Abstract
Variations in morphology and nutrient acquisition between tap root and laterals of faba beans under different levels of NaCl salinity (0, 40 and 80 mM NaCl) were investigated. Experiments were conducted in aeroponics made possible for non-destructive sampling of root components in almost intact condition. Total shoot and root growth, leaf area and chlorophyll content were significantly reduced by salinity of 40 mM NaCl; however, effect on photosynthesis was nonsignificant. Higher root/shoot ratio was observed in the saline treatments, as shoot growth was reduced more than that of the roots. Surface area of tap root and lateral roots was reduced by 24 and 48%, respectively, indicating that lateral root was more susceptible to salinity than tap root. Considerable differences in nutrient acquisition were observed in plant parts i.e. leaves, stem, tap roots and lateral roots when subjected to salinity. The accumulation of sodium and chloride differed in different organs. Potassium and calcium contents were reduced in the 40 mM NaCl treatment in all parts except K in laterals and Ca in tap root, but these reductions were significant in the 80 mM NaCl treatment. Phosphorus content of shoot was also adversely affected by salinity at 40 mM NaCl.
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Claims 11
Claim · model-written summary
At 40 mM NaCl, shoot and root growth and leaf area declined significantly.
- Taxon
- Faba Beans
Vicia fabat0 - Treatment
- salinity of 40 mM NaCle0
- Outcome
- Total shoot and root growth, leaf areae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total shoot and root growth, leaf area and chlorophyll content were significantly reduced by salinity of 40 mM NaCl”
t0“Faba Beans”
Claim · model-written summary
At 40 mM NaCl, chlorophyll content declined significantly.
- Taxon
- Faba BeansVicia fabat0
- Treatment
- salinity of 40 mM NaCle0
- Outcome
- chlorophyll contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll content were significantly reduced by salinity of 40 mM NaCl”
t0“Faba Beans”
Claim · model-written summary
Salinity had a nonsignificant effect on photosynthesis.
- Taxon
- Faba BeansVicia fabat0
- Treatment
- salinity of 40 mM NaCle1
- Outcome
- photosynthesise0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“however, effect on photosynthesis was nonsignificant”
e1“salinity of 40 mM NaCl”
t0“Faba Beans”
Claim · model-written summary
Saline treatments raised the root/shoot ratio because shoots lost more growth than roots.
- Taxon
- Faba BeansVicia fabat0
- Treatment
- saline treatmentse0
- Outcome
- root/shoot ratioe0
- Direction
- Highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher root/shoot ratio was observed in the saline treatments, as shoot growth was reduced more than that of the roots”
t0“Faba Beans”
Claim · model-written summary
Tap root surface area fell 24% under salinity.
- Taxon
- Faba BeansVicia fabat0
- Organ / stage
- tap roote0
- Treatment
- saline treatmentse1
- Outcome
- Surface area of tap roote0
- Direction
- reducede0
- Value
- 24e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Surface area of tap root and lateral roots was reduced by 24 and 48%, respectively”
e1“saline treatments”
t0“Faba Beans”
Claim · model-written summary
Lateral root surface area fell 48% under salinity.
- Taxon
- Faba BeansVicia fabat0
- Organ / stage
- lateral rootse0
- Treatment
- saline treatmentse1
- Outcome
- lateral rootse0
- Direction
- reducede0
- Value
- 48%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Surface area of tap root and lateral roots was reduced by 24 and 48%, respectively”
e1“saline treatments”
t0“Faba Beans”
Claim · model-written summary
Nutrient acquisition differed across leaves, stem, tap roots and lateral roots under salinity.
- Taxon
- Faba BeansVicia fabat0
- Treatment
- salinitye0
- Outcome
- differences in nutrient acquisitione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Considerable differences in nutrient acquisition were observed in plant parts i.e. leaves, stem, tap roots and lateral roots when subjected to salinity”
t0“Faba Beans”
Claim · model-written summary
Sodium and chloride accumulation differed among organs.
- Taxon
- Faba BeansVicia fabat0
- Organ / stage
- different organse0
- Outcome
- accumulation of sodium and chloridee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The accumulation of sodium and chloride differed in different organs”
t0“Faba Beans”
Claim · model-written summary
At 40 mM NaCl, potassium and calcium contents declined except for potassium in laterals and calcium in tap root.
- Taxon
- Faba BeansVicia fabat0
- Treatment
- 40 mM NaCl treatmente0
- Outcome
- Potassium and calcium contentse0
- Direction
- reducede0
- Qualifier
- except K in laterals and Ca in tap roote0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium and calcium contents were reduced in the 40 mM NaCl treatment in all parts except K in laterals and Ca in tap root”
t0“Faba Beans”
Claim · model-written summary
Potassium and calcium reductions were significant at 80 mM NaCl.
- Taxon
- Faba BeansVicia fabat0
- Treatment
- 80 mM NaCl treatmente0
- Outcome
- Potassium and calcium contentse1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but these reductions were significant in the 80 mM NaCl treatment”
e1“Potassium and calcium contents were reduced”
t0“Faba Beans”
Claim · model-written summary
Salinity at 40 mM NaCl adversely affected shoot phosphorus content.
- Taxon
- Faba BeansVicia fabat0
- Treatment
- salinity at 40 mM NaCle0
- Outcome
- Phosphorus content of shoote0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus content of shoot was also adversely affected by salinity at 40 mM NaCl”
t0“Faba Beans”
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