Paper · 2021 · Journal of Oilseeds Research

Effect of water stress on physiological traits of sunflower (Helianthus annuus L.) restorer lines

LAKSHMI PRAYAGA; B YASASWINI CHOWDARY; S NARENDER REDDY; et al.

5
claims
11
verbatim quotes
2
citations
2
research areas
—
Not open access

Abstract

A field experiment was conducted during rabi, 2018 to evaluate the performance of eight sunflower restorer lines viz., RGP 21-P6, RGP 32-P1, RGP 33-P5, RGP 50-P1, RGP 60-P2, RGP 61-P1, RGP 61-P2 and RGP 95-P1 for physiological traits under water stress conditions in a split-plot design with three replications. Water stress was imposed in stress plots from flowering to harvest. Results indicated that the traits, leaf area index (LAI), total drymatter (TDM), proline accumulation, and crop growth rate (CGR) were more sensitive to moisture stress with above 30% reduction. Whereas, SPAD chlorophyll meter readings (SCMR) was less sensitive with less than 10% reduction due to water stress. Significant decrease and variation was observed among the restorer lines for LAI, SCMR, TDM, relative water content (RWC) andCGR, whereas leaftemperature and proline concentration increased due to water stress. Restorer lines RGP 21-P6, RGP 61-P1, RGP-61-P2, and RGP 95-P1 recorded superiority inLAI, CGR, TDM and leaf temperature among the physiological traits studied even under water stress.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

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 5

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Water stress reduced leaf area index, total dry matter and crop growth rate by over 30%.

Taxon
sunflowerHelianthus annuust0
Treatment
moisture stresse0
Outcome
leaf area index (LAI), total drymatter (TDM), proline accumulation, and crop growth rate (CGR)e0
Direction
reductione0
Value
above 30%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 traits, leaf area index (LAI), total drymatter (TDM), proline accumulation, and crop growth rate (CGR) were more sensitive to moisture stress with above 30% reduction.”

✓ located verbatim in the source · abstract, characters 403–574 · show in text ↑
t0

“sunflower”

✓ located verbatim in the source · title, characters 50–59 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

SPAD chlorophyll meter readings decreased by less than 10% under water stress.

Taxon
sunflowerHelianthus annuust0
Treatment
water stresse0
Outcome
SPAD chlorophyll meter readings (SCMR)e0
Direction
reductione0
Value
less than 10%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

“SPAD chlorophyll meter readings (SCMR) was less sensitive with less than 10% reduction due to water stress.”

✓ located verbatim in the source · abstract, characters 584–691 · show in text ↑
t0

“sunflower”

✓ located verbatim in the source · title, characters 50–59 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Leaf area index, SCMR, total dry matter, relative water content and crop growth rate decreased significantly and varied among restorer lines.

Taxon
sunflowerHelianthus annuust0
Treatment
water stresse1
Outcome
LAI, SCMR, TDM, relative water content (RWC) andCGRe0
Direction
decreasee0

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

“Significant decrease and variation was observed among the restorer lines for LAI, SCMR, TDM, relative water content (RWC) andCGR”

✓ located verbatim in the source · abstract, characters 692–820 · show in text ↑
t0

“sunflower”

✓ located verbatim in the source · title, characters 50–59 · show in text ↑
e1

“Water stress was imposed in stress plots from flowering to harvest.”

✓ located verbatim in the source · abstract, characters 312–379 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Leaf temperature and proline concentration increased under water stress.

Taxon
sunflowerHelianthus annuust0
Treatment
water stresse0
Outcome
leaftemperature and proline concentratione0
Direction
increasede0

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

“leaftemperature and proline concentration increased due to water stress.”

✓ located verbatim in the source · abstract, characters 830–902 · show in text ↑
t0

“sunflower”

✓ located verbatim in the source · title, characters 50–59 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

RGP 21-P6, RGP 61-P1, RGP-61-P2, and RGP 95-P1 were superior for LAI, CGR, TDM and leaf temperature under water stress.

Taxon
sunflowerHelianthus annuust0
Material
RGP 21-P6, RGP 61-P1, RGP-61-P2, and RGP 95-P1e0
Treatment
water stresse0
Outcome
superiority inLAI, CGR, TDM and leaf temperaturee0
Direction
superioritye0

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

“Restorer lines RGP 21-P6, RGP 61-P1, RGP-61-P2, and RGP 95-P1 recorded superiority inLAI, CGR, TDM and leaf temperature among the physiological traits studied even under water stress.”

✓ located verbatim in the source · abstract, characters 903–1086 · show in text ↑
t0

“sunflower”

✓ located verbatim in the source · title, characters 50–59 · show in text ↑

drought · growth · Helianthus annuus (common sunflower)Results differ

59 papers: 9 positive, 50 negative or no effect

49 papers in the same direction as this paper · 9 in the opposite direction

  1. negative
  2. negative
  3. positive

55 papers more in this group

See all 59 papers →

drought · physiology: pigments · Helianthus annuus (common sunflower)Positive and negative results

19 papers: 1 positive, 18 negative or no effect

17 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. negative

15 papers more in this group

See all 19 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.