Abstract
Abstract Due to health concerns regarding saturated fat in the human diet, canola ( Brassica spp.) is becoming an increasingly important source of edible vegetable oil because of its low saturated fat content. This increased demand, and the need for crop diversification, will undoubtedly promote increased acreage of canola in the western USA, where some soils are or have the potential to become saline. Salt tolerance in two canola species ( B. napus L. cv. Westar and B. campestris L. cv. Tobin) was determined in a 2‐yr field plot study. Six salinity treatments were imposed on a Holtville silty clay (clayey over loamy, montmorillonitic [calcareous], hyperthermic Typic Torrifluvent) by irrigating with waters salinized with NaCl and CaCl 2 (1:1 w/w). Electrical conductivities of the irrigation waters ranged from 1.2 to 9.7 dS m −1 the first year, and 1.2 to 11.5 dS m −1 the second year. Seed yield, vegetative growth, oil content, and protein content in the oil‐free seed meal were measured. Relative seed yields of Westar and Tobin were unaffected by soil NaCl and CaCl 2 (1:1 w/w) 9.7 dS m −1 (electrical conductivity of the saturated soil extract: EC e ), respectively. Each unit increase in salinity above the thresholds reduced the seed yield of Westar by 13.0% and Tobin by 14.3%. These results place both canola species in the salt‐tolerant category. Increased salinity did not significantly affect the oil or protein content of the oil‐free seed meal. Vegetative growth of both species was unaffected by soil salinity up to 10.0 dS m −1 and the growth decline above this threshold was 11.2% per unit increase in salinity.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Westar seed yield was unaffected up to the stated salinity threshold.
- Taxon
- B. napus L.
_Brassica_napus_-_Habit.jpg?width=60)
Brassica napuse1 - Material
- Westare1
- Treatment
- soil NaCl and CaCl 2 (1:1 w/w)e0
- Outcome
- Relative seed yieldse0
- Direction
- unaffectede0
- Value
- 9.7 dS m −1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e0“Relative seed yields of Westar and Tobin were unaffected by soil NaCl and CaCl 2 (1:1 w/w) 9.7 dS m −1”
e1“B. napus L. cv. Westar”
Claim · model-written summary
Tobin seed yield was unaffected up to the stated salinity threshold.
- Taxon
- B. campestris L.
.jpg?width=60)
Brassica rapa subsp. oleiferae1 - Material
- Tobine1
- Treatment
- soil NaCl and CaCl 2 (1:1 w/w)e0
- Outcome
- Relative seed yieldse0
- Direction
- unaffectede0
- Value
- 9.7 dS m −1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Relative seed yields of Westar and Tobin were unaffected by soil NaCl and CaCl 2 (1:1 w/w) 9.7 dS m −1”
e1“B. campestris L. cv. Tobin”
Claim · model-written summary
Above the threshold, each salinity unit reduced Westar seed yield by 13.0%.
- Taxon
- B. napus L.Brassica napuse1
- Material
- Westare1
- Treatment
- salinitye0
- Outcome
- seed yielde0
- Direction
- reducede0
- Value
- 13.0%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Each unit increase in salinity above the thresholds reduced the seed yield of Westar by 13.0%”
e1“B. napus L. cv. Westar”
Claim · model-written summary
Above the threshold, each salinity unit reduced Tobin seed yield by 14.3%.
- Taxon
- B. campestris L.Brassica rapa subsp. oleiferae1
- Material
- Tobine1
- Treatment
- salinitye0
- Outcome
- seed yielde0
- Direction
- reducede0
- Value
- 14.3%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Each unit increase in salinity above the thresholds reduced the seed yield of Westar by 13.0% and Tobin by 14.3%”
e1“B. campestris L. cv. Tobin”
Claim · model-written summary
Salinity did not significantly affect oil content.
- Taxon
- Canola
.jpg?width=60)
Brassica napus var. napust0 - Treatment
- Increased salinitye0
- Outcome
- oile0
- Direction
- did not significantly affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Increased salinity did not significantly affect the oil or protein content of the oil‐free seed meal”
t0“Canola”
Claim · model-written summary
Salinity did not significantly affect protein content of oil-free seed meal.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- Increased salinitye0
- Outcome
- protein content of the oil‐free seed meale0
- Direction
- did not significantly affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased salinity did not significantly affect the oil or protein content of the oil‐free seed meal”
t0“Canola”
Claim · model-written summary
Vegetative growth of both canola species was unaffected up to 10.0 dS m −1.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- soil salinitye0
- Outcome
- Vegetative growthe0
- Direction
- unaffectede0
- Value
- 10.0 dS m −1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vegetative growth of both species was unaffected by soil salinity up to 10.0 dS m −1”
t0“Canola”
Claim · model-written summary
Above the threshold, vegetative growth declined 11.2% per salinity unit.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- salinitye0
- Outcome
- growth declinee0
- Direction
- declinee0
- Value
- 11.2%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth decline above this threshold was 11.2% per unit increase in salinity”
t0“Canola”
The same questions in other papers
salinity · quality: protein · Brassica napus (oilseed rape)Results differ
5 papers in the same direction as this paper
- negative
- negative
- no effect
2 papers more in this group
See all 6 papers →salinity · growth · Brassica napus (oilseed rape)Positive and negative results
67 papers in the same direction as this paper · 11 in the opposite direction
- positive
- positive
- negative
75 papers more in this group
See all 79 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.