Paper · 2005 · Annals of Plant Protection Sciences

Influence of Meloidogyne incognita on germination, seedling emergence and plant growth of lettuce, Lactuca sativa Linn.

Manoj Kumar; K.N. Pathak

7
claims
7
verbatim quotes
1
citations
2
research areas
—
Not open access

Abstract

Seed germination and seedling emergence of lettuce was inhibited significantly at a level of 500 Meloidogyne incognita/kg soil and above. There was more reduction in germination and seedling emergence in unsterilized soil than in sterilized soil. However, the significant decreased in growth parameters of lettuce due to M. incognita started at the level of 50 J2/kg soil. With the increase in initial inoculum above 50 J2, there was further decrease in growth characters viz., leaf and root length, fresh and dry weight of leaf and root of lettuce, the maximum reduction being at the highest level of (5000 J2/Kg soil). The number of galls formed on roots was found to increase with increased initial inoculum up to a level of 5000 nematodes. Though in number the maximum nematode population in soil and root was observed at initial level of 5000 M. incognita but the maximum increase in multiplication rate was at the inoculum level of 50 J2.

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Claims 7

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

At 500 nematodes per kilogram of soil and above, lettuce germination and emergence were significantly inhibited.

Taxon
lettuceLactuca sativae0
Treatment
500 Meloidogyne incognita/kg soil and abovee0
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pathogen
Outcome
Seed germination and seedling emergencee0
Direction
inhibitede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗
Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Seed germination and seedling emergence of lettuce was inhibited significantly at a level of 500 Meloidogyne incognita/kg soil and above”

✓ located verbatim in the source · abstract, characters 0–136 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Germination and emergence fell more in unsterilized than sterilized soil.

Treatment
unsterilized soile0
Outcome
germination and seedling emergencee0
Direction
more reductione0
Comparator
sterilized soile0

Not reportedTaxon

Verbatim

e0

“more reduction in germination and seedling emergence in unsterilized soil than in sterilized soil”

✓ located verbatim in the source · abstract, characters 148–245 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Lettuce growth parameters declined significantly from 50 J2 per kilogram of soil.

Taxon
lettuceLactuca sativae0
Treatment
50 J2/kg soile0
Interactor
M. incognitaMeloidogyne incognitae0pathogen
Outcome
growth parameterse0
Direction
decreasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗
Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“significant decreased in growth parameters of lettuce due to M. incognita started at the level of 50 J2/kg soil”

✓ located verbatim in the source · abstract, characters 260–371 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing inoculum above 50 J2 further reduced lettuce leaf and root lengths and fresh and dry weights, with maximum reduction at 5000 J2/kg soil.

Taxon
lettuceLactuca sativae0
Treatment
5000 J2/Kg soile0
Outcome
leaf and root length, fresh and dry weight of leaf and roote0
Direction
further decreasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“further decrease in growth characters viz., leaf and root length, fresh and dry weight of leaf and root of lettuce, the maximum reduction being at the highest level of (5000 J2/Kg soil)”

✓ located verbatim in the source · abstract, characters 434–619 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Root gall numbers increased with initial inoculum up to 5000 nematodes.

Treatment
increased initial inoculume0
Outcome
number of galls formed on rootse0
Direction
increasee0
Value
5000 nematodese0

Not reportedTaxon

Verbatim

e0

“number of galls formed on roots was found to increase with increased initial inoculum up to a level of 5000 nematodes”

✓ located verbatim in the source · abstract, characters 625–742 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Soil and root nematode population was highest at 5000 M. incognita.

Interactor
M. incognitaMeloidogyne incognitae0pathogen
Outcome
maximum nematode population in soil and roote0
Direction
maximume0
Value
5000 M. incognitae0

Not reportedTaxon

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“maximum nematode population in soil and root was observed at initial level of 5000 M. incognita”

✓ located verbatim in the source · abstract, characters 765–860 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Nematode multiplication rate increased most at 50 J2 inoculum.

Outcome
multiplication ratee0
Direction
maximum increasee0
Value
50 J2e0

Not reportedTaxon

Verbatim

e0

“maximum increase in multiplication rate was at the inoculum level of 50 J2”

✓ located verbatim in the source · abstract, characters 869–943 · show in text ↑