Paper · 2025 · Russian Journal of Plant Physiology

Physiological Basis of Seed Priming Induced Improvement in Germination and Seedling Vigor in Onion

L. Vij; N. Kaur; R. Singh

6
claims
10
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Abstract Poor germination, vigor and emergence are few major constraints significantly disrupting the yield potential of the onion farming. Being a high value crop, the present study was designed to comprehend the physiological basis of the seed priming induced improvement in onion seeds of variety Punjab Naroya. Laboratory and field studies were carried out in the years 2021 and 2022 amongst seeds primed with various inorganic salts—KNO3, CaCl2, KH2PO4, K2HPO4, Mg(NO3)2, ZnSO4 and plant growth regulators—GA3 and ethrel in a completely randomized design in Seed Physiology Laboratory, Punjab Agricultural University, Ludhiana, Punjab, India. Priming with 10 ppm ethrel was recorded to be the most effective treatment amongst all for enhancing the germination percentage, seedling vigor and field emergence. Physiological analysis of the priming treatments indicated the major role of the enhanced activities of dehydrogenase and α-amylase enzymes in establishing vigorous seedlings than control. Efficient mobilization of food reserves like starch and utilization of free amino acids for protein reconstitution aided in providing high energy substrates like soluble sugars and proteins for seedling emergence and growth. The current investigation concluded that priming of the onion seeds with 10 ppm ethrel for time duration of 9 h was the most efficient treatment in convalescing low vigor onion seeds of variety Punjab Naroya and improving the germination percentage, early seedling vigor and plant stand under field conditions.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Priming with 10 ppm ethrel was most effective for germination, vigor, and field emergence.

Treatment
10 ppm ethrele0
Outcome
germination percentage, seedling vigor and field emergencee0
Direction
enhancinge0
Comparator
alle0

Not reportedTaxon

Verbatim

e0

“Priming with 10 ppm ethrel was recorded to be the most effective treatment amongst all for enhancing the germination percentage, seedling vigor and field emergence”

✓ located verbatim in the source · abstract, characters 648–811 · show in text ↑
Mechanismobservedoriginal resultpositivemeasured

Claim · model-written summary

Enhanced dehydrogenase activity contributed to vigorous seedlings after priming.

Taxon
onionAllium cepat0
Gene
dehydrogenasee0
Outcome
vigorous seedlingse0
Direction
enhancede0
Comparator
controle0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the major role of the enhanced activities of dehydrogenase and α-amylase enzymes in establishing vigorous seedlings than control”

✓ located verbatim in the source · abstract, characters 872–1000 · show in text ↑
t0

“onion”

✓ located after whitespace/quote normalisation · title, characters 93–98 · show in text ↑
Mechanismobservedoriginal resultpositivemeasured

Claim · model-written summary

Enhanced α-amylase activity contributed to vigorous seedlings after priming.

Taxon
onionAllium cepat0
Gene
α-amylasee0
Outcome
vigorous seedlingse0
Direction
enhancede0
Comparator
controle0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the major role of the enhanced activities of dehydrogenase and α-amylase enzymes in establishing vigorous seedlings than control”

✓ located verbatim in the source · abstract, characters 872–1000 · show in text ↑
t0

“onion”

✓ located after whitespace/quote normalisation · title, characters 93–98 · show in text ↑
Mechanismobservedoriginal resultpositivemeasured

Claim · model-written summary

Starch mobilization aided substrate provision for seedling emergence and growth.

Taxon
onionAllium cepat0
Outcome
seedling emergence and growthe0
Qualifier
Efficient mobilization of food reserves like starche0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Efficient mobilization of food reserves like starch and utilization of free amino acids for protein reconstitution aided in providing high energy substrates like soluble sugars and proteins for seedling emergence and growth”

✓ located verbatim in the source · abstract, characters 1002–1225 · show in text ↑
t0

“onion”

✓ located after whitespace/quote normalisation · title, characters 93–98 · show in text ↑
Mechanismobservedoriginal resultpositivemeasured

Claim · model-written summary

Free amino acid use for protein reconstitution aided substrate provision for seedling emergence and growth.

Taxon
onionAllium cepat0
Outcome
seedling emergence and growthe0
Qualifier
utilization of free amino acids for protein reconstitutione0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“utilization of free amino acids for protein reconstitution aided in providing high energy substrates like soluble sugars and proteins for seedling emergence and growth”

✓ located verbatim in the source · abstract, characters 1058–1225 · show in text ↑
t0

“onion”

✓ located after whitespace/quote normalisation · title, characters 93–98 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend 10 ppm ethrel priming for 9 h for low-vigor Punjab Naroya onion seeds.

Taxon
onionAllium cepae0
Material
Punjab Naroyae0
Outcome
priming of the onion seeds with 10 ppm ethrel for time duration of 9 he0
Setting
field conditionse0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“priming of the onion seeds with 10 ppm ethrel for time duration of 9 h was the most efficient treatment in convalescing low vigor onion seeds of variety Punjab Naroya and improving the germination percentage, early seedling vigor and plant stand under field conditions”

✓ located verbatim in the source · abstract, characters 1268–1536 · show in text ↑

(2-chloroethyl)phosphonic acid · growth · Allium cepa (onion)Positive and negative results

11 papers: 6 positive, 5 negative or no effect

5 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. negative
  3. negative

7 papers more in this group

See all 11 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.