Paper · 2018 · Zagazig Journal of Agricultural Research

EFFECT OF SPRAYING SOME GROWTH REGULATORS; SALICYLIC ACID; CALCIUM AND BORON ON YIELD AND FRUIT QUALITY OF BARHEE DATE PALMS

Ahmed Jasim; A. Hassan; R. Al-Ashkar; et al.

9
claims
18
verbatim quotes
4
citations
3
research areas
—
Not open access

Abstract

The present study was conducted during two successive seasons of 2015 and 2016 on 10-years-old Barhee date palms (Phoenix dactylifera L.) grown in sandy soil under drip irrigation system in a private orchard located at El-Saddat District, Menoufia Governorate, Egypt. Bunches of the experimental palms were sprayed with six treatments as follows: water (control); gibberellin (GA3) and Naphthalene acetic acid (NAA) (each at 50, 100 and 50 ppm); salicylic acid (at 50, 50 and 100 ppm) boric acid and calcium/boron, each at (2000, 1500 and 1000 ppm). All the previous treatments were sprayed three times, the 1st was at one day before pollination, the 2nd was at the beginning of kimri stage and the 3rd was at the beginning of fruit color break (khalal or bisr stage), respectively. All the spraying solutions were supplied with 0.25% urea. Generally, NAA and GA3 treatments gained the highest value of each yield/palm; weight/bunch and number of fruits/spikelet without significant differences between them in most cases in both seasons. While spraying catro calcium (calcium + boron) gained the highest value of each yield/palm and weight/spikelet in the two seasons compared to the control, which recorded the lowest value for each of all the tested characteristics in both seasons. In addition, GA3 and NAA treatments produced the highest value for each of all fruit physical characteristics without significant differences between them except for the fruit dimensions in the two seasons. The highest seed weight was recorded for boric acid treatment in the two seasons, without significant difference with the control and salicylic acid treatments in the second season only. Moreover, the control treatment gained the lowest value for each of all physical fruit characteristics except seed weight in the second season. GA3 and NAA treatments achieved the highest value of each TSS% and TSS/acid ratio and the lowest content of peel carotene in the two seasons. While each of the control, boric acid and salicylic acid treatments recorded the highest percentage of fruit acidity in the two seasons. The highest chlorophyll content in the fruit peel was recorded for salicylic acid treatment.

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Claims 9

Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

NAA and GA3 produced the highest yield per palm, bunch weight and fruits per spikelet, with no significant difference between them in most cases.

Taxon
Phoenix dactylifera L.Phoenix dactyliferae1
Treatment
NAA and GA3 treatmentse0
Outcome
yield/palm; weight/bunch and number of fruits/spikelete0
Direction
higheste0
Qualifier
without significant differences between them in most cases in both seasonse0

Not reportedComparator

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

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“NAA and GA3 treatments gained the highest value of each yield/palm; weight/bunch and number of fruits/spikelet without significant differences between them in most cases in both seasons.”

✓ located verbatim in the source · abstract, characters 852–1038 · show in text ↑
e1

“Barhee date palms (Phoenix dactylifera L.)”

✓ located verbatim in the source · abstract, characters 95–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium plus boron produced the highest yield per palm and weight per spikelet relative to the control.

Taxon
Phoenix dactylifera L.Phoenix dactyliferae1
Treatment
catro calcium (calcium + boron)e0
Outcome
yield/palm and weight/spikelete0
Direction
higheste0
Comparator
controle0

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

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“spraying catro calcium (calcium + boron) gained the highest value of each yield/palm and weight/spikelet in the two seasons compared to the control”

✓ located verbatim in the source · abstract, characters 1045–1192 · show in text ↑
e1

“Barhee date palms (Phoenix dactylifera L.)”

✓ located verbatim in the source · abstract, characters 95–137 · show in text ↑
Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

GA3 and NAA produced the highest fruit physical characteristics except dimensions, without significant differences between the treatments.

Taxon
Phoenix dactylifera L.Phoenix dactyliferae1
Treatment
GA3 and NAA treatmentse0
Outcome
fruit physical characteristicse0
Direction
higheste0
Qualifier
except for the fruit dimensions in the two seasonse0

Not reportedComparator

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

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“GA3 and NAA treatments produced the highest value for each of all fruit physical characteristics without significant differences between them except for the fruit dimensions in the two seasons.”

✓ located verbatim in the source · abstract, characters 1299–1492 · show in text ↑
e1

“Barhee date palms (Phoenix dactylifera L.)”

✓ located verbatim in the source · abstract, characters 95–137 · show in text ↑
Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

Boric acid produced the highest seed weight, with no significant difference from the control and salicylic acid in the second season.

Taxon
Phoenix dactylifera L.Phoenix dactyliferae1
Treatment
boric acid treatmente0
Outcome
seed weighte0
Direction
higheste0
Qualifier
in the second season onlye0
Comparator
control and salicylic acid treatmentse0

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

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest seed weight was recorded for boric acid treatment in the two seasons, without significant difference with the control and salicylic acid treatments in the second season only.”

✓ located verbatim in the source · abstract, characters 1493–1679 · show in text ↑
e1

“Barhee date palms (Phoenix dactylifera L.)”

✓ located verbatim in the source · abstract, characters 95–137 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The control had the lowest physical fruit characteristics except seed weight in the second season.

Taxon
Phoenix dactylifera L.Phoenix dactyliferae1
Treatment
control treatmente0
Outcome
physical fruit characteristicse0
Direction
loweste0
Qualifier
except seed weight in the second seasone0

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

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the control treatment gained the lowest value for each of all physical fruit characteristics except seed weight in the second season.”

✓ located verbatim in the source · abstract, characters 1690–1823 · show in text ↑
e1

“Barhee date palms (Phoenix dactylifera L.)”

✓ located verbatim in the source · abstract, characters 95–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

GA3 and NAA yielded the highest TSS percentage and TSS to acid ratio.

Taxon
Phoenix dactylifera L.Phoenix dactyliferae1
Treatment
GA3 and NAA treatmentse0
Outcome
TSS% and TSS/acid ratioe0
Direction
higheste0

Not reportedComparator

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

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“GA3 and NAA treatments achieved the highest value of each TSS% and TSS/acid ratio”

✓ located verbatim in the source · abstract, characters 1824–1905 · show in text ↑
e1

“Barhee date palms (Phoenix dactylifera L.)”

✓ located verbatim in the source · abstract, characters 95–137 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

GA3 and NAA yielded the lowest peel carotene content.

Taxon
Phoenix dactylifera L.Phoenix dactyliferae1
Treatment
GA3 and NAA treatmentse0
Outcome
content of peel carotenee0
Direction
loweste0

Not reportedComparator

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

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“GA3 and NAA treatments achieved the highest value of each TSS% and TSS/acid ratio and the lowest content of peel carotene in the two seasons.”

✓ located verbatim in the source · abstract, characters 1824–1965 · show in text ↑
e1

“Barhee date palms (Phoenix dactylifera L.)”

✓ located verbatim in the source · abstract, characters 95–137 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Control, boric acid and salicylic acid had the highest fruit acidity percentage.

Taxon
Phoenix dactylifera L.Phoenix dactyliferae1
Treatment
control, boric acid and salicylic acid treatmentse0
Outcome
percentage of fruit aciditye0
Direction
higheste0

Not reportedComparator

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

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“each of the control, boric acid and salicylic acid treatments recorded the highest percentage of fruit acidity in the two seasons.”

✓ located verbatim in the source · abstract, characters 1972–2102 · show in text ↑
e1

“Barhee date palms (Phoenix dactylifera L.)”

✓ located verbatim in the source · abstract, characters 95–137 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Salicylic acid produced the highest chlorophyll content in fruit peel.

Taxon
Phoenix dactylifera L.Phoenix dactyliferae1
Treatment
salicylic acid treatmente0
Outcome
chlorophyll content in the fruit peele0
Direction
higheste0

Not reportedComparator

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

Phoenix dactylifera
Phoenix dactylifera · TaxonEJ Burns · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest chlorophyll content in the fruit peel was recorded for salicylic acid treatment.”

✓ located verbatim in the source · abstract, characters 2103–2195 · show in text ↑
e1

“Barhee date palms (Phoenix dactylifera L.)”

✓ located verbatim in the source · abstract, characters 95–137 · show in text ↑

1-naphthaleneacetic acid · quality: sugar starch · Phoenix dactylifera (date palm)Results differ

6 papers: 2 positive, 4 negative or no effect

1 paper in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. no effect
  3. no effect

2 papers more in this group

See all 6 papers →

Gibberellic acid · quality: sugar starch · Phoenix dactylifera (date palm)Positive and negative results

6 papers: 4 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive

2 papers more in this group

See all 6 papers →

Gibberellic acid · yield · Phoenix dactylifera (date palm)Positive and negative results

15 papers: 14 positive, 1 negative or no effect

13 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

11 papers more in this group

See all 15 papers →

boric acid · yield · Phoenix dactylifera (date palm)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

calcium atom · yield · Phoenix dactylifera (date palm)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

boron atom · yield · Phoenix dactylifera (date palm)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

1-naphthaleneacetic acid · yield · Phoenix dactylifera (date palm)Results agree

16 papers: 16 positive, 0 negative or no effect

15 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

12 papers more in this group

See all 16 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.