Abstract
Date palm (Phoenix dactylifera L.) is an important crop in arid regions, providing significant economic and nutritional value. The yield and quality of date fruits can be influenced by various agricultural practices, including the application of plant growth regulators (PGRs). Gibberellic acid (GA3) and CPPU (N-(2-chloro-4-pyridyl)-N-phenylurea), a synthetic cytokinin, are among the growth regulators known to improve fruit size, weight, and overall quality. GA3 and CPPU, both separately and in combination with potassium citrate (45%), were applied to Ferehy date palms to assess their effects on fruit yield and quality. Bunches were sprayed with GA3 (20–80 ppm), CPPU (5–20 ppm), and potassium citrate at two stages after pollination, one and two months post-pollination. The results revealed that the combined application of GA3 and CPPU significantly increased yield, bunch weight, and fruit quality compared to untreated control palms. Specifically, treated bunches showed improvements in fruit weight, diameter, height, flesh percentage, total soluble solids, and total sugars, while seed percentage, total acidity, and crude fiber were reduced. Although both GA3 and CPPU were effective when applied separately, GA3 was more effective in improving all measured parameters. Based on these findings, applying a combination of GA3 at 80 ppm and CPPU at 20 ppm, twice after pollination, is recommended to optimize yield and fruit quality in Ferehy date palms
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 10
Claim · model-written summary
Combined GA3 and CPPU increased yield relative to untreated palms.
- Taxon
- Date palm
Phoenix dactyliferat0 - Material
- Ferehye1
- Treatment
- combined application of GA3 and CPPUe0
- Outcome
- yielde0
- Direction
- increasede0
- Comparator
- untreated control palmse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combined application of GA3 and CPPU significantly increased yield, bunch weight, and fruit quality compared to untreated control palms”
t0“Date Palm Cultivar”
e1“applying a combination of GA3 at 80 ppm and CPPU at 20 ppm, twice after pollination, is recommended to optimize yield and fruit quality in Ferehy date palms”
Claim · model-written summary
Combined GA3 and CPPU increased bunch weight.
- Taxon
- Date palmPhoenix dactyliferat0
- Treatment
- combined application of GA3 and CPPUe0
- Outcome
- bunch weighte0
- Direction
- increasede0
- Comparator
- untreated control palmse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combined application of GA3 and CPPU significantly increased yield, bunch weight, and fruit quality compared to untreated control palms”
t0“Date Palm Cultivar”
Claim · model-written summary
Combined GA3 and CPPU increased fruit quality.
- Taxon
- Date palmPhoenix dactyliferat0
- Treatment
- combined application of GA3 and CPPUe0
- Outcome
- fruit qualitye0
- Direction
- increasede0
- Comparator
- untreated control palmse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combined application of GA3 and CPPU significantly increased yield, bunch weight, and fruit quality compared to untreated control palms”
t0“Date Palm Cultivar”
Claim · model-written summary
Treated bunches had improved fruit weight, diameter and height.
- Taxon
- Date palmPhoenix dactyliferat0
- Treatment
- treated bunchese0
- Outcome
- fruit weight, diameter, heighte0
- Direction
- improvementse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treated bunches showed improvements in fruit weight, diameter, height, flesh percentage, total soluble solids, and total sugars”
t0“Date Palm Cultivar”
Claim · model-written summary
Treated bunches had improved flesh percentage, soluble solids and sugars.
- Taxon
- Date palmPhoenix dactyliferat0
- Treatment
- treated bunchese0
- Outcome
- flesh percentage, total soluble solids, and total sugarse0
- Direction
- improvementse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treated bunches showed improvements in fruit weight, diameter, height, flesh percentage, total soluble solids, and total sugars”
t0“Date Palm Cultivar”
Claim · model-written summary
Treated bunches had reduced seed percentage, acidity and crude fiber.
- Taxon
- Date palmPhoenix dactyliferat0
- Treatment
- treated bunchese1
- Outcome
- seed percentage, total acidity, and crude fibere0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed percentage, total acidity, and crude fiber were reduced”
t0“Date Palm Cultivar”
e1“treated bunches showed improvements in fruit weight, diameter, height, flesh percentage, total soluble solids, and total sugars”
Claim · model-written summary
GA3 applied alone improved measured parameters.
- Taxon
- Date palmPhoenix dactyliferat0
- Treatment
- GA3e0
- Outcome
- effectivee0
- Direction
- effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both GA3 and CPPU were effective when applied separately”
t0“Date Palm Cultivar”
Claim · model-written summary
CPPU applied alone improved measured parameters.
- Taxon
- Date palmPhoenix dactyliferat0
- Treatment
- CPPUe0
- Outcome
- effectivee0
- Direction
- effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both GA3 and CPPU were effective when applied separately”
t0“Date Palm Cultivar”
Claim · model-written summary
GA3 was more effective than CPPU across measured parameters.
- Taxon
- Date palmPhoenix dactyliferat0
- Treatment
- GA3e0
- Outcome
- all measured parameterse0
- Direction
- more effectivee0
- Comparator
- CPPUe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 was more effective in improving all measured parameters”
t0“Date Palm Cultivar”
e1“both GA3 and CPPU were effective when applied separately”
Claim · model-written summary
The authors recommend GA3 at 80 ppm and CPPU at 20 ppm applied twice after pollination.
- Taxon
- date palmsPhoenix dactyliferae0
- Material
- Ferehye0
- Outcome
- applying a combination of GA3 at 80 ppm and CPPU at 20 ppm, twice after pollinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying a combination of GA3 at 80 ppm and CPPU at 20 ppm, twice after pollination, is recommended to optimize yield and fruit quality in Ferehy date palms”
The same questions in other papers
Gibberellic acid · yield · Phoenix dactylifera (date palm)Positive and negative results
13 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
11 papers more in this group
See all 15 papers →forchlorfenuron · yield · Phoenix dactylifera (date palm)Results agree
1 paper in the same direction as this paper
- positive
Gibberellic acid · quality: grain · Phoenix dactylifera (date palm)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.