Paper · 2017 · Assiut Journal of Agricultural Sciences/Assuit Journal of Agricultural Sciences

The Effect of Controlled Deprivation of Nitrogen, Potassium and Ringing the Bearing Branches on the Incidence of Misshapen Navel Disorder and Fruit Quality in “Washington” Navel Oranges

K Farag; I Khattab; A Elsabagh; et al.

5
claims
10
verbatim quotes
0
citations
3
research areas
✓
Open access

Abstract

There is a lack of information about the causes leading to misshapen navel formation which obviously flourishes in young bearing navel oranges whether under arid or moderate conditions. Thirty “Washington” navel oranges at the age of 4 years old were treated on May 1st with 3 different deprivation regimes of Nitrogen (N), Potassium (K) and 2 ringing positions at the bearing branches to investigate the role of the increase of N and K leaf content, and carbohydrate availability on the incidence of misshapen navel disorder (MND). Either nutrient deprivation treatments or ringing processes remarkably reduced such disorder during two seasons 2013 and 2014. N leaf content increase was found to have a strong positive coefficient correlation with MND. Moreover, N deprivation for one month was the only treatment that didn’t cause consistent change in any fruit characteristic. Thus, the present study revealed that N deprivationwas the most effective treatment on mitigating incidence of MND.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nutrient deprivation reduced malformed navel disorder in both seasons.

Taxon
navel orangesCitrus sinensist0
Treatment
nutrient deprivation treatmentse0
Outcome
such disordere0
Direction
reducede0
Qualifier
two seasons 2013 and 2014e0

Not reportedComparator

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Either nutrient deprivation treatments or ringing processes remarkably reduced such disorder during two seasons 2013 and 2014.”

✓ located verbatim in the source · abstract, characters 533–659 · show in text ↑
t0

“Navel Oranges”

✓ located verbatim in the source · title, characters 172–185 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ringing reduced malformed navel disorder in both seasons.

Taxon
navel orangesCitrus sinensist0
Treatment
ringing processese0
Outcome
such disordere0
Direction
reducede0
Qualifier
two seasons 2013 and 2014e0

Not reportedComparator

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Either nutrient deprivation treatments or ringing processes remarkably reduced such disorder during two seasons 2013 and 2014.”

✓ located verbatim in the source · abstract, characters 533–659 · show in text ↑
t0

“Navel Oranges”

✓ located verbatim in the source · title, characters 172–185 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Leaf nitrogen content was strongly positively correlated with malformed navel disorder.

Taxon
navel orangesCitrus sinensist0
Organ / stage
leafe0
Compound
Ne0
Outcome
MNDe0
Direction
positivee0

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“N leaf content increase was found to have a strong positive coefficient correlation with MND.”

✓ located verbatim in the source · abstract, characters 660–753 · show in text ↑
t0

“Navel Oranges”

✓ located verbatim in the source · title, characters 172–185 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

One month of nitrogen deprivation caused no consistent change in fruit characteristics.

Taxon
navel orangesCitrus sinensist0
Treatment
N deprivation for one monthe0
Outcome
fruit characteristice0
Direction
didn’t cause consistent changee0

Not reportedComparator

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Moreover, N deprivation for one month was the only treatment that didn’t cause consistent change in any fruit characteristic.”

✓ located verbatim in the source · abstract, characters 754–879 · show in text ↑
t0

“Navel Oranges”

✓ located verbatim in the source · title, characters 172–185 · show in text ↑
Observationauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors found nitrogen deprivation the most effective treatment for mitigating malformed navel disorder.

Taxon
navel orangesCitrus sinensist0
Treatment
N deprivatione0
Outcome
incidence of MNDe0
Direction
most effectivee0

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Thus, the present study revealed that N deprivationwas the most effective treatment on mitigating incidence of MND.”

✓ located verbatim in the source · abstract, characters 880–995 · show in text ↑
t0

“Navel Oranges”

✓ located verbatim in the source · title, characters 172–185 · show in text ↑