Paper · 2011 · African Crop Science Journal

Flea beetle populations and economic yield of Okra as influenced by Nitrogen and 2, 3-Dihydro-2, 2-Dimethyl Benzofuran

BC Echezona; JE Asiegbu; AA Izuabga

3
claims
6
verbatim quotes
8
citations
2
research areas
✓
Open access

Abstract

Nitrogen fertilisation and carbofuran applications impact plants, yet few studies examine their general impact on plant performance and plant susceptibility to insect pests and diseases when applied together. The performance of okra (Abelmoschus esculentus L. Moench) and infestations by flea beetles in relation to nitrogen and carbofuran applications were, therefore, evaluated under a humid tropical environment. Treatments comprised of combinations of four rates of 2, 3-dihydro-2, 2-dimethylbenzofuran or carbofuran (0.0, 0.5, 1.0 and 1.5 kg ha-1) and four levels of N- fertiliser (0, 40, 80 and 120 kg ha-1). The presence of Podagrica uniformis was recorded much earlier on the plants than Nisotra sjostedti. The population of either flea beetle remained lower throughout the vegetative than the reproductive phase. While N fertilisation resulted in higher insect count than where no N was added, carbofuran at 1.0 kg ha-1 and above significantly (P

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Claims 3

Observationobservedoriginal resultmeasured

Claim · model-written summary

Podagrica uniformis was recorded much earlier on okra plants than Nisotra sjostedti.

Interactor
Podagrica uniformise1pest
Second interactor
Nisotra sjostedtie1pest
Outcome
presencee1
Direction
much earliere1

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 ↗

Verbatim

e0

“The performance of okra (Abelmoschus esculentus L. Moench) and infestations by flea beetles in relation to nitrogen and carbofuran applications were, therefore, evaluated under a humid tropical environment”

✓ located verbatim in the source · abstract, characters 209–414 · show in text ↑
e1

“The presence of Podagrica uniformis was recorded much earlier on the plants than Nisotra sjostedti”

✓ located verbatim in the source · abstract, characters 615–713 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Flea beetle population remained lower in the vegetative phase than in the reproductive phase of okra.

Organ / stage
vegetativee2
Interactor
flea beetlee2pest
Outcome
populatione2
Direction
remained lowere2
Comparator
reproductive phasee2

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 ↗

Verbatim

e0

“The performance of okra (Abelmoschus esculentus L. Moench) and infestations by flea beetles in relation to nitrogen and carbofuran applications were, therefore, evaluated under a humid tropical environment”

✓ located verbatim in the source · abstract, characters 209–414 · show in text ↑
e2

“The population of either flea beetle remained lower throughout the vegetative than the reproductive phase”

✓ located verbatim in the source · abstract, characters 715–820 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Nitrogen fertilisation resulted in a higher insect count on okra than where no nitrogen was added.

Treatment
N fertilisatione3
Outcome
insect counte3
Direction
highere3
Comparator
where no N was addede3

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 ↗

Verbatim

e0

“The performance of okra (Abelmoschus esculentus L. Moench) and infestations by flea beetles in relation to nitrogen and carbofuran applications were, therefore, evaluated under a humid tropical environment”

✓ located verbatim in the source · abstract, characters 209–414 · show in text ↑
e3

“While N fertilisation resulted in higher insect count than where no N was added”

✓ located verbatim in the source · abstract, characters 822–901 · show in text ↑

fertilization · pest · Abelmoschus esculentus (okra)Positive and negative results

20 papers: 13 positive, 7 negative or no effect

6 papers in the same direction as this paper · 13 in the opposite direction

  1. positive
  2. positive
  3. positive

16 papers more in this group

See all 20 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.