Abstract
The effect of foliar spray with algae extract and/or potassium nitrate on the quantity and quality of Barhee date palm yields was investigated during the 2017 and 2018 seasons. Inflorescences of Barhee date palms were sprayed twice, after pollination (1st April of each season) and one month later, with algae extract at concentrations of 0.5% and 1.0% and with potassium nitrate at concentrations of 1% and 2% applied individually or in combinations. The obtained results showed that all of the sprayed treatments enhanced the yield and fruit properties when compared to the controls. Spraying inflorescences of Barhee date palms with algae extract and/or potassium nitrate had a significant effect on the yield and on the physical and chemical properties of the fruit when compared with the untreated palms. The increase in yield and qualitative properties was associated with increasing concentrations of both materials (algae extract and potassium nitrate). The best results were detected with spray containing high rates of combined treatment (1% algae extract + 2% potassium nitrate) applied twice in both seasons studied because this treatment resulted in the highest value of fruit and bunch weight, increased the yield per palm compared to the control by about 60.2%, and improved the fruit physical properties (fruit length, fruit diameter, fruit shape index, flesh weight, and seed weight) and fruit chemical properties (total soluble solids (TSS); acidity; TSS/acid ratio; tannins; and reducing, nonreducing, and total sugars) of the Barhee date palm given the experimental conditions.
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Claims 9
Claim · model-written summary
Sprayed treatments enhanced yield and fruit properties relative to controls.
Verbatim
e0“all of the sprayed treatments enhanced the yield and fruit properties when compared to the controls”
t0“Barhee Date Palms”
Claim · model-written summary
Yield and fruit physical and chemical properties differed significantly under algae extract and/or potassium nitrate spray.
- Taxon
- Barhee date palmse0
- Treatment
- Spraying inflorescences of Barhee date palms with algae extract and/or potassium nitratee0
- Outcome
- yield and on the physical and chemical properties of the fruite0
- Comparator
- untreated palmse0
Not reportedDirection
Verbatim
e0“Spraying inflorescences of Barhee date palms with algae extract and/or potassium nitrate had a significant effect on the yield and on the physical and chemical properties of the fruit when compared with the untreated palms”
Claim · model-written summary
Yield and qualitative properties rose with higher concentrations of both sprays.
Verbatim
e0“The increase in yield and qualitative properties was associated with increasing concentrations of both materials (algae extract and potassium nitrate)”
t0“Barhee Date Palms”
Claim · model-written summary
Combined 1% algae extract and 2% potassium nitrate yielded the highest fruit and bunch weights.
- Taxon
- Barhee Date Palmst0
- Treatment
- 1% algae extract + 2% potassium nitratee0
- Outcome
- fruit and bunch weighte0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“high rates of combined treatment (1% algae extract + 2% potassium nitrate) applied twice in both seasons studied because this treatment resulted in the highest value of fruit and bunch weight”
t0“Barhee Date Palms”
Claim · model-written summary
Combined spray increased yield per palm about 60.2% versus control.
Verbatim
e0“1% algae extract + 2% potassium nitrate) applied twice in both seasons studied because this treatment resulted in the highest value of fruit and bunch weight, increased the yield per palm compared to the control by about 60.2%”
t0“Barhee Date Palms”
Claim · model-written summary
Combined spray improved fruit length, diameter and shape index.
- Treatment
- 1% algae extract + 2% potassium nitratee0
- Outcome
- fruit length, fruit diameter, fruit shape indexe0
- Direction
- improvede0
Not reportedTaxonComparator
Verbatim
e0“1% algae extract + 2% potassium nitrate) applied twice in both seasons studied because this treatment resulted in the highest value of fruit and bunch weight, increased the yield per palm compared to the control by about 60.2%, and improved the fruit physical properties (fruit length, fruit diameter, fruit shape index, flesh weight, and seed weight)”
Claim · model-written summary
Combined spray improved fruit flesh and seed weights.
Not reportedTreatmentComparator
Verbatim
e0“improved the fruit physical properties (fruit length, fruit diameter, fruit shape index, flesh weight, and seed weight)”
t0“Barhee Date Palms”
Claim · model-written summary
Combined spray improved fruit TSS, acidity and TSS/acid ratio.
- Taxon
- Barhee Date Palmst0
- Outcome
- total soluble solids (TSS); acidity; TSS/acid ratioe0
- Direction
- improvede0
Not reportedTreatmentComparator
Verbatim
e0“improved the fruit physical properties (fruit length, fruit diameter, fruit shape index, flesh weight, and seed weight) and fruit chemical properties (total soluble solids (TSS); acidity; TSS/acid ratio; tannins; and reducing, nonreducing, and total sugars)”
t0“Barhee Date Palms”
Claim · model-written summary
Combined spray improved tannins and reducing and nonreducing sugars.
- Taxon
- Barhee Date Palmst0
- Outcome
- tannins; and reducing, nonreducing, and total sugarse0
- Direction
- improvede0
Not reportedTreatmentComparator
Verbatim
e0“improved the fruit physical properties (fruit length, fruit diameter, fruit shape index, flesh weight, and seed weight) and fruit chemical properties (total soluble solids (TSS); acidity; TSS/acid ratio; tannins; and reducing, nonreducing, and total sugars)”
t0“Barhee Date Palms”
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