Abstract
ABSTRACT This study was conducted in a greenhouse to evaluate the root and shoot response of canola (Brassica napus L.) to salt-stress conditions and the remobilization, deposition, and input rate of sodium (Na), potassium (K), and magnesium (Mg) at different salinity levels using two canola cultivars. A salt-tolerant (‘Kristina’) cultivar and a salt-sensitive (‘Hyola 308’) cultivar were grown in nutrient solutions with 0, 50, 100, 150, and 200 mol m−3 NaCl for 7 d. The plants were harvested after 6, 12, 18, and 24 h and 3 and 7 d after salt treatment. The results indicated that increasing salinity significantly decreased shoot and root weights 7 d after treatment. Also, K content and K-Na selectivity decreased in both cultivars, but the changes in ‘Hyola 308’ were greater than in ‘Kristina.’ Electrolyte leakage was increased significantly by salinity, and cell-membrane stability of ‘Hyola 308’ was damaged more than that of ‘Kristina’. Sodium import, transport, and deposition was increased by salinity concentration but remobilization was decreased. The K and Mg import, deposition, and remobilization were also decreased. From this experiment we can conclude that greater K and Mg remobilization in ‘Kristina’ could be a mechanism of salt tolerance in canola.
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Claims 8
Claim · model-written summary
Increasing salinity significantly decreased shoot and root weights after seven days.
- Taxon
- canola
.jpg?width=60)
Brassica napus var. napust0 - Organ / stage
- shoot and roote0
- Treatment
- increasing salinitye0
- Outcome
- shoot and root weightse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“increasing salinity significantly decreased shoot and root weights 7 d after treatment”
t0“Canola”
t1“Canola”
Claim · model-written summary
Salinity decreased K content and K-Na selectivity in both cultivars, more in Hyola 308.
- Taxon
- canolaBrassica napus var. napust0
- Material
- ‘Hyola 308’e0
- Treatment
- salinitye1
- Outcome
- K content and K-Na selectivitye0
- Direction
- decreasede0
- Comparator
- ‘Kristina’e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K content and K-Na selectivity decreased in both cultivars, but the changes in ‘Hyola 308’ were greater than in ‘Kristina.’”
t0“Canola in Relation to Accumulation and Xylem Transportation of Cations”
t1“Canola in Relation to Accumulation and Xylem Transportation of Cations”
e1“increasing salinity significantly decreased shoot and root weights 7 d after treatment”
e2“cell-membrane stability of ‘Hyola 308’ was damaged more than that of ‘Kristina’”
Claim · model-written summary
Salinity significantly increased electrolyte leakage.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- salinitye0
- Outcome
- Electrolyte leakagee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Electrolyte leakage was increased significantly by salinity”
t0“Canola”
t1“Canola”
Claim · model-written summary
Hyola 308 cell-membrane stability was damaged more than Kristina.
- Taxon
- canolaBrassica napus var. napust0
- Material
- ‘Hyola 308’e0
- Outcome
- cell-membrane stabilitye0
- Direction
- damaged moree0
- Comparator
- ‘Kristina’e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cell-membrane stability of ‘Hyola 308’ was damaged more than that of ‘Kristina’”
t0“Canola”
t1“Canola”
Claim · model-written summary
Salinity increased sodium import, transport and deposition.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- salinity concentratione0
- Outcome
- Sodium import, transport, and depositione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sodium import, transport, and deposition was increased by salinity concentration”
t0“Canola”
t1“Canola”
Claim · model-written summary
Salinity decreased sodium remobilization.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- salinitye1
- Outcome
- remobilizatione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but remobilization was decreased”
t0“Canola in Relation to Accumulation and Xylem Transportation of Cations”
t1“Canola in Relation to Accumulation and Xylem Transportation of Cations”
e1“increasing salinity significantly decreased shoot and root weights 7 d after treatment”
Claim · model-written summary
K and Mg import, deposition and remobilization decreased.
- Taxon
- canolaBrassica napus var. napust0
- Treatment
- salinitye1
- Outcome
- K and Mg import, deposition, and remobilizatione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The K and Mg import, deposition, and remobilization were also decreased”
t0“Canola in Relation to Accumulation and Xylem Transportation of Cations”
t1“Canola in Relation to Accumulation and Xylem Transportation of Cations”
e1“increasing salinity significantly decreased shoot and root weights 7 d after treatment”
Claim · model-written summary
Greater K and Mg remobilization in Kristina may explain its salt tolerance.
- Taxon
- canolaBrassica napus var. napuse0
- Material
- ‘Kristina’e0
- Outcome
- salt tolerancee0
- Qualifier
- greater K and Mg remobilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“greater K and Mg remobilization in ‘Kristina’ could be a mechanism of salt tolerance in canola”
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See all 21 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.