Paper · 2004 · Biological Agriculture & Horticulture

Growth and Oil Production of Fennel ( Foeniculum vulgare Mill): Effect of Irrigation and Organic Fertilization

M. A-H. Mohamed; M. Abdu

16
claims
33
verbatim quotes
44
citations
2
research areas
—
Not open access

Abstract

ABSTRACT Seeds of the aromatic plant fennel (Foeniculum vulgare Mill) were sown in sandy soil with 0 or 2.5 kg m−2 of organic fertilizer (OF); chicken manure, cattle manure or plant compost. Plants were irrigated two, three, four, five or six times at 21-day intervals commencing 21 days after sowing and continuing until harvest. Increasing the number of irrigations and application of organic fertilizers significantly delayed harvesting. Water stress imposed by restricting the number of irrigations significantly decreased plant height, branch number, and fruit and oil yield, whereas it increased the percentage volatile oils. All organic fertilizers increased plant growth and yield parameters. With or without organic fertilization, the increase in fruit yield with irrigation outweighed the decrease in volatile oil percentage, so volatile oil yield increased with irrigation. However, there was no significant difference in volatile oil yield between five and six times irrigated plants under any type of fertilization. By increasing both fruit yield and volatile oil percentage, organic fertilizers considerably increased oil yield. Chicken manure fertilized plants irrigated five or six times gave the highest volatile oil yields of 2.08 and 2.09 ml plant−1, respectively, followed by cattle manure fertilized plants irrigated five times (1.98 ml plant−1).

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 16

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

More irrigation delayed fennel harvest.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
Increasing the number of irrigationse0
Outcome
harvestinge0
Direction
delayede0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Increasing the number of irrigations and application of organic fertilizers significantly delayed harvesting.”

✓ located verbatim in the source · abstract, characters 331–440 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Organic fertilizer application delayed fennel harvest.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
application of organic fertilizerse0
Outcome
harvestinge0
Direction
delayede0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Increasing the number of irrigations and application of organic fertilizers significantly delayed harvesting.”

✓ located verbatim in the source · abstract, characters 331–440 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Restricted irrigation decreased fennel height and branch number.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
restricting the number of irrigationse0
Outcome
plant height, branch numbere0
Direction
decreasede0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Water stress imposed by restricting the number of irrigations significantly decreased plant height, branch number, and fruit and oil yield, whereas it increased the percentage volatile oils.”

✓ located verbatim in the source · abstract, characters 441–631 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Restricted irrigation decreased fennel fruit yield.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
restricting the number of irrigationse0
Outcome
fruite0
Direction
decreasede0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Water stress imposed by restricting the number of irrigations significantly decreased plant height, branch number, and fruit and oil yield, whereas it increased the percentage volatile oils.”

✓ located verbatim in the source · abstract, characters 441–631 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Restricted irrigation decreased fennel oil yield.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
restricting the number of irrigationse0
Outcome
oil yielde0
Direction
decreasede0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Water stress imposed by restricting the number of irrigations significantly decreased plant height, branch number, and fruit and oil yield, whereas it increased the percentage volatile oils.”

✓ located verbatim in the source · abstract, characters 441–631 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Restricted irrigation increased fennel volatile oil percentage.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
restricting the number of irrigationse0
Outcome
percentage volatile oilse0
Direction
increasede0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Water stress imposed by restricting the number of irrigations significantly decreased plant height, branch number, and fruit and oil yield, whereas it increased the percentage volatile oils.”

✓ located verbatim in the source · abstract, characters 441–631 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Organic fertilizers increased fennel growth and yield parameters.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
All organic fertilizerse0
Outcome
plant growth and yield parameterse0
Direction
increasede0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“All organic fertilizers increased plant growth and yield parameters.”

✓ located verbatim in the source · abstract, characters 632–700 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

More irrigation increased fennel fruit yield.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
irrigatione0
Outcome
fruit yielde0
Direction
increasee0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the increase in fruit yield with irrigation outweighed the decrease in volatile oil percentage”

✓ located verbatim in the source · abstract, characters 740–834 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

More irrigation decreased fennel volatile oil percentage.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
irrigatione0
Outcome
volatile oil percentagee0
Direction
decreasee0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the increase in fruit yield with irrigation outweighed the decrease in volatile oil percentage”

✓ located verbatim in the source · abstract, characters 740–834 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

More irrigation increased fennel volatile oil yield.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
irrigatione0
Outcome
volatile oil yielde0
Direction
increasede0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“volatile oil yield increased with irrigation.”

✓ located verbatim in the source · abstract, characters 839–884 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Fennel volatile oil yield did not differ significantly between five and six irrigations.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
fivee0
Outcome
volatile oil yielde0
Direction
no significant differencee0
Comparator
six times irrigated plantse0

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“there was no significant difference in volatile oil yield between five and six times irrigated plants under any type of fertilization.”

✓ located verbatim in the source · abstract, characters 894–1028 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Organic fertilizer increased fennel fruit yield and volatile oil percentage.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
organic fertilizerse0
Outcome
fruit yield and volatile oil percentagee0
Direction
increasinge0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“By increasing both fruit yield and volatile oil percentage, organic fertilizers considerably increased oil yield.”

✓ located verbatim in the source · abstract, characters 1029–1142 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Organic fertilizer considerably increased fennel oil yield.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
organic fertilizerse0
Outcome
oil yielde0
Direction
increasede0

Not reportedComparator

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“organic fertilizers considerably increased oil yield.”

✓ located verbatim in the source · abstract, characters 1089–1142 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Chicken manure and five irrigations yielded 2.08 ml plant−1 volatile oil.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
Chicken manuree0
Outcome
volatile oil yieldse0
Direction
higheste0
Value
2.08e0
Qualifier
irrigated fivee0

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Chicken manure fertilized plants irrigated five or six times gave the highest volatile oil yields of 2.08 and 2.09 ml plant−1, respectively”

✓ located verbatim in the source · abstract, characters 1143–1282 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Chicken manure and six irrigations yielded 2.09 ml plant−1 volatile oil.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
Chicken manuree0
Outcome
volatile oil yieldse0
Direction
higheste0
Value
2.09 ml plant−1e0
Qualifier
six timese0

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Chicken manure fertilized plants irrigated five or six times gave the highest volatile oil yields of 2.08 and 2.09 ml plant−1, respectively”

✓ located verbatim in the source · abstract, characters 1143–1282 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Cattle manure and five irrigations yielded 1.98 ml plant−1 volatile oil.

Taxon
fennel (Foeniculum vulgare Mill)Anethum foeniculume1
Treatment
cattle manuree0
Outcome
volatile oil yielde2
Direction
followed bye0
Value
1.98 ml plant−1e0
Qualifier
irrigated five timese0

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

Anethum foeniculum
Anethum foeniculum · TaxonRyan Hodnett · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“followed by cattle manure fertilized plants irrigated five times (1.98 ml plant−1).”

✓ located verbatim in the source · abstract, characters 1284–1367 · show in text ↑
e1

“fennel (Foeniculum vulgare Mill)”

✓ located verbatim in the source · abstract, characters 37–69 · show in text ↑
e2

“volatile oil yield increased with irrigation.”

✓ located verbatim in the source · abstract, characters 839–884 · show in text ↑

irrigation · growth · Anethum foeniculum (fennel)Positive and negative results

9 papers: 6 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

irrigation · yield · Anethum foeniculum (fennel)Positive and negative results

18 papers: 13 positive, 5 negative or no effect

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

  1. positive
  2. negative
  3. no effect

14 papers more in this group

See all 18 papers →

fertilization · quality: oil · Anethum foeniculum (fennel)Positive and negative results

26 papers: 23 positive, 3 negative or no effect

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

  1. negative
  2. negative
  3. no effect

22 papers more in this group

See all 26 papers →

fertilization · yield · Anethum foeniculum (fennel)Positive and negative results

53 papers: 51 positive, 2 negative or no effect

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

  1. positive
  2. positive
  3. no effect

49 papers more in this group

See all 53 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.