Paper · 2022 · Saudi Journal of Biological Sciences

Investigating the role of potassium and urea to control fruit drop and to improve fruit quality of “Dhakki” date palm

Shafi Ullah Khan; Atiq Ahmad Alizai; Nazeer Ahmed; et al.

6
claims
11
verbatim quotes
18
citations
3
research areas
✓
Open access · cc-by-nc-nd

Abstract

Fruit drop is a key issue with date palm cultivars that can be addressed with a variety of methods and strategies. Foliar application of macronutrients can be more effective in inhibiting fruit drop and improving the quality of date fruits. The current study was carried out to investigate the possible role of potassium (K) and urea to reduce fruit drop and improve the fruit quality of “Dhakki” date palm. It was conducted in a complete randomised block design with seven treatments and three replications at Pakistan's Agricultural Research Institute, Dera Ismail Khan. The treatments used were: (i) Control (distilled water spray); (ii) Potassium sulphate (K2SO4) at 1 %; (iii) K2SO4 at 1 % + Urea at 2 %; (iv) K2SO4 at 2 %; (v) K2SO4 at 2 % + Urea at 2 %; (vi) K2SO4 at 3 % and; (vii) K2SO4 at 3 % + Urea at 2 %. All the concentrations were sprayed at Kimri stage of fruit development during two consecutive growing seasons. Twenty-one date palms of equal size and age were chosen for the assessments to measure percent fruit drop and other physicochemical variables, including fruit length, fruit diameter, fruit weight, pulp percentage, yield/bundle, pH, total soluble solids (TSS), K content in fruit, and all sugars (percent) of harvested date fruit. The results revealed that bunch spray of K significantly affected all the parameters during both seasons. Application of K2SO4 alone and in combination with urea not only effectively reduced the fruit drop but also improved fruit quality in date where, K2SO4 applied at 2 % combined with urea was the best concentration in reducing fruit drop, enhancing other physicochemical attributes, and improving fruit quality of “Dhakki” date palm. This study may effectively contribute to reduce the fruit drop and enhance the fruit quality by using K and urea, enabling farmers to improve the date yield and increase economic growth.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 6

Intervention effectobservedoriginal resultmixedsignificant (as stated)measured

Claim · model-written summary

Potassium bunch spray significantly affected all assessed parameters in both seasons.

Taxon
date palmPhoenix dactyliferat0
Treatment
bunch spray of Ke0
Outcome
all the parameterse0
Qualifier
during both seasonse0

Not reportedComparatorDirection

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 results revealed that bunch spray of K significantly affected all the parameters during both seasons.”

✓ located verbatim in the source · abstract, characters 1260–1365 · show in text ↑
t0

“date palm”

✓ located verbatim in the source · title, characters 108–117 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium sulfate alone reduced date palm fruit drop.

Taxon
date palmPhoenix dactyliferat0
Treatment
K2SO4 alonee0
Outcome
fruit drope0
Direction
reducede0

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

“Application of K2SO4 alone and in combination with urea not only effectively reduced the fruit drop but also improved fruit quality in date”

✓ located verbatim in the source · abstract, characters 1366–1505 · show in text ↑
t0

“date palm”

✓ located verbatim in the source · title, characters 108–117 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium sulfate with urea reduced date palm fruit drop.

Taxon
date palmPhoenix dactyliferat0
Treatment
K2SO4 alone and in combination with ureae0
Outcome
fruit drope0
Direction
reducede0

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

“Application of K2SO4 alone and in combination with urea not only effectively reduced the fruit drop but also improved fruit quality in date”

✓ located verbatim in the source · abstract, characters 1366–1505 · show in text ↑
t0

“date palm”

✓ located verbatim in the source · title, characters 108–117 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium sulfate alone improved date palm fruit quality.

Taxon
date palmPhoenix dactyliferat0
Treatment
K2SO4 alonee0
Outcome
fruit qualitye0
Direction
improvede0

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

“Application of K2SO4 alone and in combination with urea not only effectively reduced the fruit drop but also improved fruit quality in date”

✓ located verbatim in the source · abstract, characters 1366–1505 · show in text ↑
t0

“date palm”

✓ located verbatim in the source · title, characters 108–117 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium sulfate with urea improved date palm fruit quality.

Taxon
date palmPhoenix dactyliferat0
Treatment
K2SO4 alone and in combination with ureae0
Outcome
fruit qualitye0
Direction
improvede0

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

“Application of K2SO4 alone and in combination with urea not only effectively reduced the fruit drop but also improved fruit quality in date”

✓ located verbatim in the source · abstract, characters 1366–1505 · show in text ↑
t0

“date palm”

✓ located verbatim in the source · title, characters 108–117 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 2% potassium sulfate plus urea treatment was best for reducing fruit drop and improving physicochemical attributes and quality.

Taxon
date palmPhoenix dactyliferae0
Material
“Dhakki”e0
Treatment
K2SO4 applied at 2 % combined with ureae0
Outcome
fruit drop, enhancing other physicochemical attributes, and improving fruit qualitye0
Direction
beste0

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

“K2SO4 applied at 2 % combined with urea was the best concentration in reducing fruit drop, enhancing other physicochemical attributes, and improving fruit quality of “Dhakki” date palm”

✓ located verbatim in the source · abstract, characters 1513–1697 · show in text ↑

potassium sulfate · quality: grain · 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 →

potassium sulfate · yield · Phoenix dactylifera (date palm)Results 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 →

nitrogen · quality: grain · Phoenix dactylifera (date palm)Results 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 →

nitrogen · yield · Phoenix dactylifera (date palm)Results agree

14 papers: 14 positive, 0 negative or no effect

13 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

10 papers more in this group

See all 14 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.