Abstract
Seeds of wheat (Triticum aestivum L., cv. Jadeíde 11) were used to investigate the effects of potassium nitrate priming on germination and early seedling growth under salt stress. It was hypothesized that priming with potassium nitrate may improve seed germination and plant establishment by mitigating the negative effects of saline stress through its role in cell osmotic balance. The seeds were soaked in distilled water or in a 10 g L–1 KNO3solution at 25 °C for 2 hours, and after drying, were distributed in plastic boxes with blotter paper containing different salt solutions prepared with concentrations of 0 (control), 25, 50, 75 and 100 mmol L–1 NaCl. The plastic boxes were kept in a seed germinator, at 22 °C for 12 days. A completely randomized design in a 2 × 5 factorial scheme with four replications of 50 seeds each was used. The primed seeds with KNO3 showed improved germination performance, early growth and vigor index of wheat seedlings in salt stress conditions. Low salt concentrations may induce osmotic adjustment activity in the wheat plants and lead to increases in shoot and root length of wheat seedlings, whereas higher concentrations cause severe inhibition of plant growth. The ‶Jadeíde 11″ wheat cultivar is a moderately tolerant genotype to salt stress during the seedling establishment stage by presenting yield stability index greater than 0.74 until the level of 100 mmol L–1 of NaCl, and therefore can be recommended for cropping in soils with high salinity levels.
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Claims 6
Claim · model-written summary
KNO3 priming improved germination performance under salt stress.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- primed seeds with KNO3e0
- Outcome
- germination performancee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The primed seeds with KNO3 showed improved germination performance, early growth and vigor index of wheat seedlings in salt stress conditions.”
Claim · model-written summary
KNO3 priming improved early growth and vigor index under salt stress.
- Taxon
- wheatTriticum aestivume0
- Treatment
- primed seeds with KNO3e0
- Outcome
- early growth and vigor indexe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The primed seeds with KNO3 showed improved germination performance, early growth and vigor index of wheat seedlings in salt stress conditions.”
Claim · model-written summary
Low salt concentrations may increase seedling shoot and root length.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Low salt concentrationse0
- Outcome
- shoot and root lengthe0
- Direction
- increasese0
- Qualifier
- may induce osmotic adjustment activitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low salt concentrations may induce osmotic adjustment activity in the wheat plants and lead to increases in shoot and root length of wheat seedlings, whereas higher concentrations cause severe inhibition of plant growth.”
Claim · model-written summary
Higher salt concentrations severely inhibited plant growth.
- Taxon
- wheatTriticum aestivume0
- Treatment
- higher concentrationse0
- Outcome
- plant growthe0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low salt concentrations may induce osmotic adjustment activity in the wheat plants and lead to increases in shoot and root length of wheat seedlings, whereas higher concentrations cause severe inhibition of plant growth.”
Claim · model-written summary
Jadeíde 11 was moderately salt tolerant during seedling establishment, with yield stability index above 0.74 through 100 mmol L–1 NaCl.
- Taxon
- wheatTriticum aestivume0
- Material
- Jadeíde 11e0
- Outcome
- yield stability indexe0
- Direction
- greater thane0
- Value
- 0.74e0
- Qualifier
- until the level of 100 mmol L–1 of NaCle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ‶Jadeíde 11″ wheat cultivar is a moderately tolerant genotype to salt stress during the seedling establishment stage by presenting yield stability index greater than 0.74 until the level of 100 mmol L–1 of NaCl, and therefore can be recommended for cropping in soils with high salinity levels.”
Claim · model-written summary
The cultivar can be recommended for cropping on highly saline soils.
- Taxon
- wheatTriticum aestivume0
- Material
- Jadeíde 11e0
- Outcome
- recommended for cropping in soils with high salinity levelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ‶Jadeíde 11″ wheat cultivar is a moderately tolerant genotype to salt stress during the seedling establishment stage by presenting yield stability index greater than 0.74 until the level of 100 mmol L–1 of NaCl, and therefore can be recommended for cropping in soils with high salinity levels.”
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