Paper · 2008 · Kirkuk University Journal-Scientific Studies

Effect of Irrigation levels on the growth and yield of olive trees (Olea europaea L. cv.Ashrasie)

Bahram Kh. Mohammed; Ibrahim M. Noori

7
claims
14
verbatim quotes
6
citations
3
research areas
✓
Open access · cc-by

Abstract

This study was performed at olive orchard at the Engineering College, University of Salahaddin- Erbil, Kurdistan, Iraq, during the growing season 2000-2001, on a sandy silty loam soil. The objectives of this study were to find out the responses of olive trees (Olea europaea L. cv. Ashrasie) to five irrigation frequencies (0,1,2,3 and 4) during drought season and to determine their effects on tree growth and yield. Numbers of replicates were three trees as a replicate. Forty-five trees of fourteen years old, Ashrasie cultivar were used, each nine uniform size trees distributed randomly among the 5 treatments in RCBD experiment. Irrigation treatments carried out at monthly intervals during the dry season, starting on June 1, by constant amounts of water for each treatment up to reach 60 cm soil depth to field capacity, using basin irrigation method. Irrigation treatments resulted significant increases in the shoot elongation and thickening percentages, leaf area at harvest, fruit yield and quality characteristics. As well as oil contents. The highest values of shoot elongation and thickening percentages were achieved when three irrigation treatments were used, while the best results of each leaf area at harvest, as well as oil content fruit quality characteristics such as fruit weight and size, pulp/stone ratio, were obtained from fourth irrigation treatment.

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 7

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Irrigation treatments significantly increased shoot elongation and thickening percentages in olive trees.

Taxon
olive treesOlea europaeat0
Material
Ashrasiet0
Treatment
Irrigation treatmentse1
Outcome
shoot elongation and thickening percentagese1
Direction
significant increasese1

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“olive trees (Olea europaea L. cv.Ashrasie)”

✓ located verbatim in the source · title, characters 55–97 · show in text ↑
e1

“Irrigation treatments resulted significant increases in the shoot elongation and thickening percentages, leaf area at harvest, fruit yield and quality characteristics. As well as oil contents”

✓ located verbatim in the source · abstract, characters 860–1051 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Irrigation treatments significantly increased leaf area at harvest, fruit yield and quality characteristics of olive trees.

Taxon
olive treesOlea europaeat0
Material
Ashrasiet0
Treatment
Irrigation treatmentse1
Outcome
leaf area at harvest, fruit yield and quality characteristicse1
Direction
significant increasese1

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“olive trees (Olea europaea L. cv.Ashrasie)”

✓ located verbatim in the source · title, characters 55–97 · show in text ↑
e1

“Irrigation treatments resulted significant increases in the shoot elongation and thickening percentages, leaf area at harvest, fruit yield and quality characteristics. As well as oil contents”

✓ located verbatim in the source · abstract, characters 860–1051 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Irrigation treatments increased oil content of olive trees.

Taxon
olive treesOlea europaeat0
Material
Ashrasiet0
Treatment
Irrigation treatmentse1
Outcome
oil contentse1
Direction
increaseinferrede1

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“olive trees (Olea europaea L. cv.Ashrasie)”

✓ located verbatim in the source · title, characters 55–97 · show in text ↑
e1

“Irrigation treatments resulted significant increases in the shoot elongation and thickening percentages, leaf area at harvest, fruit yield and quality characteristics. As well as oil contents”

✓ located verbatim in the source · abstract, characters 860–1051 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Three irrigation treatments gave the highest shoot elongation and thickening percentages.

Taxon
olive treesOlea europaeat0
Material
Ashrasiet0
Treatment
three irrigation treatmentse2
Outcome
shoot elongation and thickening percentagese2
Direction
highest valuese2

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“olive trees (Olea europaea L. cv.Ashrasie)”

✓ located verbatim in the source · title, characters 55–97 · show in text ↑
e2

“The highest values of shoot elongation and thickening percentages were achieved when three irrigation treatments were used”

✓ located verbatim in the source · abstract, characters 1053–1175 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The fourth irrigation treatment gave the best leaf area at harvest.

Taxon
olive treesOlea europaeat0
Material
Ashrasiet0
Treatment
fourth irrigation treatmente3
Outcome
leaf area at harveste3
Direction
best resultse3

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“olive trees (Olea europaea L. cv.Ashrasie)”

✓ located verbatim in the source · title, characters 55–97 · show in text ↑
e3

“while the best results of each leaf area at harvest, as well as oil content fruit quality characteristics such as fruit weight and size, pulp/stone ratio, were obtained from fourth irrigation treatment”

✓ located verbatim in the source · abstract, characters 1177–1378 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The fourth irrigation treatment gave the best oil content.

Taxon
olive treesOlea europaeat0
Material
Ashrasiet0
Treatment
fourth irrigation treatmente3
Outcome
oil contente3
Direction
best resultse3

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“olive trees (Olea europaea L. cv.Ashrasie)”

✓ located verbatim in the source · title, characters 55–97 · show in text ↑
e3

“while the best results of each leaf area at harvest, as well as oil content fruit quality characteristics such as fruit weight and size, pulp/stone ratio, were obtained from fourth irrigation treatment”

✓ located verbatim in the source · abstract, characters 1177–1378 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The fourth irrigation treatment gave the best fruit weight and size and pulp/stone ratio.

Taxon
olive treesOlea europaeat0
Material
Ashrasiet0
Treatment
fourth irrigation treatmente3
Outcome
fruit weight and size, pulp/stone ratioe3
Direction
best resultse3

Not reportedComparator

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

Olea europaea
Olea europaea · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“olive trees (Olea europaea L. cv.Ashrasie)”

✓ located verbatim in the source · title, characters 55–97 · show in text ↑
e3

“while the best results of each leaf area at harvest, as well as oil content fruit quality characteristics such as fruit weight and size, pulp/stone ratio, were obtained from fourth irrigation treatment”

✓ located verbatim in the source · abstract, characters 1177–1378 · show in text ↑

irrigation · growth · Olea europaea (common olive)Results differ

44 papers: 22 positive, 22 negative or no effect

21 papers in the same direction as this paper · 21 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

40 papers more in this group

See all 44 papers →

irrigation · yield · Olea europaea (common olive)Results differ

53 papers: 26 positive, 27 negative or no effect

25 papers in the same direction as this paper · 24 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

49 papers more in this group

See all 53 papers →

irrigation · quality: general · Olea europaea (common olive)Positive and negative results

6 papers: 1 positive, 5 negative or no effect

5 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

2 papers more in this group

See all 6 papers →

irrigation · quality: oil · Olea europaea (common olive)Positive and negative results

31 papers: 15 positive, 16 negative or no effect

14 papers in the same direction as this paper · 14 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

27 papers more in this group

See all 31 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.