Abstract
This experiment was aimed at the optimisation of emergence with onion seeds. For this reason, onion seeds (Allium cepa L.) short-days cultivars (Aki and Alix) and long-days cultivars (Banko and Suluova) were primed with different concentrations of polyethylene glycol (PEG 6000) in inorganic salts (KNO3 and KH2PO4) for different periods of time (3 and 6 days or until 1% radicle emergence) at 15°C. After the treatments, the effects of priming on seedling emergence were evaluated at optimal (20°C) and suboptimal (11°C) temperatures, under field conditions. Priming in all KNO3 and KH2PO4 reduced the days to emergence without significant loss in emergence ratio. In contrast, seed priming with PEG was ineffective. In field experiments, which were conducted in different periods (at two week intervals in February and March for spring and in September and October for autumn), the emergences of primed seeds were not earlier than those of untreated seeds, except ‘Alix’. In this variety, seeds primed with KNO3 and KH2PO4 emerged approximately four days earlier than the control seeds, regardless of the sowing date. Key words: Allium cepa L., polyethylene glycol, potassium salts, priming.
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Claims 7
Claim · model-written summary
KNO3 priming reduced days to emergence without significant loss in emergence ratio.
- Taxon
- onion
Allium cepat0 - Treatment
- KNO3e0
- Outcome
- days to emergencee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Priming in all KNO3 and KH2PO4 reduced the days to emergence without significant loss in emergence ratio”
t0“onion seed”
Claim · model-written summary
KH2PO4 priming reduced days to emergence without significant loss in emergence ratio.
- Taxon
- onionAllium cepat0
- Treatment
- KH2PO4e0
- Outcome
- days to emergencee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Priming in all KNO3 and KH2PO4 reduced the days to emergence without significant loss in emergence ratio”
t0“onion seed”
Claim · model-written summary
Salt priming caused no significant loss in emergence ratio.
- Taxon
- onionAllium cepat0
- Outcome
- emergence ratioe0
- Direction
- without significant losse0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“without significant loss in emergence ratio”
t0“onion seed”
Claim · model-written summary
PEG seed priming was ineffective.
- Taxon
- onionAllium cepat0
- Treatment
- PEGe0
- Outcome
- ineffectivee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed priming with PEG was ineffective”
t0“onion seed”
Claim · model-written summary
Field emergence was generally no earlier for primed than untreated seeds.
- Taxon
- onionAllium cepat0
- Treatment
- primed seedse0
- Outcome
- emergencese0
- Direction
- not earliere0
- Comparator
- untreated seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the emergences of primed seeds were not earlier than those of untreated seeds, except ‘Alix’”
t0“onion seed”
Claim · model-written summary
Alix seeds primed with KNO3 emerged about four days earlier than controls regardless of sowing date.
- Taxon
- onionAllium cepat0
- Material
- Alixe1
- Treatment
- KNO3e0
- Outcome
- emergede0
- Direction
- earliere0
- Value
- four dayse0
- Comparator
- control seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seeds primed with KNO3 and KH2PO4 emerged approximately four days earlier than the control seeds, regardless of the sowing date”
t0“onion seed”
e1“the emergences of primed seeds were not earlier than those of untreated seeds, except ‘Alix’”
Claim · model-written summary
Alix seeds primed with KH2PO4 emerged about four days earlier than controls regardless of sowing date.
- Taxon
- onionAllium cepat0
- Treatment
- KH2PO4e0
- Outcome
- emergede0
- Direction
- earliere0
- Value
- four dayse0
- Comparator
- control seedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In this variety, seeds primed with KNO3 and KH2PO4 emerged approximately four days earlier than the control seeds, regardless of the sowing date”
t0“onion seed”
The same questions in other papers
potassium nitrate · growth · Allium cepa (onion)Positive and negative results
4 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- negative
4 papers more in this group
See all 8 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.