Abstract
The negative effects of salt stress vary among different rapeseed cultivars. In this study, we investigated the sodium chloride tolerance among 10 rapeseed cultivars based on membership function values (MFV) and Euclidean cluster analyses by exposing seedlings to 0, 100, or 200 mM NaCl. The NaCl toxicity significantly reduced growth, biomass, endogenous K+ levels, relative water content and increased electrolyte leakage, soluble sugar levels, proline levels, and antioxidant enzyme activities. SPAD values were highly variable among rapeseed cultivars. We identified three divergent (tolerant, moderately tolerant, and sensitive) groups. We found that Hua6919 and Yunyoushuang2 were the most salt-tolerant cultivars and that Zhongshuang11 and Yangyou9 were the most salt-sensitive cultivars. The rapeseed cultivars were further subjected to photosynthetic gas exchange and anatomical trait analyses. Among the photosynthetic gas exchange and anatomical traits, the stomatal aperture was the most highly correlated with salinity tolerance in rapeseed cultivars and thus, is important for future studies that aim to improve salinity tolerance in rapeseed. Thus, we identified and characterized two salt-tolerant cultivars that will be useful for breeding programs that aim to develop salt-tolerant rapeseed.
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Claims 14
Claim · model-written summary
NaCl significantly reduced growth, biomass in rapeseed.
- Taxon
- Brassica napus L.
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napust0 - Treatment
- NaCl toxicitye0
- Outcome
- growth, biomasse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“The NaCl toxicity significantly reduced growth, biomass, endogenous K+ levels, relative water content and increased electrolyte leakage, soluble sugar levels, proline levels, and antioxidant enzyme activities”
t0“Brassica napus L. Cultivars”
Claim · model-written summary
NaCl significantly reduced endogenous K+ levels in rapeseed.
- Taxon
- Brassica napus L.Brassica napust0
- Treatment
- NaCl toxicitye0
- Outcome
- endogenous K+ levelse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NaCl toxicity significantly reduced growth, biomass, endogenous K+ levels, relative water content and increased electrolyte leakage, soluble sugar levels, proline levels, and antioxidant enzyme activities”
t0“Brassica napus L. Cultivars”
Claim · model-written summary
NaCl significantly reduced relative water content in rapeseed.
- Taxon
- Brassica napus L.Brassica napust0
- Treatment
- NaCl toxicitye0
- Outcome
- relative water contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NaCl toxicity significantly reduced growth, biomass, endogenous K+ levels, relative water content and increased electrolyte leakage, soluble sugar levels, proline levels, and antioxidant enzyme activities”
t0“Brassica napus L. Cultivars”
Claim · model-written summary
NaCl increased electrolyte leakage in rapeseed.
- Taxon
- Brassica napus L.Brassica napust0
- Treatment
- NaCl toxicitye0
- Outcome
- electrolyte leakagee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NaCl toxicity significantly reduced growth, biomass, endogenous K+ levels, relative water content and increased electrolyte leakage, soluble sugar levels, proline levels, and antioxidant enzyme activities”
t0“Brassica napus L. Cultivars”
Claim · model-written summary
NaCl increased soluble sugar levels, proline levels in rapeseed.
- Taxon
- Brassica napus L.Brassica napust0
- Treatment
- NaCl toxicitye0
- Outcome
- soluble sugar levels, proline levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NaCl toxicity significantly reduced growth, biomass, endogenous K+ levels, relative water content and increased electrolyte leakage, soluble sugar levels, proline levels, and antioxidant enzyme activities”
t0“Brassica napus L. Cultivars”
Claim · model-written summary
NaCl increased antioxidant enzyme activities in rapeseed.
- Taxon
- Brassica napus L.Brassica napust0
- Treatment
- NaCl toxicitye0
- Outcome
- antioxidant enzyme activitiese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The NaCl toxicity significantly reduced growth, biomass, endogenous K+ levels, relative water content and increased electrolyte leakage, soluble sugar levels, proline levels, and antioxidant enzyme activities”
t0“Brassica napus L. Cultivars”
Claim · model-written summary
SPAD values varied among rapeseed cultivars.
Not reportedDirection
Verbatim
e0“SPAD values were highly variable among rapeseed cultivars”
Claim · model-written summary
Three salinity tolerance groups were identified.
- Taxon
- Brassica napus L.Brassica napust0
- Outcome
- three divergent (tolerant, moderately tolerant, and sensitive) groupse0
- Value
- threee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We identified three divergent (tolerant, moderately tolerant, and sensitive) groups”
t0“Brassica napus L. Cultivars”
Claim · model-written summary
Hua6919 was among the most salt-tolerant cultivars.
- Taxon
- Brassica napus L.Brassica napust0
- Material
- Hua6919e0
- Outcome
- most salt-tolerant cultivarse0
- Direction
- moste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hua6919 and Yunyoushuang2 were the most salt-tolerant cultivars”
t0“Brassica napus L. Cultivars”
Claim · model-written summary
Yunyoushuang2 was among the most salt-tolerant cultivars.
- Taxon
- Brassica napus L.Brassica napust0
- Material
- Yunyoushuang2e0
- Outcome
- most salt-tolerant cultivarse0
- Direction
- moste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hua6919 and Yunyoushuang2 were the most salt-tolerant cultivars”
t0“Brassica napus L. Cultivars”
Claim · model-written summary
Zhongshuang11 was among the most salt-sensitive cultivars.
- Taxon
- Brassica napus L.Brassica napust0
- Material
- Zhongshuang11e0
- Outcome
- most salt-sensitive cultivarse0
- Direction
- moste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zhongshuang11 and Yangyou9 were the most salt-sensitive cultivars”
t0“Brassica napus L. Cultivars”
Claim · model-written summary
Yangyou9 was among the most salt-sensitive cultivars.
- Taxon
- Brassica napus L.Brassica napust0
- Material
- Yangyou9e0
- Outcome
- most salt-sensitive cultivarse0
- Direction
- moste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zhongshuang11 and Yangyou9 were the most salt-sensitive cultivars”
t0“Brassica napus L. Cultivars”
Claim · model-written summary
Stomatal aperture correlated most strongly with salinity tolerance.
Not reportedDirection
Verbatim
e0“the stomatal aperture was the most highly correlated with salinity tolerance in rapeseed cultivars”
Claim · model-written summary
The tolerant cultivars were considered useful for breeding.
Verbatim
e0“two salt-tolerant cultivars that will be useful for breeding programs that aim to develop salt-tolerant rapeseed”
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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.