Paper · 2020 · Mechanization in agriculture & Conserving of the resources

Sunflower irrigation in conditions of water deficit

R. Kireva

4
claims
8
verbatim quotes
0
citations
3
research areas
—
Not open access

Abstract

An analysis has been made of the research work to determine the impact of water deficit on the quantity and quality of sunflower production. Studies have also taken into account the more frequent drought in the last decade - soil and atmospheric. Research shows that its good drought resilience allows it to be grown under irrigation conditions, but is sensitive to severe droughts, especially in the critical stages of development which leads to poor quality and drastic decrease in yield, and in some years to the lack of yields. The results show that sunflower irrigation has a large reserve for obtaining additional yield, which has been established through experiments in different parts of the country. The increase in irrigation is about 30-40%, and critical for water stress is the period of 20 days before and 20 days after flowering.

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Claims 4

Intervention effectauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

Severe drought reduced sunflower production quality.

Taxon
SunflowerHelianthus annuust0
Treatment
severe droughtse0
Outcome
qualitye0
Direction
poore0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“sensitive to severe droughts, especially in the critical stages of development which leads to poor quality and drastic decrease in yield, and in some years to the lack of yields.”

✓ located verbatim in the source · abstract, characters 353–531 · show in text ↑
t0

“Sunflower”

✓ located verbatim in the source · title, characters 0–9 · show in text ↑
Intervention effectauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

Severe drought drastically decreased sunflower yield and sometimes eliminated it.

Taxon
SunflowerHelianthus annuust0
Treatment
severe droughtse0
Outcome
yielde0
Direction
drastic decreasee0
Qualifier
in some years to the lack of yieldse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“sensitive to severe droughts, especially in the critical stages of development which leads to poor quality and drastic decrease in yield, and in some years to the lack of yields.”

✓ located verbatim in the source · abstract, characters 353–531 · show in text ↑
t0

“Sunflower”

✓ located verbatim in the source · title, characters 0–9 · show in text ↑
Intervention effectobservedoriginal resultpositivebasis n/a

Claim · model-written summary

Irrigation increased sunflower yield by about 30-40%.

Taxon
SunflowerHelianthus annuust0
Treatment
irrigatione0
Outcome
increasee0
Direction
increasee0
Value
30-40%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The increase in irrigation is about 30-40%”

✓ located verbatim in the source · abstract, characters 709–751 · show in text ↑
t0

“Sunflower”

✓ located verbatim in the source · title, characters 0–9 · show in text ↑
Observationobservedoriginal resultbasis n/a

Claim · model-written summary

The critical water stress window is 20 days before through 20 days after flowering.

Taxon
SunflowerHelianthus annuust0
Organ / stage
floweringe0
Outcome
critical for water stresse0
Value
20 days before and 20 days after floweringe0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“critical for water stress is the period of 20 days before and 20 days after flowering.”

✓ located verbatim in the source · abstract, characters 757–843 · show in text ↑
t0

“Sunflower”

✓ located verbatim in the source · title, characters 0–9 · show in text ↑

drought · yield · Helianthus annuus (common sunflower)Positive and negative results

75 papers: 13 positive, 62 negative or no effect

61 papers in the same direction as this paper · 13 in the opposite direction

  1. negative
  2. positive
  3. positive

71 papers more in this group

See all 75 papers →

drought · quality: general · Helianthus annuus (common sunflower)Results agree

4 papers: 0 positive, 4 negative or no effect

3 papers in the same direction as this paper

  1. negative
  2. no effect
  3. negative
See all 4 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.