spore were observed”
Claim · model-written summary
All nematode stages (parasitic J2 to mature female) were observed and compared across the organic amendments.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- organic amendmentse5
- Outcome
- parasitic J2, spike tail stage, immature and mature femalee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“infecting Tomato”
e5“nematode viz., parasitic J2, spike tail stage, immature and mature female were observed and compared for all the organic amendments”
Claim · model-written summary
Both the nematode and the bacterium completed their life cycle in all organic amendments.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- organic amendmentse6
- Outcome
- completed their life cyclee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“infecting Tomato”
e6“However, both nematode and bacteriumcompleted their life cycle in all the organic amendments”
The same questions in other papers
botanical · Bacteria · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- positive
fertilization · Bacteria · Solanum lycopersicum (tomato)Positive and negative results
2 in the opposite direction
- positive
- 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.