Abstract
Tomatoes ( Lycopersicon esculentum Mill. cv. Sunstart) were grown in a greenhouse during Summer 1999 and again in Winter 2000. Two available soil water (ASW) deficit thresholds, 65% and 80%, at which plants were irrigated to field capacity were factorially combined with five irrigation timing patterns: 1) no water stress; 2) stress throughout the entire growing season; 3) stress during first cluster flowering and fruit set 4) stress during first cluster fruit growth; and 5) stress during first cluster fruit ripening. Crop yields, water use efficiency, as well as maximum and minimum equatorial fruit diameters and fruit height were measured. Quality parameters of soluble solids, pH, and fruit color were also measured. Water stress throughout the growing season significantly reduced yield and fruit size, but plants stressed only during flowering showed fewer but bigger fruit than completely non-stressed plants. Consequently, on a weight basis the stressed at flowering and nonstressed plants had similar yields. Nonstressed and flowering-stressed fruit showed lower soluble solids and a lighter color of red ripe fruit than the other stress treatments. No significant differences in yield or quality were found between the two stress levels (65% vs. 80% ASW depletion before irrigation). Water stress only during flowering resulted in better yields and quality than stress at other specific developmental stages or at all times, but equal or poorer yields and water use efficiency than nonstressed plants.
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Claims 9
Claim · model-written summary
Water stress throughout the growing season significantly reduced tomato yield and fruit size.
- Taxon
- Tomatoes
Solanum lycopersicume0 - Treatment
- Water stress throughout the growing seasone2
- Outcome
- yield and fruit sizee2
- Direction
- reducede2
- Comparator
- no water stresse1
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes ( Lycopersicon esculentum Mill. cv. Sunstart) were grown in a greenhouse during Summer 1999 and again in Winter 2000”
e1“1) no water stress; 2) stress throughout the entire growing season”
e2“Water stress throughout the growing season significantly reduced yield and fruit size”
Claim · model-written summary
Stress only during flowering gave fewer tomato fruit than completely non-stressed plants.
- Taxon
- TomatoesSolanum lycopersicume0
- Treatment
- stressed only during floweringe3
- Outcome
- fruite3
- Direction
- fewere3
- Comparator
- completely non-stressed plantse3
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes ( Lycopersicon esculentum Mill. cv. Sunstart) were grown in a greenhouse during Summer 1999 and again in Winter 2000”
e3“plants stressed only during flowering showed fewer but bigger fruit than completely non-stressed plants”
Claim · model-written summary
Stress only during flowering gave bigger tomato fruit than completely non-stressed plants.
- Taxon
- TomatoesSolanum lycopersicume0
- Treatment
- stressed only during floweringe3
- Outcome
- fruite3
- Direction
- biggere3
- Comparator
- completely non-stressed plantse3
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes ( Lycopersicon esculentum Mill. cv. Sunstart) were grown in a greenhouse during Summer 1999 and again in Winter 2000”
e3“plants stressed only during flowering showed fewer but bigger fruit than completely non-stressed plants”
Claim · model-written summary
On a weight basis, stress at flowering gave tomato yields similar to nonstressed plants.
- Taxon
- TomatoesSolanum lycopersicume0
- Treatment
- stressed at floweringe4
- Outcome
- yieldse4
- Direction
- similare4
- Qualifier
- on a weight basise4
- Comparator
- nonstressed plantse4
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes ( Lycopersicon esculentum Mill. cv. Sunstart) were grown in a greenhouse during Summer 1999 and again in Winter 2000”
e4“on a weight basis the stressed at flowering and nonstressed plants had similar yields”
Claim · model-written summary
Flowering-stressed tomato fruit had lower soluble solids than the other stress treatments.
- Taxon
- TomatoesSolanum lycopersicume0
- Treatment
- flowering-stressed fruite5
- Outcome
- soluble solidse5
- Direction
- lowere5
- Comparator
- the other stress treatmentse5
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes ( Lycopersicon esculentum Mill. cv. Sunstart) were grown in a greenhouse during Summer 1999 and again in Winter 2000”
e5“Nonstressed and flowering-stressed fruit showed lower soluble solids and a lighter color of red ripe fruit than the other stress treatments”
Claim · model-written summary
Flowering-stressed tomato fruit had a lighter colour of red ripe fruit than the other stress treatments.
- Taxon
- TomatoesSolanum lycopersicume0
- Treatment
- flowering-stressed fruite5
- Outcome
- color of red ripe fruite5
- Direction
- lightere5
- Comparator
- the other stress treatmentse5
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes ( Lycopersicon esculentum Mill. cv. Sunstart) were grown in a greenhouse during Summer 1999 and again in Winter 2000”
e5“Nonstressed and flowering-stressed fruit showed lower soluble solids and a lighter color of red ripe fruit than the other stress treatments”
Claim · model-written summary
The two stress levels (65% and 80% ASW depletion) did not differ in tomato yield or quality.
- Taxon
- TomatoesSolanum lycopersicume0
- Treatment
- 65% vs. 80% ASW depletion before irrigatione6
- Outcome
- yield or qualitye6
- Direction
- no_changeinferrede6
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes ( Lycopersicon esculentum Mill. cv. Sunstart) were grown in a greenhouse during Summer 1999 and again in Winter 2000”
e6“No significant differences in yield or quality were found between the two stress levels (65% vs. 80% ASW depletion before irrigation)”
Claim · model-written summary
Water stress only during flowering gave better tomato yields and quality than stress at other developmental stages or at all times.
- Taxon
- TomatoesSolanum lycopersicume0
- Treatment
- Water stress only during floweringe7
- Outcome
- yields and qualitye7
- Direction
- bettere7
- Comparator
- stress at other specific developmental stages or at all timese7
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes ( Lycopersicon esculentum Mill. cv. Sunstart) were grown in a greenhouse during Summer 1999 and again in Winter 2000”
e7“Water stress only during flowering resulted in better yields and quality than stress at other specific developmental stages or at all times, but equal or poorer yields and water use efficiency than nonstressed plants”
Claim · model-written summary
Water stress only during flowering gave equal or poorer tomato yields and water use efficiency than nonstressed plants.
- Taxon
- TomatoesSolanum lycopersicume0
- Treatment
- Water stress only during floweringe7
- Outcome
- yields and water use efficiencye7
- Direction
- equal or poorere7
- Comparator
- nonstressed plantse7
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes ( Lycopersicon esculentum Mill. cv. Sunstart) were grown in a greenhouse during Summer 1999 and again in Winter 2000”
e7“Water stress only during flowering resulted in better yields and quality than stress at other specific developmental stages or at all times, but equal or poorer yields and water use efficiency than nonstressed plants”
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See all 31 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.