Abstract
The effects of GA3 and CPPU on fruiting of Seewy date palm grown at the Experimental Orchard, Faculty of Agriculture, Assiut University, Egypt were investigated during 2013, 2014 and 2015 seasons. All treatments were sprayed after two or eight weeks of pollination. The experiment was set up in a complete randomized block design with five replications of one bunch each. The obtained results could be summarized as follow: - Fruit set and fruit retention percentage were significantly decreased due to spray GA3 at 50 ppm after two weeks of pollination followed by GA3 or CPPU after eight weeks of pollination compared to unsprayed one (control). - Spraying the bunch with GA3 twice, once at 50 ppm after two weeks of pollination followed once GA3 at 75 ppm plus CPPU at 7.5 or 15 ppm after eight weeks of pollination gave the highest fruit weight, flesh percentage and dimention of fruits compared to unsprayed ones. - Spraying GA3 and CPPU significantly improved the chemical fruit properties in terms of the total soluble solids and sugar contents and significantly decreased the total acidity and total soluble tannins percentages compared to unsprayed ones. So, it concluded that spray GA3 at 50 ppm after two weeks of pollination plus either GA3 at 75 ppm and CPPU at 7.5 ppm or GA3 at 75 ppm and CPPU at 15 ppm to obtain the high yield with good quality of Seewy dates. GA3 reduce the fruit retention and consequently increase the fruit weight and size induce increased the yield. CPPU induced an increase in fruit weight and size then get high yield of Seewy dates. Thus, spraying the bunches of Seewy date palm with GA3 and CPPU had get the heaviest yield with improvement the physical and tested chemical fruit properties.
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Claims 10
Claim · model-written summary
The two stage spray treatment significantly decreased fruit set.
- Taxon
- date palm
Phoenix dactyliferat0 - Treatment
- spray GA3 at 50 ppm after two weeks of pollination followed by GA3 or CPPU after eight weeks of pollinatione0
- Outcome
- Fruit sete0
- Direction
- decreasede0
- Comparator
- unsprayed one (control)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit set and fruit retention percentage were significantly decreased due to spray GA3 at 50 ppm after two weeks of pollination followed by GA3 or CPPU after eight weeks of pollination compared to unsprayed one (control)”
t0“Seewy Date Palm”
Claim · model-written summary
The two stage spray treatment significantly decreased fruit retention.
- Taxon
- date palmPhoenix dactyliferat0
- Treatment
- spray GA3 at 50 ppm after two weeks of pollination followed by GA3 or CPPU after eight weeks of pollinatione0
- Outcome
- fruit retention percentagee0
- Direction
- decreasede0
- Comparator
- unsprayed one (control)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit set and fruit retention percentage were significantly decreased due to spray GA3 at 50 ppm after two weeks of pollination followed by GA3 or CPPU after eight weeks of pollination compared to unsprayed one (control)”
t0“Seewy Date Palm”
Claim · model-written summary
The GA3 then GA3 plus CPPU spray regimen gave the highest fruit weight, flesh percentage and dimensions.
- Taxon
- date palmPhoenix dactyliferat0
- Treatment
- GA3 at 75 ppm plus CPPU at 7.5 or 15 ppme0
- Outcome
- fruit weight, flesh percentage and dimention of fruitse0
- Direction
- higheste0
- Comparator
- unsprayed onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying the bunch with GA3 twice, once at 50 ppm after two weeks of pollination followed once GA3 at 75 ppm plus CPPU at 7.5 or 15 ppm after eight weeks of pollination gave the highest fruit weight, flesh percentage and dimention of fruits compared to unsprayed ones”
t0“Seewy Date Palm”
Claim · model-written summary
GA3 and CPPU sprays significantly improved soluble solids and sugar contents.
- Taxon
- date palmPhoenix dactyliferat0
- Treatment
- Spraying GA3 and CPPUe0
- Outcome
- total soluble solids and sugar contentse0
- Direction
- improvede0
- Comparator
- unsprayed onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying GA3 and CPPU significantly improved the chemical fruit properties in terms of the total soluble solids and sugar contents and significantly decreased the total acidity and total soluble tannins percentages compared to unsprayed ones”
t0“Seewy Date Palm”
Claim · model-written summary
GA3 and CPPU sprays significantly reduced total acidity and soluble tannins.
- Taxon
- date palmPhoenix dactyliferat0
- Treatment
- Spraying GA3 and CPPUe0
- Outcome
- total acidity and total soluble tannins percentagese0
- Direction
- decreasede0
- Comparator
- unsprayed onese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spraying GA3 and CPPU significantly improved the chemical fruit properties in terms of the total soluble solids and sugar contents and significantly decreased the total acidity and total soluble tannins percentages compared to unsprayed ones”
t0“Seewy Date Palm”
Claim · model-written summary
The authors recommend GA3 at 50 ppm followed by GA3 at 75 ppm and CPPU at 7.5 ppm for high yield and quality.
- Taxon
- date palmPhoenix dactyliferat0
- Treatment
- GA3 at 50 ppm after two weeks of pollination plus either GA3 at 75 ppm and CPPU at 7.5 ppme0
- Outcome
- high yield with good qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spray GA3 at 50 ppm after two weeks of pollination plus either GA3 at 75 ppm and CPPU at 7.5 ppm or GA3 at 75 ppm and CPPU at 15 ppm to obtain the high yield with good quality of Seewy dates”
t0“Seewy Date Palm”
Claim · model-written summary
The authors also recommend GA3 at 50 ppm followed by GA3 at 75 ppm and CPPU at 15 ppm.
- Taxon
- date palmPhoenix dactyliferat0
- Treatment
- GA3 at 75 ppm and CPPU at 15 ppme0
- Outcome
- high yield with good qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spray GA3 at 50 ppm after two weeks of pollination plus either GA3 at 75 ppm and CPPU at 7.5 ppm or GA3 at 75 ppm and CPPU at 15 ppm to obtain the high yield with good quality of Seewy dates”
t0“Seewy Date Palm”
Claim · model-written summary
The authors attribute increased fruit weight, size and yield to reduced fruit retention from GA3.
- Taxon
- date palmPhoenix dactyliferat0
- Treatment
- GA3e0
- Outcome
- fruit weight and sizee0
- Direction
- increasee0
- Qualifier
- reduce the fruit retentione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 reduce the fruit retention and consequently increase the fruit weight and size induce increased the yield”
t0“Seewy Date Palm”
Claim · model-written summary
The authors attribute increased fruit weight, size and yield to CPPU.
- Taxon
- date palmPhoenix dactyliferat0
- Treatment
- CPPUe0
- Outcome
- fruit weight and sizee0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CPPU induced an increase in fruit weight and size then get high yield of Seewy dates”
t0“Seewy Date Palm”
Claim · model-written summary
GA3 and CPPU spraying produced the heaviest yield and improved physical and chemical fruit properties.
Not reportedComparator
Verbatim
e0“spraying the bunches of Seewy date palm with GA3 and CPPU had get the heaviest yield with improvement the physical and tested chemical fruit properties”
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