Abstract
Salinity is a major environmental factor that influences rapeseed production in arid and semi-arid regions of central and southern Iran. In this study, effect of applied NaCl on shoot and root growth and distribution and accumulation of Na, Cl, K, Ca and Mg in the canola plant (Brassica napus L. cv: Hayola 308 and cv: PP 401) was investigated. The experiment was arranged in a completely randomized design (CRD) under the greenhouse condition. Sodium chloride was applied at the rates of 0, 4, 8 and 12 ds m NaCl. Shoot and 1 root growth of the canola plants was inhibited by salinity and NaCl significantly decreased shoot and root dry mass of canola plants. Leaf number and shoot height were inhibited by increased salt treatments in both cultivars, although Hayola 308 was more salt-tolerant than PP 401. In 8 and 12 ds m salt treatments, Hayola 1 308 had significantly higher root and shoot dry weights per plant than PP 401. The addition of NaCl in the soil decreased total chlorophyll concentration in plants. The total chlorophyll in Hayola 308, however, was considerably greater (50 and 35%) than in PP 401 at 8 and 12 ds m salt treatments, respectively. 1 Concentrations of Na and Cl ions significantly increased in parallel to amount of NaCl. On the contrary K concentrations in canola plant shoots and roots were significantly decreased with increasing salinity. The Ca concentration in the roots declined with NaCl application while Ca increased in the shoots. Mg ion concentration in root at first decreased and then increased. In general, it seems that at high salinity levels PP 401 cultivar was more sensitive than Hayola 308 cultivar, because of more sodium and chlorine in the shoot and more calcium and manganese in the root.
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Claims 17
Claim · model-written summary
Salinity inhibited canola shoot and root growth.
- Taxon
- Canola
.jpg?width=60)
Brassica napus var. napust0 - Treatment
- NaCle0
- Outcome
- Shoot and 1 root growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Canola (Brassica napus L.)”
e0“Shoot and 1 root growth of the canola plants was inhibited by salinity and NaCl significantly decreased shoot and root dry mass of canola plants”
Claim · model-written summary
NaCl significantly decreased canola shoot and root dry mass.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- NaCle0
- Outcome
- shoot and root dry masse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“NaCl significantly decreased shoot and root dry mass of canola plants”
Claim · model-written summary
Higher salt treatments inhibited leaf number and shoot height in both cultivars.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- NaCle1
- Outcome
- Leaf number and shoot heighte0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“Leaf number and shoot height were inhibited by increased salt treatments in both cultivars”
e1“applied NaCl”
Claim · model-written summary
Hayola 308 was more salt tolerant than PP 401.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Hayola 308e0
- Outcome
- more salt-tolerante0
- Comparator
- PP 401e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“Hayola 308 was more salt-tolerant than PP 401”
Claim · model-written summary
Under 8 and 12 ds m salt treatments, Hayola 308 had significantly higher root and shoot dry weights than PP 401.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Hayola 1 308e0
- Outcome
- root and shoot dry weights per plante0
- Direction
- highere0
- Qualifier
- 8 and 12 ds m salt treatmentse0
- Comparator
- PP 401e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“In 8 and 12 ds m salt treatments, Hayola 1 308 had significantly higher root and shoot dry weights per plant than PP 401”
Claim · model-written summary
Soil NaCl addition decreased total plant chlorophyll concentration.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- NaCle0
- Outcome
- total chlorophyll concentratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“The addition of NaCl in the soil decreased total chlorophyll concentration in plants”
Claim · model-written summary
At 8 ds m salt, Hayola 308 total chlorophyll exceeded PP 401 by 50%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Hayola 308e0
- Outcome
- total chlorophylle0
- Direction
- greatere0
- Value
- 50e0
- Qualifier
- 8 and 12 ds m salt treatmentse0
- Comparator
- PP 401e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“The total chlorophyll in Hayola 308, however, was considerably greater (50 and 35%) than in PP 401 at 8 and 12 ds m salt treatments, respectively”
Claim · model-written summary
At 12 ds m salt, Hayola 308 total chlorophyll exceeded PP 401 by 35%.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- Hayola 308e0
- Outcome
- total chlorophylle0
- Direction
- greatere0
- Value
- 35%e0
- Qualifier
- 8 and 12 ds m salt treatmentse0
- Comparator
- PP 401e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“The total chlorophyll in Hayola 308, however, was considerably greater (50 and 35%) than in PP 401 at 8 and 12 ds m salt treatments, respectively”
Claim · model-written summary
Na concentration increased significantly with NaCl amount.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- NaCle0
- Outcome
- Nae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“Concentrations of Na and Cl ions significantly increased in parallel to amount of NaCl”
Claim · model-written summary
Cl concentration increased significantly with NaCl amount.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- NaCle0
- Outcome
- Cle0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“Concentrations of Na and Cl ions significantly increased in parallel to amount of NaCl”
Claim · model-written summary
Increasing salinity significantly decreased K in canola shoots and roots.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- NaCle1
- Outcome
- K concentrations in canola plant shoots and rootse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“K concentrations in canola plant shoots and roots were significantly decreased with increasing salinity”
e1“applied NaCl”
Claim · model-written summary
NaCl decreased root Ca concentration.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- NaCle0
- Outcome
- Ca concentration in the rootse0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“The Ca concentration in the roots declined with NaCl application while Ca increased in the shoots”
Claim · model-written summary
NaCl increased shoot Ca concentration.
- Taxon
- CanolaBrassica napus var. napust0
- Organ / stage
- shootse0
- Treatment
- NaCle0
- Outcome
- Cae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“The Ca concentration in the roots declined with NaCl application while Ca increased in the shoots”
Claim · model-written summary
Root Mg concentration first decreased and then increased.
- Taxon
- CanolaBrassica napus var. napust0
- Outcome
- Mg ion concentration in roote0
- Direction
- at first decreased and then increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“Mg ion concentration in root at first decreased and then increased”
Claim · model-written summary
PP 401 appeared more sensitive than Hayola 308 at high salinity.
- Taxon
- CanolaBrassica napus var. napust0
- Material
- PP 401e0
- Outcome
- more sensitivee0
- Qualifier
- high salinity levelse0
- Comparator
- Hayola 308e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“at high salinity levels PP 401 cultivar was more sensitive than Hayola 308 cultivar”
Claim · model-written summary
PP 401 had more shoot sodium and chlorine than Hayola 308.
- Taxon
- CanolaBrassica napus var. napust0
- Outcome
- sodium and chlorine in the shoote0
- Direction
- moree0
Not reportedMaterial
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“more sodium and chlorine in the shoot”
Claim · model-written summary
PP 401 had more root calcium and manganese than Hayola 308.
- Taxon
- CanolaBrassica napus var. napust0
- Outcome
- calcium and manganese in the roote0
- Direction
- moree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Canola (Brassica napus L.)”
e0“more calcium and manganese in the root”
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