Abstract
The effect of aluminum and chromium on two barley genotypes differing in Al tolerance was studied in a hydroponic experiment. Al stress decreased plant growth, biomass production, chlorophyll content and photosynthetic efficiency determined as variable to maximum chlorophyll fluorescence ratio (Fv/Fm), net photosynthetic rate (PN), intercellular CO2 concentration (ci), stomatal conductance (gs) and transpiration rate (E) less in an Al-tolerant genotype Gebeina than in an Al-sensitive genotype Shang 70-119. Cr stress also caused marked reduction in growth and photosynthetic traits in barley plants. Higher reduction was observed at pH 4.0 as compared to pH 6.5. Combined stress of Cr and Al, caused further reduction in growth and photosynthetic parameters.
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Claims 6
Claim · model-written summary
Aluminum reduced growth and biomass less in tolerant Gebeina than sensitive Shang 70-119.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Material
- Gebeinae0
- Treatment
- Al stresse0
- Outcome
- plant growth, biomass productione0
- Direction
- decreasede0
- Comparator
- Shang 70-119e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Al stress decreased plant growth, biomass production, chlorophyll content and photosynthetic efficiency determined as variable to maximum chlorophyll fluorescence ratio (Fv/Fm), net photosynthetic rate (PN), intercellular CO2 concentration (ci), stomatal conductance (gs) and transpiration rate (E) less in an Al-tolerant genotype Gebeina than in an Al-sensitive genotype Shang 70-119”
t0“barley cultivars”
Claim · model-written summary
Aluminum reduced chlorophyll content and photosynthetic efficiency less in Gebeina than Shang 70-119.
- Taxon
- barleyHordeum vulgaret0
- Material
- Gebeinae0
- Treatment
- Al stresse0
- Outcome
- chlorophyll content and photosynthetic efficiencye0
- Direction
- decreasede0
- Comparator
- Shang 70-119e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Al stress decreased plant growth, biomass production, chlorophyll content and photosynthetic efficiency determined as variable to maximum chlorophyll fluorescence ratio (Fv/Fm), net photosynthetic rate (PN), intercellular CO2 concentration (ci), stomatal conductance (gs) and transpiration rate (E) less in an Al-tolerant genotype Gebeina than in an Al-sensitive genotype Shang 70-119”
t0“barley cultivars”
Claim · model-written summary
Aluminum reduced gas exchange and transpiration traits less in Gebeina than Shang 70-119.
- Taxon
- barleyHordeum vulgaret0
- Material
- Gebeinae0
- Treatment
- Al stresse0
- Outcome
- net photosynthetic rate (PN), intercellular CO2 concentration (ci), stomatal conductance (gs)e0
- Direction
- decreasede0
- Comparator
- Shang 70-119e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Al stress decreased plant growth, biomass production, chlorophyll content and photosynthetic efficiency determined as variable to maximum chlorophyll fluorescence ratio (Fv/Fm), net photosynthetic rate (PN), intercellular CO2 concentration (ci), stomatal conductance (gs) and transpiration rate (E) less in an Al-tolerant genotype Gebeina than in an Al-sensitive genotype Shang 70-119”
t0“barley cultivars”
Claim · model-written summary
Chromium reduced growth and photosynthetic traits in barley.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- Cr stresse0
- Outcome
- growth and photosynthetic traitse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cr stress also caused marked reduction in growth and photosynthetic traits in barley plants”
Claim · model-written summary
Chromium stress effects were stronger at pH 4.0 than pH 6.5.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher reduction was observed at pH 4.0 as compared to pH 6.5”
t0“barley cultivars”
Claim · model-written summary
Combined chromium and aluminum stress further reduced barley growth and photosynthetic parameters.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- Combined stress of Cr and Ale0
- Outcome
- growth and photosynthetic parameterse0
- Direction
- further reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined stress of Cr and Al, caused further reduction in growth and photosynthetic parameters”
t0“barley cultivars”
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