Paper · 2014 · Research on Crops

Effect of seed priming with various concentrations of KNO3on sunflower seed germination parameters inin vitrodrought conditions

Petar Èanak; Milan Jockoviæ; Mihajlo Æiriæ; et al.

3
claims
7
verbatim quotes
10
citations
2
research areas
—
Not open access

Abstract

Seed priming is technique for controlled seed hydratation which allows activation of pre-germinative metabolic processes. It has been successfully used for improving germination parameters in different crops. The study was conducted in 2012, at the Institute of Field and Vegetable Crops, Novi Sad, Serbia, in order to assess the effect of seed priming on four germination parameters (germination, germination index, mean germination time and time to 50% germination) of sunflower in in vitro drought conditions. Drought conditions (−0.8 MPa) were simulated using PEG 6000. Seed priming was conducted with soaking seed in water and different KNO3 solutions (0.1, 0.5 and 1%) for 12 h. Seed priming treatment with 0.1% KNO3 showed the best results and improved germination parameters: germination index, mean germination time and time to 50% germination of untreated seed (control). Seed priming showed no improvement in germination percentage in comparison to the control. Control had high germination (98%) and there was no possibility for its significant improvement with seed priming. This study showed that seed priming could improve some germination parameters of sunflower seed in in vitro drought conditions. Seed priming could be used as a simple method for overcoming problems related to a poor germination and seedling establishment in soil drought conditions. Main advantages of seed priming method are its simplicity and no requirements for expensive equipment and chemicals.

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Claims 3

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seed priming with 0.1% KNO3 improved germination index, mean germination time and time to 50% germination relative to untreated seed.

Taxon
sunflowerHelianthus annuust0
Treatment
Seed priming treatment with 0.1% KNO3e1
Outcome
germination index, mean germination time and time to 50% germinatione1
Direction
improvede1
Comparator
untreated seed (control)e1

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

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

Verbatim

e1

“Seed priming treatment with 0.1% KNO3 showed the best results and improved germination parameters: germination index, mean germination time and time to 50% germination of untreated seed (control)”

✓ located verbatim in the source · abstract, characters 685–880 · show in text ↑
t0

“sunflower seed germination parameters”

✓ located verbatim in the source · title, characters 61–98 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Seed priming did not improve germination percentage compared with the control, which had 98% germination.

Taxon
sunflowerHelianthus annuust0
Treatment
Seed priminge2
Outcome
germination percentagee2
Direction
no improvemente2
Qualifier
98%e3
Comparator
controle2

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

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

Verbatim

e2

“Seed priming showed no improvement in germination percentage in comparison to the control”

✓ located verbatim in the source · abstract, characters 882–971 · show in text ↑
e3

“Control had high germination (98%)”

✓ located verbatim in the source · abstract, characters 973–1007 · show in text ↑
t0

“sunflower seed germination parameters”

✓ located verbatim in the source · title, characters 61–98 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend seed priming as a simple method to overcome poor germination and seedling establishment under soil drought.

Taxon
sunflowerHelianthus annuust0
Outcome
overcoming problems related to a poor germination and seedling establishment in soil drought conditionse4

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

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

Verbatim

e4

“Seed priming could be used as a simple method for overcoming problems related to a poor germination and seedling establishment in soil drought conditions”

✓ located verbatim in the source · abstract, characters 1216–1369 · show in text ↑
t0

“sunflower seed germination parameters”

✓ located verbatim in the source · title, characters 61–98 · show in text ↑

potassium nitrate · growth · Helianthus annuus (common sunflower)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

seed treatment · growth · Helianthus annuus (common sunflower)Positive and negative results

55 papers: 49 positive, 6 negative or no effect

48 papers in the same direction as this paper · 6 in the opposite direction

  1. negative
  2. no effect
  3. no effect

51 papers more in this group

See all 55 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.