Paper · 2024 · Heliyon

Understanding the dynamics of Meloidogyne incognita infestation in pomegranate orchards of Himachal Pradesh, India (year 2018, 2019 and 2021) and its management strategies

Mukesh; Kishore Khosla; Satish K. Sharma

14
claims
30
verbatim quotes
7
citations
3
research areas
✓
Open access · cc-by

Abstract

This study investigates the prevalence and dynamics of pomegranate wilt disease induced by Meloidogyne incognita across the Kullu, Mandi and Solan districts of Himachal Pradesh (India), revealed notable spatial and temporal variations in nematode populations and galling severity across the regions. The highest average nematode infestation of 9.25 % was observed at Nauni with highest counts of average second-stage juvenile (J2) larvae (449 larvae per 100 cc of soil) followed by Hurla (Kullu) with 7.42 % infestation. Correlation analysis reveals a strong positive relationship between larval population and galling severity suggesting a potential link between nematode levels and plant damage. Common disease symptoms were leaf size reduction, yellowing and gradual decline of pomegranate plants, often observed in patches within orchards. Microscopic identification revealed distinctive pear-shaped body of mature females while J2 larvae displayed vermiform shapes and the associated species of M. incognita was confirmed through examination of the perineal pattern. Pathogenicity test reveals initiation of leaf yellowing symptom after 45 days of inoculation of larval suspension and root galling was observed after 60 days onward followed by plant decline under greenhouse conditions. Results from pot and field experiments demonstrated the efficacy of Fluopyram and Fluensulfone in reducing nematode populations and galling severity. Treatment with drenching of Fluopyram at the rate of 2 ml/L reduced 98.56 % larvae under field and 99.00 % larvae/100 cc soil under pot conditions. Statistical analysis (paired t -test and MANOVA) confirms significant differences in galling severity and larval population before and after drenching. The study also underscores the importance of weed management in disease mitigation as several weed species ( Chenopodium album and Solanum nigrum) were identified as potential reservoirs for M. incognita in infested pomegranate plant basin. This investigation contributes to the advancement of management practices for pomegranate cultivation that addresses both nematode and weed infestations ultimately enhancing crop resilience and productivity.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 14

Observationobservedoriginal resultmeasured

Claim · model-written summary

Nematode infestation was highest at Nauni, at 9.25%, in pomegranate orchards infested by Meloidogyne incognita

Taxon
pomegranatePunica granatumt0
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pathogen
Outcome
nematode infestatione1
Value
9.25 %e1
Setting
Naunie1

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · 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

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e0

“This study investigates the prevalence and dynamics of pomegranate wilt disease induced by Meloidogyne incognita across the Kullu, Mandi and Solan districts of Himachal Pradesh (India)”

✓ located verbatim in the source · abstract, characters 0–184 · show in text ↑
e1

“The highest average nematode infestation of 9.25 % was observed at Nauni with highest counts of average second-stage juvenile (J2) larvae (449 larvae per 100 cc of soil) followed by Hurla (Kullu) with 7.42 % infestation”

✓ located verbatim in the source · abstract, characters 300–519 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The highest count of second-stage juvenile larvae in pomegranate orchard soil was 449 larvae per 100 cc at Nauni

Taxon
pomegranatePunica granatumt0
Outcome
average second-stage juvenile (J2) larvaee1
Value
449 larvae per 100 cc of soile1
Setting
Naunie1

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e1

“The highest average nematode infestation of 9.25 % was observed at Nauni with highest counts of average second-stage juvenile (J2) larvae (449 larvae per 100 cc of soil) followed by Hurla (Kullu) with 7.42 % infestation”

✓ located verbatim in the source · abstract, characters 300–519 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Nematode infestation at Hurla (Kullu) was 7.42% in pomegranate orchards

Taxon
pomegranatePunica granatumt0
Outcome
infestatione1
Value
7.42 %e1
Setting
Hurla (Kullu)e1

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e1

“The highest average nematode infestation of 9.25 % was observed at Nauni with highest counts of average second-stage juvenile (J2) larvae (449 larvae per 100 cc of soil) followed by Hurla (Kullu) with 7.42 % infestation”

✓ located verbatim in the source · abstract, characters 300–519 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Larval population of Meloidogyne incognita was strongly positively associated with galling severity in pomegranate

Taxon
pomegranatePunica granatumt0
Interactor
Meloidogyne incognitaMeloidogyne incognitae0pathogen
Outcome
galling severitye2
Direction
positivee2

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · 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

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e0

“This study investigates the prevalence and dynamics of pomegranate wilt disease induced by Meloidogyne incognita across the Kullu, Mandi and Solan districts of Himachal Pradesh (India)”

✓ located verbatim in the source · abstract, characters 0–184 · show in text ↑
e2

“Correlation analysis reveals a strong positive relationship between larval population and galling severity”

✓ located verbatim in the source · abstract, characters 521–627 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Common symptoms in pomegranate were reduced leaf size, yellowing and gradual decline of plants

Taxon
pomegranatePunica granatumt0
Outcome
leaf size reduction, yellowing and gradual declinee3

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e3

“Common disease symptoms were leaf size reduction, yellowing and gradual decline of pomegranate plants”

✓ located verbatim in the source · abstract, characters 698–799 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The species associated with pomegranate galling was confirmed as Meloidogyne incognita by perineal pattern

Taxon
pomegranatePunica granatumt0
Interactor
M. incognitaMeloidogyne incognitae4pathogen
Outcome
associated species of M. incognita was confirmede4
Qualifier
through examination of the perineal patterne4

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · 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

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e4

“the associated species of M. incognita was confirmed through examination of the perineal pattern”

✓ located verbatim in the source · abstract, characters 974–1070 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Pomegranate plants inoculated with larval suspension showed leaf yellowing after 45 days under greenhouse conditions

Taxon
pomegranatePunica granatumt0
Treatment
inoculation of larval suspensione5
Outcome
leaf yellowing symptome5
Value
45 dayse5
Setting
greenhouse conditionse5

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e5

“Pathogenicity test reveals initiation of leaf yellowing symptom after 45 days of inoculation of larval suspension and root galling was observed after 60 days onward followed by plant decline under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 1072–1290 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Pomegranate plants inoculated with larval suspension showed root galling after 60 days under greenhouse conditions

Taxon
pomegranatePunica granatumt0
Treatment
inoculation of larval suspensione5
Outcome
root gallinge5
Value
60 dayse5
Setting
greenhouse conditionse5

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e5

“Pathogenicity test reveals initiation of leaf yellowing symptom after 45 days of inoculation of larval suspension and root galling was observed after 60 days onward followed by plant decline under greenhouse conditions”

✓ located verbatim in the source · abstract, characters 1072–1290 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Drenching with Fluopyram at 2 ml/L reduced larvae by 98.56% in the field in pomegranate

Taxon
pomegranatePunica granatumt0
Treatment
drenching of Fluopyram at the rate of 2 ml/Le6
Outcome
larvaee6
Direction
reducede6
Value
98.56 %e6
Setting
fielde6

Not reportedComparator

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e6

“Treatment with drenching of Fluopyram at the rate of 2 ml/L reduced 98.56 % larvae under field and 99.00 % larvae/100 cc soil under pot conditions”

✓ located verbatim in the source · abstract, characters 1442–1588 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Drenching with Fluopyram at 2 ml/L reduced larvae by 99.00% per 100 cc soil under pot conditions in pomegranate

Taxon
pomegranatePunica granatumt0
Treatment
drenching of Fluopyram at the rate of 2 ml/Le6
Outcome
larvae/100 cc soile6
Direction
reducede6
Value
99.00 %e6
Setting
pot conditionse6

Not reportedComparator

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e6

“Treatment with drenching of Fluopyram at the rate of 2 ml/L reduced 98.56 % larvae under field and 99.00 % larvae/100 cc soil under pot conditions”

✓ located verbatim in the source · abstract, characters 1442–1588 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fluopyram and Fluensulfone reduced nematode populations and galling severity in pomegranate in pot and field experiments

Taxon
pomegranatePunica granatumt0
Treatment
Fluopyram and Fluensulfonee7
Outcome
nematode populations and galling severitye7
Direction
reducinge7
Setting
pot and field experimentse7

Not reportedComparator

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e7

“Results from pot and field experiments demonstrated the efficacy of Fluopyram and Fluensulfone in reducing nematode populations and galling severity”

✓ located verbatim in the source · abstract, characters 1292–1440 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Drenching produced significant differences in galling severity and larval population in pomegranate before and after treatment

Taxon
pomegranatePunica granatumt0
Treatment
drenchinge1
Outcome
galling severity and larval populatione1

Not reportedComparatorDirection

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e1

“Statistical analysis (paired t -test and MANOVA) confirms significant differences in galling severity and larval population before and after drenching”

✓ located verbatim in the source · abstract, characters 1590–1740 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Chenopodium album and Solanum nigrum were identified as potential reservoirs for M. incognita in infested pomegranate plant basin

Taxon
pomegranatePunica granatume2
Interactor
Chenopodium albumChenopodium albume2weed
Second interactor
Solanum nigrumSolanum nigrume2weed
Outcome
potential reservoirs for M. incognitae2

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗
Chenopodium album
Chenopodium album · InteractorOlivier Pichard · CC BY-SA 3.0 · Wikimedia Commons ↗
Solanum nigrum
Solanum nigrum · Second interactorHladac · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e2

“several weed species ( Chenopodium album and Solanum nigrum) were identified as potential reservoirs for M. incognita in infested pomegranate plant basin”

✓ located verbatim in the source · abstract, characters 1828–1981 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Weed management is important for mitigating disease in pomegranate

Taxon
pomegranatePunica granatumt0
Outcome
weed management in disease mitigatione1

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

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“pomegranate orchards”

✓ located verbatim in the source · title, characters 67–87 · show in text ↑
e1

“The study also underscores the importance of weed management in disease mitigation”

✓ located verbatim in the source · abstract, characters 1742–1824 · show in text ↑

fluopyram · disease · Punica granatum (pomegranate)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

application · pest · Punica granatum (pomegranate)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.