Abstract
Salt stress is one of the most chalanging abiotic stresses affecting natural productivity and causing significant croplosses worldwide. A greenhouse experiment was conducted to evaluate the response of two alfalfa cultivars (Bamiand Hamedani) to 6 levels of salinity (0 as control, 25, 50, 75, 100, 125 mM NaCl) at the College of Agriculture,Shiraz University, Shiraz, Iran in 2008. Plant dry weight per pot in both cultivars decreased with increasing salinitylevels. However, Bami as compared to Hamedani, with the lowest Na+ sequestration, produced the greater dry matterweight. Leaf area per pot was significantly affected by salt stress with Bami cultivar showing a higher leaf area thanHamedani. Na+ accumulation also increased by increase in the salinity level in either one of the cultivars; however,Na+ sequestration of Bami as compared to Hamedani, was lower due to Na+ exclusion mechanisms occurring in thiscultivar. Although Cl- accumulation increased with increasing salinity level in either one of the cultivars, Claccumulationwas higher in Hamedani than in the other cultivar. Similar to K+/Na+ ratio, Ca2+/Na+ ratio alsodecreased by an increase in salt stress levels and there were highly significant differences observed between 25 and125 mM of NaCl in either one of the cultivars. There was a strong positive relationship observed between plant drymatter weight and leaf relative water content for both Bami (R2=0.94) and Hamedani (R2=0.96) cultivars under saltstress conditions. All in all, it appears that less adverse effect of salinity on Bami cultivar has made it suitable forgrowth in saline soils as compared to Hamedani in saline areas prevailent in south Iran.
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Claims 10
Claim · model-written summary
Dry weight per pot decreased with increasing salinity in both alfalfa cultivars.
- Taxon
- alfalfa
Medicago sativat0 - Material
- Bamiand Hamedanie0
- Treatment
- increasing salinitye1
- Outcome
- Plant dry weight per pote1
- Direction
- decreasede1
- Comparator
- 0 as controle0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of salt stress on vegetative growth and ion accumulation of two alfalfa (Medicago sativa L.) cultivars.”
e0“A greenhouse experiment was conducted to evaluate the response of two alfalfa cultivars (Bamiand Hamedani) to 6 levels of salinity (0 as control, 25, 50, 75, 100, 125 mM NaCl)”
e1“Plant dry weight per pot in both cultivars decreased with increasing salinitylevels”
Claim · model-written summary
Bami produced greater dry matter weight than Hamedani.
- Taxon
- alfalfaMedicago sativat0
- Material
- Bamie2
- Outcome
- dry matterweighte2
- Direction
- greatere2
- Comparator
- Hamedanie2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of salt stress on vegetative growth and ion accumulation of two alfalfa (Medicago sativa L.) cultivars.”
e2“However, Bami as compared to Hamedani, with the lowest Na+ sequestration, produced the greater dry matterweight”
Claim · model-written summary
Bami had a higher leaf area per pot than Hamedani under salt stress.
- Taxon
- alfalfaMedicago sativat0
- Material
- Bamie3
- Treatment
- salt stresse3
- Outcome
- Leaf area per pote3
- Direction
- highere3
- Comparator
- Hamedanie3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of salt stress on vegetative growth and ion accumulation of two alfalfa (Medicago sativa L.) cultivars.”
e3“Leaf area per pot was significantly affected by salt stress with Bami cultivar showing a higher leaf area thanHamedani”
Claim · model-written summary
Na+ accumulation increased with increasing salinity level in both cultivars.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- increase in the salinity levele4
- Outcome
- Na+ accumulatione4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of salt stress on vegetative growth and ion accumulation of two alfalfa (Medicago sativa L.) cultivars.”
e4“Na+ accumulation also increased by increase in the salinity level in either one of the cultivars”
Claim · model-written summary
Na+ sequestration was lower in Bami than in Hamedani.
- Taxon
- alfalfaMedicago sativat0
- Material
- Bamie5
- Outcome
- Na+ sequestratione5
- Direction
- lowere5
- Comparator
- Hamedanie5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of salt stress on vegetative growth and ion accumulation of two alfalfa (Medicago sativa L.) cultivars.”
e5“however,Na+ sequestration of Bami as compared to Hamedani, was lower due to Na+ exclusion mechanisms occurring in thiscultivar”
Claim · model-written summary
Cl- accumulation was higher in Hamedani than in the other cultivar.
- Taxon
- alfalfaMedicago sativat0
- Material
- Hamedanie6
- Treatment
- increasing salinity levele6
- Outcome
- Cl- accumulatione6
- Direction
- highere6
- Comparator
- the other cultivare6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of salt stress on vegetative growth and ion accumulation of two alfalfa (Medicago sativa L.) cultivars.”
e6“Although Cl- accumulation increased with increasing salinity level in either one of the cultivars, Claccumulationwas higher in Hamedani than in the other cultivar”
Claim · model-written summary
Ca2+/Na+ ratio decreased with increasing salt stress levels, similar to the K+/Na+ ratio.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- an increase in salt stress levelse7
- Outcome
- Ca2+/Na+ ratioe7
- Direction
- decreasede7
- Qualifier
- Similar to K+/Na+ ratioe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of salt stress on vegetative growth and ion accumulation of two alfalfa (Medicago sativa L.) cultivars.”
e7“Similar to K+/Na+ ratio, Ca2+/Na+ ratio alsodecreased by an increase in salt stress levels”
Claim · model-written summary
Bami showed a strong positive relationship between dry matter weight and leaf relative water content under salt stress.
- Taxon
- alfalfaMedicago sativat0
- Material
- Bamie7
- Treatment
- saltstress conditionse7
- Outcome
- plant drymatter weight and leaf relative water contente7
- Direction
- strong positivee7
- Value
- R2=0.94e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of salt stress on vegetative growth and ion accumulation of two alfalfa (Medicago sativa L.) cultivars.”
e7“There was a strong positive relationship observed between plant drymatter weight and leaf relative water content for both Bami (R2=0.94) and Hamedani (R2=0.96) cultivars under saltstress conditions”
Claim · model-written summary
Hamedani showed a strong positive relationship between dry matter weight and leaf relative water content under salt stress.
- Taxon
- alfalfaMedicago sativat0
- Material
- Hamedanie7
- Treatment
- saltstress conditionse7
- Outcome
- plant drymatter weight and leaf relative water contente7
- Direction
- strong positivee7
- Value
- R2=0.96e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of salt stress on vegetative growth and ion accumulation of two alfalfa (Medicago sativa L.) cultivars.”
e7“There was a strong positive relationship observed between plant drymatter weight and leaf relative water content for both Bami (R2=0.94) and Hamedani (R2=0.96) cultivars under saltstress conditions”
Claim · model-written summary
Bami is suitable for growth in saline soils compared with Hamedani, owing to less adverse salinity effect.
- Taxon
- alfalfaMedicago sativat0
- Material
- Bamie5
- Outcome
- suitable forgrowth in saline soilse5
- Comparator
- Hamedanie5
- Setting
- saline areas prevailent in south Irane5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of salt stress on vegetative growth and ion accumulation of two alfalfa (Medicago sativa L.) cultivars.”
e5“it appears that less adverse effect of salinity on Bami cultivar has made it suitable forgrowth in saline soils as compared to Hamedani in saline areas prevailent in south Iran”
The same questions in other papers
salinity · growth · Medicago sativa (alfalfa)Positive and negative results
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See all 95 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.