Abstract
SUMMARY In a field experiment sunflower plants were subjected to soil water stress (SWS) at — 15 bar during stages of slow elongation, rapid elongation, flowering and ripening. Significant decreases in yield, 100-seed weight and oil content were found as a result of SWS. The treatment resulted too in less evapotranspiration and a better water economy for production of seeds and oil. The iodine value but not the acid or saponification values of the oil was affected by SWS. No qualitative differences in oil composition occurred at different treatments. However, percentage of oleic acid was higher than that of linoleic acid; SWS resulted in a clear tendency for an increase in the ratio of oleic/linoleic acids especially for plants subjected to SWS during elongation stage. Sunflower plants were more sensitive to SWS during the elongation and flowering stages than during ripening stage
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Claims 12
Claim · model-written summary
Soil water stress significantly decreased sunflower yield.
- Taxon
- sunflower (Helianthus annuus L.)
Helianthus annuust0 - Treatment
- SWSe0
- Outcome
- yielde0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant decreases in yield, 100-seed weight and oil content were found as a result of SWS.”
t0“sunflower (Helianthus annuus L.)”
Claim · model-written summary
Soil water stress significantly decreased sunflower 100-seed weight.
- Taxon
- sunflower (Helianthus annuus L.)Helianthus annuust0
- Treatment
- SWSe0
- Outcome
- 100-seed weighte0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant decreases in yield, 100-seed weight and oil content were found as a result of SWS.”
t0“sunflower (Helianthus annuus L.)”
Claim · model-written summary
Soil water stress significantly decreased sunflower oil content.
- Taxon
- sunflower (Helianthus annuus L.)Helianthus annuust0
- Treatment
- SWSe0
- Outcome
- oil contente0
- Direction
- decreasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant decreases in yield, 100-seed weight and oil content were found as a result of SWS.”
t0“sunflower (Helianthus annuus L.)”
Claim · model-written summary
Soil water stress resulted in less evapotranspiration.
- Taxon
- sunflower (Helianthus annuus L.)Helianthus annuust0
- Treatment
- SWSe1
- Outcome
- evapotranspiratione0
- Direction
- lesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment resulted too in less evapotranspiration and a better water economy for production of seeds and oil.”
e1“Significant decreases in yield, 100-seed weight and oil content were found as a result of SWS.”
t0“sunflower (Helianthus annuus L.)”
Claim · model-written summary
Soil water stress resulted in better water economy for production of seeds and oil.
- Taxon
- sunflower (Helianthus annuus L.)Helianthus annuust0
- Treatment
- SWSe1
- Outcome
- water economy for production of seeds and oile0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment resulted too in less evapotranspiration and a better water economy for production of seeds and oil.”
e1“Significant decreases in yield, 100-seed weight and oil content were found as a result of SWS.”
t0“sunflower (Helianthus annuus L.)”
Claim · model-written summary
Soil water stress affected oil iodine value.
- Taxon
- sunflower (Helianthus annuus L.)Helianthus annuust0
- Treatment
- SWSe0
- Outcome
- iodine valuee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The iodine value but not the acid or saponification values of the oil was affected by SWS.”
t0“sunflower (Helianthus annuus L.)”
Claim · model-written summary
Soil water stress did not affect oil acid.
- Taxon
- sunflower (Helianthus annuus L.)Helianthus annuust0
- Treatment
- SWSe0
- Outcome
- acide0
- Direction
- note0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The iodine value but not the acid or saponification values of the oil was affected by SWS.”
t0“sunflower (Helianthus annuus L.)”
Claim · model-written summary
Soil water stress did not affect oil saponification values.
- Taxon
- sunflower (Helianthus annuus L.)Helianthus annuust0
- Treatment
- SWSe0
- Outcome
- saponification valuese0
- Direction
- note0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The iodine value but not the acid or saponification values of the oil was affected by SWS.”
t0“sunflower (Helianthus annuus L.)”
Claim · model-written summary
Oil composition showed no qualitative differences among treatments.
- Taxon
- sunflower (Helianthus annuus L.)Helianthus annuust0
- Treatment
- SWSe1
- Outcome
- qualitative differences in oil compositione0
- Direction
- No qualitative differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No qualitative differences in oil composition occurred at different treatments.”
e1“Significant decreases in yield, 100-seed weight and oil content were found as a result of SWS.”
t0“sunflower (Helianthus annuus L.)”
Claim · model-written summary
The percentage of oleic acid exceeded that of linoleic acid.
- Taxon
- sunflower (Helianthus annuus L.)Helianthus annuust0
- Outcome
- percentage of oleic acide0
- Direction
- highere0
- Comparator
- linoleic acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“percentage of oleic acid was higher than that of linoleic acid”
t0“sunflower (Helianthus annuus L.)”
Claim · model-written summary
Soil water stress tended to increase the oleic to linoleic acid ratio, especially during elongation.
- Taxon
- sunflower (Helianthus annuus L.)Helianthus annuust0
- Treatment
- SWSe0
- Outcome
- ratio of oleic/linoleic acidse0
- Direction
- increasee0
- Qualifier
- especially for plants subjected to SWS during elongation stagee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SWS resulted in a clear tendency for an increase in the ratio of oleic/linoleic acids especially for plants subjected to SWS during elongation stage.”
t0“sunflower (Helianthus annuus L.)”
Claim · model-written summary
Sunflower plants were more sensitive to soil water stress during elongation and flowering than ripening.
- Taxon
- Sunflower plantsHelianthus annuuse0
- Organ / stage
- elongation and flowering stagese0
- Treatment
- SWSe0
- Outcome
- sensitive to SWSe0
- Direction
- more sensitivee0
- Comparator
- ripening stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sunflower plants were more sensitive to SWS during the elongation and flowering stages than during ripening stage”
The same questions in other papers
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- no effect
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See all 75 papers →drought · soil: physics · Helianthus annuus (common sunflower)Results agree
3 papers in the same direction as this paper
- negative
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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.