Abstract
Drought is the most serious problem in agriculture wide world, especially in arid and semiarid regions. Application of soil conditioners could increase water retention and decrease leaching of water and fertilizers from the soil. This study was conducted on Jerusalem artichoke (JA) cv. Fuseau in Baramoon Research Station, Dakahlia Governorate, Egypt during the growing seasons of 2013-2014. Two irrigation regimes (10 and 20 days’ intervals starting after 1st irrigation) in combination with compost, humic acid and superabsorbent polymer (SAP) were evaluated to increase irrigation efficiency under drought stress. The vegetative growth parameters, water status, marketable and total tuber yield, dry matter production, inulin yield, nitrogen and proline contents and water use efficiency of JA plants were investigated. Under drought stress (irrigation at 20 days), all the studied parameters except for leaf water deficit, proline content and water use efficiency (WUE) tend to decrease in both seasons. Dual application of SAP with compost or humic acid led to significant increases in all studied criteria, compared to check or other treatments. Under normal irrigation period (10 days’ intervals), all tested criteria were found to be significant, especially at application of compost as soil amendments, in both seasons. Additionally, incorporating SAP dually with compost or humic acid under deficient irrigation water improved WUE and decreased water requirement by 50%. Also, the tuber yield and physiological quality characters were found to be equivalent to the control treatment under normal irrigation conditions. This in turn encourages such amendments to reduce water consumption.
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Claims 10
Claim · model-written summary
Twenty-day irrigation tended to reduce most measured growth, yield and physiological traits in both seasons.
- Taxon
- Jerusalem artichoke
.jpg?width=60)
Helianthus tuberosust0 - Treatment
- irrigation at 20 dayse0
- Outcome
- all the studied parameters except for leaf water deficit, proline content and water use efficiency (WUE)e0
- Direction
- decreasee0
- Qualifier
- in both seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Under drought stress (irrigation at 20 days), all the studied parameters except for leaf water deficit, proline content and water use efficiency (WUE) tend to decrease in both seasons”
t0“Jerusalem artichoke”
Claim · model-written summary
Dual SAP and compost application significantly increased the studied criteria versus checks or other treatments.
- Taxon
- Jerusalem artichokeHelianthus tuberosust0
- Treatment
- SAP with composte0
- Outcome
- all studied criteriae0
- Direction
- increasese0
- Comparator
- check or other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dual application of SAP with compost or humic acid led to significant increases in all studied criteria, compared to check or other treatments”
t0“Jerusalem artichoke”
Claim · model-written summary
Dual SAP and humic acid application significantly increased the studied criteria versus checks or other treatments.
- Taxon
- Jerusalem artichokeHelianthus tuberosust0
- Treatment
- SAP with compost or humic acide0
- Outcome
- all studied criteriae0
- Direction
- increasese0
- Comparator
- check or other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dual application of SAP with compost or humic acid led to significant increases in all studied criteria, compared to check or other treatments”
t0“Jerusalem artichoke”
Claim · model-written summary
Compost application under ten-day irrigation produced significant results across tested criteria in both seasons.
- Taxon
- Jerusalem artichokeHelianthus tuberosust0
- Treatment
- compost as soil amendmentse0
- Outcome
- all tested criteriae0
- Qualifier
- in both seasonse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under normal irrigation period (10 days’ intervals), all tested criteria were found to be significant, especially at application of compost as soil amendments, in both seasons”
t0“Jerusalem artichoke”
Claim · model-written summary
Under deficient irrigation, SAP with compost improved water use efficiency.
- Taxon
- Jerusalem artichokeHelianthus tuberosust0
- Treatment
- SAP dually with composte0
- Outcome
- WUEe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“incorporating SAP dually with compost or humic acid under deficient irrigation water improved WUE and decreased water requirement by 50%”
t0“Jerusalem artichoke”
Claim · model-written summary
Under deficient irrigation, SAP with humic acid improved water use efficiency.
- Taxon
- Jerusalem artichokeHelianthus tuberosust0
- Treatment
- SAP dually with compost or humic acide0
- Outcome
- WUEe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“incorporating SAP dually with compost or humic acid under deficient irrigation water improved WUE and decreased water requirement by 50%”
t0“Jerusalem artichoke”
Claim · model-written summary
The dual amendments decreased water requirement by 50%.
- Taxon
- Jerusalem artichokeHelianthus tuberosust0
- Treatment
- SAP dually with compost or humic acide0
- Outcome
- water requiremente0
- Direction
- decreasede0
- Value
- 50%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“incorporating SAP dually with compost or humic acid under deficient irrigation water improved WUE and decreased water requirement by 50%”
t0“Jerusalem artichoke”
Claim · model-written summary
Tuber yield under deficient irrigation with amendments was equivalent to normally irrigated controls.
- Taxon
- Jerusalem artichokeHelianthus tuberosust0
- Outcome
- tuber yielde0
- Direction
- equivalente0
- Comparator
- control treatment under normal irrigation conditionse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the tuber yield and physiological quality characters were found to be equivalent to the control treatment under normal irrigation conditions”
t0“Jerusalem artichoke”
Claim · model-written summary
Physiological quality under deficient irrigation with amendments was equivalent to normally irrigated controls.
- Taxon
- Jerusalem artichokeHelianthus tuberosust0
- Outcome
- physiological quality characterse0
- Direction
- equivalente0
- Comparator
- control treatment under normal irrigation conditionse0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the tuber yield and physiological quality characters were found to be equivalent to the control treatment under normal irrigation conditions”
t0“Jerusalem artichoke”
Claim · model-written summary
The authors encourage these amendments to reduce water consumption.
- Taxon
- Jerusalem artichokeHelianthus tuberosust0
- Treatment
- such amendmentse0
- Outcome
- reduce water consumptione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This in turn encourages such amendments to reduce water consumption”
t0“Jerusalem artichoke”
The same questions in other papers
irrigation · physiology: water · Helianthus tuberosus (Jerusalem artichoke)Positive and negative results
1 in the opposite direction
- 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.