Paper · 2012 · Indian Journal Of Nematology

Survey, Pathogenic Effect and Management of Root- Knot Nematode, Meloidogyne incognita on Okra

V.K. Singh; V. B. Singh; Lokesh Zalpuri

15
claims
40
verbatim quotes
1
citations
2
research areas
—
Not open access

Abstract

Survey of okra fields were conducted for the occurrence of economically important plant parasitic nematodes of some localities of Jammu and Samba district of J&K.Among the different plant parasitic nematodes Meloidogyne spp. was more frequently encountered in maximum localities of Jammu and Samba districts. Experiment was conducted to find out the effect of different inoculum levels of nematode and effect of nematicides on the plant growth and nematode multiplication in pot condition on okra plant. Significant reduction occurred in plant growth parameters viz., shoot length, root length, shoot and root mass, dry shoot mass and number of leaves of plant inoculated with 500, 1000 and 2000 juveniles/pot. The highest gall index was recorded at inoculum levels of 1000 and 2000 respectively. Total nematode population/pot significantly increased progressively with an increase in nematode population from 20–2000 J2/pot. Reduction in multiplication of the nematode was observed with increase inoculum levels. Application of nematicides significantly increased plant growth and decreased the host infestation by root-knot nematode, Meloidogyne incognita over control. Maximum plant height was recorded in carbofuran @1.5 kg a.i/ha treated soil followed by carbofuran 1.0, phorate1.5, and phorate 1.0 kg a.i/ha respectively. However, no more differences between carbofuran 1.5 kg a.i/ha and phorate 1.0 kg a.i/ha at plant growth and nematode multiplication levels. The minimum population was recorded in carbofuran at1.5 kg a.i/ha and maximum population in phorate at 1.0 kg a.i/ha treated soil. The both nematicides are effective as a form of chemical control measures. The maximum reduction emergence of juveniles from M. incognita was noted at 40 ppm concentration of carbofuran.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 15

Observationobservedoriginal resultmeasured

Claim · model-written summary

Meloidogyne spp. was the plant parasitic nematode most frequently encountered in the maximum number of localities of Jammu and Samba districts in the okra field survey.

Interactor
Meloidogyne spp.Meloidogynee0pest
Outcome
more frequently encounterede0
Setting
Jammu and Samba districtse0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗
Meloidogyne
Meloidogyne · Interactor · picture of the genus (one of its species)Photo by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
e0

“Among the different plant parasitic nematodes Meloidogyne spp. was more frequently encountered in maximum localities of Jammu and Samba districts”

✓ located verbatim in the source · abstract, characters 162–307 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Inoculation with 500, 1000 and 2000 juveniles/pot significantly reduced shoot length and root length of okra.

Treatment
inoculated with 500, 1000 and 2000 juveniles/pote0
Interactor
Meloidogyne incognitaMeloidogyne incognitat1pest
Outcome
shoot length, root lengthe0
Direction
reductione0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
t1

“Meloidogyne incognita”

✓ located verbatim in the source · title, characters 65–86 · show in text ↑
e0

“Significant reduction occurred in plant growth parameters viz., shoot length, root length, shoot and root mass, dry shoot mass and number of leaves of plant inoculated with 500, 1000 and 2000 juveniles/pot”

✓ located verbatim in the source · abstract, characters 504–709 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Inoculation with 500, 1000 and 2000 juveniles/pot significantly reduced shoot and root mass and dry shoot mass of okra.

Treatment
inoculated with 500, 1000 and 2000 juveniles/pote0
Interactor
Meloidogyne incognitaMeloidogyne incognitat1pest
Outcome
shoot and root mass, dry shoot masse0
Direction
reductione0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
t1

“Meloidogyne incognita”

✓ located verbatim in the source · title, characters 65–86 · show in text ↑
e0

“Significant reduction occurred in plant growth parameters viz., shoot length, root length, shoot and root mass, dry shoot mass and number of leaves of plant inoculated with 500, 1000 and 2000 juveniles/pot”

✓ located verbatim in the source · abstract, characters 504–709 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Inoculation with 500, 1000 and 2000 juveniles/pot significantly reduced the number of leaves of okra.

Treatment
inoculated with 500, 1000 and 2000 juveniles/pote0
Interactor
Meloidogyne incognitaMeloidogyne incognitat1pest
Outcome
number of leavese0
Direction
reductione0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
t1

“Meloidogyne incognita”

✓ located verbatim in the source · title, characters 65–86 · show in text ↑
e0

“Significant reduction occurred in plant growth parameters viz., shoot length, root length, shoot and root mass, dry shoot mass and number of leaves of plant inoculated with 500, 1000 and 2000 juveniles/pot”

✓ located verbatim in the source · abstract, characters 504–709 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The highest gall index was recorded at inoculum levels of 1000 and 2000 juveniles.

Treatment
inoculum levels of 1000 and 2000e0
Interactor
Meloidogyne incognitaMeloidogyne incognitat1pest
Outcome
gall indexe0
Direction
higheste0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
t1

“Meloidogyne incognita”

✓ located verbatim in the source · title, characters 65–86 · show in text ↑
e0

“The highest gall index was recorded at inoculum levels of 1000 and 2000 respectively”

✓ located verbatim in the source · abstract, characters 711–795 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Total nematode population per pot increased significantly and progressively as the inoculated nematode population rose from 20 to 2000 J2/pot.

Treatment
increase in nematode population from 20–2000 J2/pote0
Interactor
Meloidogyne incognitaMeloidogyne incognitat1pest
Outcome
Total nematode population/pote0
Direction
increasede0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
t1

“Meloidogyne incognita”

✓ located verbatim in the source · title, characters 65–86 · show in text ↑
e0

“Total nematode population/pot significantly increased progressively with an increase in nematode population from 20–2000 J2/pot”

✓ located verbatim in the source · abstract, characters 797–924 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Multiplication of the nematode was reduced as inoculum levels increased.

Treatment
increase inoculum levelse0
Interactor
Meloidogyne incognitaMeloidogyne incognitat1pest
Outcome
multiplication of the nematodee0
Direction
Reductione0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
t1

“Meloidogyne incognita”

✓ located verbatim in the source · title, characters 65–86 · show in text ↑
e0

“Reduction in multiplication of the nematode was observed with increase inoculum levels”

✓ located verbatim in the source · abstract, characters 926–1012 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nematicide application significantly increased okra plant growth compared with the control.

Treatment
Application of nematicidese0
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pest
Outcome
plant growthe0
Direction
increasede0
Comparator
controle0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
e0

“Application of nematicides significantly increased plant growth and decreased the host infestation by root-knot nematode, Meloidogyne incognita over control”

✓ located verbatim in the source · abstract, characters 1014–1170 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nematicide application decreased host infestation by the root-knot nematode Meloidogyne incognita compared with the control.

Treatment
Application of nematicidese0
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pest
Outcome
host infestatione0
Direction
decreasede0
Comparator
controle0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
e0

“Application of nematicides significantly increased plant growth and decreased the host infestation by root-knot nematode, Meloidogyne incognita over control”

✓ located verbatim in the source · abstract, characters 1014–1170 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maximum plant height was recorded with carbofuran at 1.5 kg a.i/ha, followed by carbofuran 1.0, phorate 1.5 and phorate 1.0 kg a.i/ha.

Treatment
carbofuran @1.5 kg a.i/hae0
Interactor
Meloidogyne incognitaMeloidogyne incognitat1pest
Outcome
plant heighte0
Direction
Maximume0
Comparator
carbofuran 1.0, phorate1.5, and phorate 1.0 kg a.i/hae0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
t1

“Meloidogyne incognita”

✓ located verbatim in the source · title, characters 65–86 · show in text ↑
e0

“Maximum plant height was recorded in carbofuran @1.5 kg a.i/ha treated soil followed by carbofuran 1.0, phorate1.5, and phorate 1.0 kg a.i/ha respectively”

✓ located verbatim in the source · abstract, characters 1172–1326 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Carbofuran at 1.5 kg a.i/ha and phorate at 1.0 kg a.i/ha showed no more differences in plant growth and nematode multiplication.

Treatment
carbofuran 1.5 kg a.i/hae0
Interactor
Meloidogyne incognitaMeloidogyne incognitat1pest
Outcome
plant growth and nematode multiplicatione0
Direction
no more differencese0
Comparator
phorate 1.0 kg a.i/hae0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
t1

“Meloidogyne incognita”

✓ located verbatim in the source · title, characters 65–86 · show in text ↑
e0

“no more differences between carbofuran 1.5 kg a.i/ha and phorate 1.0 kg a.i/ha at plant growth and nematode multiplication levels”

✓ located verbatim in the source · abstract, characters 1337–1466 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The minimum nematode population was recorded in soil treated with carbofuran at 1.5 kg a.i/ha.

Treatment
carbofuran at1.5 kg a.i/hae0
Interactor
Meloidogyne incognitaMeloidogyne incognitat1pest
Outcome
populatione0
Direction
minimume0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
t1

“Meloidogyne incognita”

✓ located verbatim in the source · title, characters 65–86 · show in text ↑
e0

“The minimum population was recorded in carbofuran at1.5 kg a.i/ha and maximum population in phorate at 1.0 kg a.i/ha treated soil”

✓ located verbatim in the source · abstract, characters 1468–1597 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The maximum nematode population was recorded in soil treated with phorate at 1.0 kg a.i/ha.

Treatment
phorate at 1.0 kg a.i/hae0
Interactor
Meloidogyne incognitaMeloidogyne incognitat1pest
Outcome
populatione0
Direction
maximume0

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
t1

“Meloidogyne incognita”

✓ located verbatim in the source · title, characters 65–86 · show in text ↑
e0

“The minimum population was recorded in carbofuran at1.5 kg a.i/ha and maximum population in phorate at 1.0 kg a.i/ha treated soil”

✓ located verbatim in the source · abstract, characters 1468–1597 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors conclude that both nematicides are effective as chemical control measures.

Treatment
nematicidese0
Interactor
Meloidogyne incognitaMeloidogyne incognitat1pest
Outcome
effective as a form of chemical control measurese0

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · 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

t0

“Okra”

✓ located verbatim in the source · title, characters 90–94 · show in text ↑
t1

“Meloidogyne incognita”

✓ located verbatim in the source · title, characters 65–86 · show in text ↑
e0

“The both nematicides are effective as a form of chemical control measures”

✓ located verbatim in the source · abstract, characters 1599–1672 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The maximum reduction in juvenile emergence from M. incognita occurred at 40 ppm carbofuran.

Treatment
40 ppm concentration of carbofurane0
Interactor
M. incognitaMeloidogyne incognitae0pest
Outcome
emergence of juveniles from M. incognitae0
Direction
maximum reductione0

Not reportedTaxonComparator

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

“The maximum reduction emergence of juveniles from M. incognita was noted at 40 ppm concentration of carbofuran”

✓ located verbatim in the source · abstract, characters 1674–1784 · show in text ↑

carbofuran · Meloidogyne incognita · Abelmoschus esculentus (okra)Positive and negative results

14 papers: 13 positive, 1 negative or no effect

12 papers in the same direction as this paper · 1 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive

10 papers more in this group

See all 14 papers →

phorate · Meloidogyne incognita · Abelmoschus esculentus (okra)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. no effect
See all 2 papers →

insecticide · Meloidogyne incognita · Abelmoschus esculentus (okra)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive
See all 4 papers →

inoculation · Meloidogyne incognita · Abelmoschus esculentus (okra)Positive and negative results

8 papers: 3 positive, 5 negative or no effect

2 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. negative
  3. negative

4 papers more in this group

See all 8 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.