Paper · 2023 · Agriculture

Germination and Seedling Development Responses of Sunflower (Helianthus annuus L.) Seeds to Temperature and Different Levels of Water Availability

Asma Haj Sghaier; Hussein Khaeim; Ákos Tarnawa; et al.

8
claims
15
verbatim quotes
34
citations
1
research areas
✓
Open access · cc-by

Abstract

Abiotic variables are crucial for seed germination and seedling development. In the present work, we attempted to determine the optimal conditions (temperature, water, seed density, and fungal growth) for sunflower seed development (Helianthus annus L. Larissza). The germination of sunflower seeds was investigated under controlled conditions at eight consistent temperatures: 5 °C, 10 °C, 15 °C, 20 °C, 25 °C, 30 °C, 35 °C, and 40 °C. For the water test, there were 12 water levels based on one-milliliter intervals and 18 water levels based on thousand kernel weight (TKW). In addition, four seed densities (6, 8, 10, and 12) and two antifungal application techniques (sterilization and growing medium) were examined. The results showed that temperature has a significant effect on seed germination, germination timing, and seedling development. Temperatures between 15 and 35 degrees Celsius were optimal for germination, with 25 degrees Celsius being the optimal temperature for significant germination and seedling development. Beginning at 0.6 mL, or 125% of the TKW, sunflower seeds can germinate under a wide range of water availability. The optimal range for seedling development (8.2–11.4) is wider than the optimal range for dry matter accumulation, which is 5.8–8.2 mL or 1000–1625% of the TKW. The finding that a density of 10 to 12 seeds per 9 cm Petri dish demonstrates the most exceptional values is advantageous for future research and breeding projects, particularly when seeds are scarce. Seed priming is a more effective antifungal application technique than other techniques.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 8

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Temperature significantly affected sunflower germination, timing and seedling development.

Taxon
sunflowerHelianthus annuust0
Treatment
temperaturee0
Outcome
seed germination, germination timing, and seedling developmente0

Not reportedDirection

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 results showed that temperature has a significant effect on seed germination, germination timing, and seedling development.”

✓ located verbatim in the source · abstract, characters 721–848 · show in text ↑
t0

“sunflower”

✓ located after whitespace/quote normalisation · title, characters 50–59 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Germination was optimal between 15 and 35 degrees Celsius.

Taxon
sunflowerHelianthus annuust0
Treatment
Temperatures between 15 and 35 degrees Celsiuse0
Outcome
germinatione0
Direction
optimale0

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

“Temperatures between 15 and 35 degrees Celsius were optimal for germination”

✓ located verbatim in the source · abstract, characters 849–924 · show in text ↑
t0

“sunflower”

✓ located after whitespace/quote normalisation · title, characters 50–59 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

A temperature of 25 degrees Celsius was optimal for germination and seedling development.

Taxon
sunflowerHelianthus annuust0
Treatment
25 degrees Celsiuse0
Outcome
germination and seedling developmente0
Direction
optimale0

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

“with 25 degrees Celsius being the optimal temperature for significant germination and seedling development”

✓ located verbatim in the source · abstract, characters 926–1032 · show in text ↑
t0

“sunflower”

✓ located after whitespace/quote normalisation · title, characters 50–59 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Sunflower seeds germinated beginning at 0.6 mL of water.

Taxon
sunflowerHelianthus annuuse0
Treatment
water availabilitye0
Outcome
seeds can germinatee0
Value
0.6 mLe0

Not reportedDirection

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

“Beginning at 0.6 mL, or 125% of the TKW, sunflower seeds can germinate under a wide range of water availability.”

✓ located verbatim in the source · abstract, characters 1034–1146 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The seedling development optimum was 8.2–11.4.

Taxon
sunflowerHelianthus annuust0
Outcome
seedling developmente0
Direction
optimale0
Value
8.2–11.4e0

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 optimal range for seedling development (8.2–11.4) is wider than the optimal range for dry matter accumulation, which is 5.8–8.2 mL or 1000–1625% of the TKW.”

✓ located verbatim in the source · abstract, characters 1147–1307 · show in text ↑
t0

“sunflower”

✓ located after whitespace/quote normalisation · title, characters 50–59 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The dry matter accumulation optimum was 5.8–8.2 mL.

Taxon
sunflowerHelianthus annuust0
Outcome
dry matter accumulatione0
Direction
optimale0
Value
5.8–8.2 mLe0

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 optimal range for dry matter accumulation, which is 5.8–8.2 mL or 1000–1625% of the TKW.”

✓ located verbatim in the source · abstract, characters 1215–1307 · show in text ↑
t0

“sunflower”

✓ located after whitespace/quote normalisation · title, characters 50–59 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Ten to twelve seeds per 9 cm Petri dish gave the best measured values.

Taxon
sunflowerHelianthus annuust0
Treatment
10 to 12 seeds per 9 cm Petri dishe0
Outcome
most exceptional valuese0
Direction
most exceptionale0

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

“a density of 10 to 12 seeds per 9 cm Petri dish demonstrates the most exceptional values”

✓ located verbatim in the source · abstract, characters 1325–1413 · show in text ↑
t0

“sunflower”

✓ located after whitespace/quote normalisation · title, characters 50–59 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seed priming was the more effective antifungal application technique.

Taxon
sunflowerHelianthus annuust0
Treatment
Seed priminge0
Outcome
effective antifungal application techniquee0
Direction
more effectivee0
Comparator
other techniquese0

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

“Seed priming is a more effective antifungal application technique than other techniques.”

✓ located verbatim in the source · abstract, characters 1509–1597 · show in text ↑
t0

“sunflower”

✓ located after whitespace/quote normalisation · title, characters 50–59 · show in text ↑

seed treatment · molecular: metabolites · Helianthus annuus (common sunflower)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
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.