Abstract
Abstract Studies were conducted to determine the effect of a hydrophilic gel used as a medium amendment or root dip on plant response to moisture deficits. Tomato ( Lycopersicon esculentum Mill.) seedling roots were dipped in water or hydrophilic gel solution (7.4 g·liter −1 ) and planted in sand or a 1 sand : 1 very fine sandy loam mixture (v/v). Seedlings were also planted in the same medium amended with 3 kg·m −3 hydrophilic gel. Leaf water potentials and stomatal resistances were determined at various times after a final irrigation. Significantly greater leaf water potentials occurred in new transplants in sand amended with gel than in control or root-dipped plants. No effect on either leaf water potential or stomatal resistance was apparent for any treatment in finer textured soils. There were no treatment effects on plants exposed to the same gel treatment and allowed to establish for 2 weeks prior to withholding water.
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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 3
Claim · model-written summary
New tomato transplants in gel-amended sand had significantly greater leaf water potential than controls or root-dipped plants.
- Taxon
- Tomato
Solanum lycopersicume1 - Treatment
- sand amended with gele0
- Outcome
- leaf water potentialse0
- Direction
- greatere0
- Comparator
- control or root-dipped plantse0
- Setting
- sande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significantly greater leaf water potentials occurred in new transplants in sand amended with gel than in control or root-dipped plants.”
e1“Tomato ( Lycopersicon esculentum Mill.)”
Claim · model-written summary
In finer textured soils, treatments showed no apparent effect on leaf water potential or stomatal resistance.
- Taxon
- TomatoSolanum lycopersicume1
- Treatment
- any treatmente0
- Outcome
- leaf water potential or stomatal resistancee0
- Direction
- No effecte0
- Setting
- finer textured soilse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No effect on either leaf water potential or stomatal resistance was apparent for any treatment in finer textured soils.”
e1“Tomato ( Lycopersicon esculentum Mill.)”
Claim · model-written summary
After two weeks of establishment before withholding water, the gel treatment showed no plant treatment effects.
- Taxon
- TomatoSolanum lycopersicume1
- Treatment
- same gel treatmente0
- Outcome
- treatment effectse0
- Direction
- no treatment effectse0
- Qualifier
- 2 weeks prior to withholding watere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no treatment effects on plants exposed to the same gel treatment and allowed to establish for 2 weeks prior to withholding water.”
e1“Tomato ( Lycopersicon esculentum Mill.)”
The same questions in other papers
growing medium · physiology: water · Solanum lycopersicum (tomato)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
4 papers more in this group
See all 8 papers →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.