Abstract
ABSTRACT: This study evaluated the effects of sustained deficit irrigation (SDI) on fruit yield and fruit water quality of dwarf green coconut trees. The experiment was carried out in a commercial orchard located in Camocim, Ceará, Brazil. Four years old coconut trees were irrigated during 29 months, using micro-sprinklers, at irrigation depths equivalent to 55%, 77%, 100% and 131% of crop evapotranspiration (ETc). Green coconut fruits were harvested six months after flower aperture and evaluated for number of fruits per plant, volume of coconut water per fruit and total soluble solids of the coconut water. SDI reduced coconut fruit yield, fruit water volume and coconut water yield. Conversely, SDI increased total soluble solids of the coconut water and irrigation water productivity in terms of fruits and coconut water. Deficit irrigation showed no economic advantage over full irrigation due to the small reduction in irrigation costs compared to the substantial reduction in gross revenue.
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Claims 6
Claim · model-written summary
Deficit irrigation reduced coconut fruit yield.
Not reportedComparator
Verbatim
e0“SDI reduced coconut fruit yield, fruit water volume and coconut water yield.”
Claim · model-written summary
Deficit irrigation reduced fruit water volume.
Not reportedComparator
Verbatim
e0“SDI reduced coconut fruit yield, fruit water volume and coconut water yield.”
t0“coconut”
Claim · model-written summary
Deficit irrigation reduced coconut water yield.
Not reportedComparator
Verbatim
e0“SDI reduced coconut fruit yield, fruit water volume and coconut water yield.”
Claim · model-written summary
Deficit irrigation increased coconut water soluble solids.
Not reportedComparator
Verbatim
e0“SDI increased total soluble solids of the coconut water and irrigation water productivity in terms of fruits and coconut water.”
Claim · model-written summary
Deficit irrigation increased irrigation water productivity for fruits and coconut water.
- Taxon
- coconute0
- Treatment
- SDIe0
- Outcome
- irrigation water productivity in terms of fruits and coconut watere0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“SDI increased total soluble solids of the coconut water and irrigation water productivity in terms of fruits and coconut water.”
Claim · model-written summary
Deficit irrigation had no economic advantage over full irrigation.
Verbatim
e0“Deficit irrigation showed no economic advantage over full irrigation due to the small reduction in irrigation costs compared to the substantial reduction in gross revenue.”
t0“coconut”
The same questions in other papers
irrigation · yield · Cocos nucifera (coconut palm)Positive and negative results
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irrigation · physiology: water · Cocos nucifera (coconut palm)Results agree
1 paper in the same direction as this paper
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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.