Paper · 2021 · Menoufia Journal of Plant Production

EFFECT OF SOME GIBBERELLIC ACID AND FORCHLORFNURON APPLICATION ON PRODUCTIVITY AND BERRIES DEVELOPMENT OF EARLY SWEET GRAPES

A. E. Hassan; E. H. M. Behary

6
claims
12
verbatim quotes
1
citations
3
research areas
✓
Open access

Abstract

This study was conducted during the two consecutive seasons of (2016 and 2017) in a private vineyard located at El-Sadat City, Menoufia Governorate, to study the effect of gibberellic acid (GA3) and forchlorfnuron (CPPU) application on productivity and berries development of Early Sweet grape cultivar. The vines were five years old, spaced at 2×3 meters apart, grown in a sandy soil and trellised according to the Spanish Parron system. Eight treatments were applied by using dipping clusters with CPPU at concentrations from 1 to 7ppm after fruit set directly in combined plus spraying with GA3 at 20 ppm at 6-8mm berry diameter in additionally control treatment. The results revealed that all CPPU and GA3 applications had the best results in comparison with control in both seasons. Excessive CPPU doses + spraying clusters with GA3 increases yield and physical properties of berries i.e. berry weight, size and firmness, but it delay maturation. In contrast, lower CPPU doses + spraying clusters with GA3 cause a slightly in retarding maturation but reduces yield and its components. On the other hand, moderate CPPU doses (dipping clusters with CPPU at 5ppm + spraying clusters with GA3 at 20 ppm) had an achieving in appropriate balance between yield and cluster quality attributes of Early Sweet grapevines in both seasons.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High CPPU with GA3 increased grape yield.

Taxon
grapee1
Material
Early Sweete1
Treatment
Excessive CPPU doses + spraying clusters with GA3e0
Outcome
yielde0
Direction
increasese0

Not reportedComparator

Verbatim

e0

“Excessive CPPU doses + spraying clusters with GA3 increases yield”

✓ located verbatim in the source · abstract, characters 788–853 · show in text ↑
e1

“Early Sweet grape cultivar”

✓ located verbatim in the source · abstract, characters 276–302 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High CPPU with GA3 increased grape berry weight, size and firmness.

Taxon
grapee1
Material
Early Sweete1
Treatment
Excessive CPPU doses + spraying clusters with GA3e0
Outcome
berry weight, size and firmnesse0
Direction
increasese0

Not reportedComparator

Verbatim

e0

“Excessive CPPU doses + spraying clusters with GA3 increases yield and physical properties of berries i.e. berry weight, size and firmness”

✓ located verbatim in the source · abstract, characters 788–925 · show in text ↑
e1

“Early Sweet grape cultivar”

✓ located verbatim in the source · abstract, characters 276–302 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High CPPU with GA3 delayed grape maturation.

Taxon
grapee2
Treatment
Excessive CPPU doses + spraying clusters with GA3e1
Outcome
maturatione0
Direction
delaye0

Not reportedComparator

Verbatim

e0

“but it delay maturation”

✓ located verbatim in the source · abstract, characters 927–950 · show in text ↑
e1

“Excessive CPPU doses + spraying clusters with GA3”

✓ located verbatim in the source · abstract, characters 788–837 · show in text ↑
e2

“Early Sweet grape cultivar”

✓ located verbatim in the source · abstract, characters 276–302 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Low CPPU with GA3 slightly delayed grape maturation.

Taxon
grapee1
Treatment
lower CPPU doses + spraying clusters with GA3e0
Outcome
maturatione0
Direction
retardinge0
Qualifier
slightlye0

Not reportedComparator

Verbatim

e0

“lower CPPU doses + spraying clusters with GA3 cause a slightly in retarding maturation”

✓ located verbatim in the source · abstract, characters 965–1051 · show in text ↑
e1

“Early Sweet grape cultivar”

✓ located verbatim in the source · abstract, characters 276–302 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Low CPPU with GA3 reduced grape yield and its components.

Taxon
grapee1
Treatment
lower CPPU doses + spraying clusters with GA3e0
Outcome
yield and its componentse0
Direction
reducese0

Not reportedComparator

Verbatim

e0

“lower CPPU doses + spraying clusters with GA3 cause a slightly in retarding maturation but reduces yield and its components”

✓ located verbatim in the source · abstract, characters 965–1088 · show in text ↑
e1

“Early Sweet grape cultivar”

✓ located verbatim in the source · abstract, characters 276–302 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Moderate CPPU at 5 ppm with GA3 at 20 ppm balanced grape yield and cluster quality in both seasons.

Taxon
Early Sweet grapevinese0
Treatment
dipping clusters with CPPU at 5ppm + spraying clusters with GA3 at 20 ppme0
Outcome
appropriate balance between yield and cluster quality attributese0
Qualifier
in both seasonse0

Verbatim

e0

“moderate CPPU doses (dipping clusters with CPPU at 5ppm + spraying clusters with GA3 at 20 ppm) had an achieving in appropriate balance between yield and cluster quality attributes of Early Sweet grapevines in both seasons”

✓ located verbatim in the source · abstract, characters 1109–1331 · show in text ↑

cluster · yield · VitisResults differ

22 papers: 12 positive, 10 negative or no effect

11 papers in the same direction as this paper · 10 in the opposite direction

  1. no effect
  2. negative
  3. negative

18 papers more in this group

See all 22 papers →

Gibberellic acid · yield · VitisResults differ

47 papers: 39 positive, 8 negative or no effect

38 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

43 papers more in this group

See all 47 papers →

cluster · phenology · VitisPositive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

Gibberellic acid · phenology · VitisPositive and negative results

4 papers: 3 positive, 1 negative or no effect

3 in the opposite direction

  1. positive
  2. positive
  3. positive
See all 4 papers →

Gibberellic acid · quality: postharvest · VitisPositive and negative results

16 papers: 14 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

12 papers more in this group

See all 16 papers →

cluster · quality: postharvest · VitisResults agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

forchlorfenuron · quality: postharvest · VitisResults agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 papers →

forchlorfenuron · yield · VitisResults agree

11 papers: 11 positive, 0 negative or no effect

10 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

7 papers more in this group

See all 11 papers →

8 of 11 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.