Abstract
ABSTRACT A field experiment was conducted in the western part of Saudi Arabia to optimize irrigation water use (IWU), yields and quality of the 'Nabbut‐Saif' date palm grown in sandy loam soil under arid conditions. Four water regimes were investigated. The supplied amounts of irrigation water were 50, 65, 82 and 100% of date palm water requirements to the first (W1), second (W2), third (W3) and fourth (W4) water regimes, respectively. The daily water requirement was calculated using the Penman–Montieth equation for dry climates and applied to the trees three times a week through a drip irrigation system. Results indicated that giving 65% of total date palm water requirement maximized date yield by producing 46.1 kg per tree and resulted in the best IWU (0.8 m 3 kg −1 per tree). Increasing the water regime to 82 and 100% of total water requirement produced only 45.5 and 46 kg per tree respectively and reduced IWU. Generally, fruit quality characteristics were insignificantly affected by the water regimes investigated. The results suggested that supplying 34 m 3 yr −1 per tree for date palms grown under the conditions of the western part of Saudi Arabia is enough to maximize IWU, yield and quality of the 'Nabbut‐Saif' date palm cultivar. Copyright © 2014 John Wiley & Sons, Ltd.
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 7
Claim · model-written summary
Supplying 65% of water requirement maximized yield at 46.1 kg per tree.
- Taxon
- date palm
Phoenix dactyliferae0 - Treatment
- 65% of total date palm water requiremente0
- Outcome
- date yielde0
- Direction
- maximizede0
- Value
- 46.1 kg per treee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“giving 65% of total date palm water requirement maximized date yield by producing 46.1 kg per tree”
Claim · model-written summary
The 65% regime gave the best irrigation water use at 0.8 m3 per kg per tree.
- Taxon
- date palmPhoenix dactyliferae0
- Treatment
- 65% of total date palm water requiremente0
- Outcome
- IWUe0
- Direction
- beste0
- Value
- 0.8 m 3 kg −1 per treee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“giving 65% of total date palm water requirement maximized date yield by producing 46.1 kg per tree and resulted in the best IWU (0.8 m 3 kg −1 per tree)”
Claim · model-written summary
The 82% regime produced 45.5 kg per tree.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the water regime to 82 and 100% of total water requirement produced only 45.5 and 46 kg per tree respectively”
e1“date palm grown in sandy loam soil”
Claim · model-written summary
The 100% regime produced 46 kg per tree.
- Taxon
- date palmPhoenix dactyliferae1
- Treatment
- 100% of total water requiremente0
- Outcome
- producede0
- Direction
- onlye0
- Value
- 46 kg per treee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the water regime to 82 and 100% of total water requirement produced only 45.5 and 46 kg per tree respectively”
e1“date palm grown in sandy loam soil”
Claim · model-written summary
Increasing irrigation to 82% and 100% reduced irrigation water use.
- Taxon
- date palmPhoenix dactyliferae1
- Treatment
- 82 and 100% of total water requiremente0
- Outcome
- IWUe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the water regime to 82 and 100% of total water requirement produced only 45.5 and 46 kg per tree respectively and reduced IWU”
e1“date palm grown in sandy loam soil”
Claim · model-written summary
Fruit quality did not differ significantly across water regimes.
- Taxon
- date palmPhoenix dactyliferae1
- Treatment
- water regimes investigatede0
- Outcome
- fruit quality characteristicse0
- Direction
- insignificantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit quality characteristics were insignificantly affected by the water regimes investigated”
e1“date palm grown in sandy loam soil”
Claim · model-written summary
The authors recommend 34 m3 yearly per tree to maximize irrigation water use, yield and quality.
- Taxon
- date palmsPhoenix dactyliferae0
- Material
- Nabbut‐Saife0
- Outcome
- supplying 34 m 3 yr −1 per treee0
- Setting
- western part of Saudi Arabiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“supplying 34 m 3 yr −1 per tree for date palms grown under the conditions of the western part of Saudi Arabia is enough to maximize IWU, yield and quality of the ‘Nabbut‐Saif’ date palm cultivar”
The same questions in other papers
irrigation · quality: grain · Phoenix dactylifera (date palm)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
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.