Abstract
The effect of salinity stress on five cultivars of common bean: Bassbeer, Beladi, Giza 3, HRS 516 and RO21 were evaluated on a sand/peat medium with different salinity levels (0, 50 and 100 mM NaCl) applied 3 weeks after germination for duration of 10 days. Salinity had adverse effects not only on the biomass yield and relative growth rate (RGRt), but also on other morphological parameters such as plant height, number of leaves, root length and shoot/root weight ratio. Photosynthesis, transpiration rate and stomatal conductance were adversely affected in all cultivars. Leaf osmotic potential and leaf turgor varied significantly among cultivars and salt levels. The interaction between cultivars and salt levels for photosynthesis, leaf osmotic potential and leaf turgor was highly significant at day 10 of salt treatment. The Na uptake among the cultivars varied in the order: HRS 516 <RO21 <Giza 3 <Bassbeer <Beladi. This suggests that HRS 516 was most tolerant cultivar because it was the only cultivar with the highest survival rate and no symptoms of salt stress. RO21 was the most susceptible to salinity as it showed severe symptoms of salt stress and very low survival rate. Key words: Salinity stress, Na+ ions, physiology, photosynthesis, water relations, common bean (Phaseolus vulgaris L.).
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Claims 8
Claim · model-written summary
Salinity adversely affected biomass yield and relative growth rate.
- Taxon
- common bean
Phaseolus vulgarist0 - Treatment
- Salinitye0
- Outcome
- biomass yield and relative growth rate (RGRt)e0
- Direction
- adverse effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salinity had adverse effects not only on the biomass yield and relative growth rate (RGRt)”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Salinity adversely affected plant height, leaf number, root length and shoot to root weight ratio.
- Taxon
- common beanPhaseolus vulgarist0
- Treatment
- Salinitye0
- Outcome
- plant height, number of leaves, root length and shoot/root weight ratioe0
- Direction
- adverse effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salinity had adverse effects not only on the biomass yield and relative growth rate (RGRt), but also on other morphological parameters such as plant height, number of leaves, root length and shoot/root weight ratio.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Photosynthesis, transpiration and stomatal conductance were adversely affected in all cultivars.
- Taxon
- common beanPhaseolus vulgarist0
- Outcome
- Photosynthesis, transpiration rate and stomatal conductancee0
- Direction
- adversely affectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Photosynthesis, transpiration rate and stomatal conductance were adversely affected in all cultivars.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Leaf osmotic potential and turgor varied significantly across cultivars and salt levels.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- cultivarse0
- Treatment
- salt levelse0
- Outcome
- Leaf osmotic potential and leaf turgore0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf osmotic potential and leaf turgor varied significantly among cultivars and salt levels.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Cultivar and salt level interactions were highly significant for photosynthesis, leaf osmotic potential and turgor at day 10.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- cultivarse0
- Treatment
- salt levelse0
- Outcome
- photosynthesis, leaf osmotic potential and leaf turgore0
- Qualifier
- day 10 of salt treatmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction between cultivars and salt levels for photosynthesis, leaf osmotic potential and leaf turgor was highly significant at day 10 of salt treatment.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
Sodium uptake increased across cultivars in the order HRS 516, RO21, Giza 3, Bassbeer and Beladi.
- Taxon
- common beanPhaseolus vulgarist0
- Outcome
- Na uptakee0
- Direction
- variede0
- Qualifier
- HRS 516 <RO21 <Giza 3 <Bassbeer <Beladie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Na uptake among the cultivars varied in the order: HRS 516 <RO21 <Giza 3 <Bassbeer <Beladi.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
HRS 516 was judged the most salt tolerant cultivar, with highest survival and no salt stress symptoms.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- HRS 516e0
- Outcome
- highest survival rate and no symptoms of salt stresse0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HRS 516 was most tolerant cultivar because it was the only cultivar with the highest survival rate and no symptoms of salt stress.”
t0“common bean (Phaseolus vulgaris L.)”
Claim · model-written summary
RO21 was the most salt susceptible cultivar, with severe symptoms and very low survival.
- Taxon
- common beanPhaseolus vulgarist0
- Material
- RO21e0
- Outcome
- severe symptoms of salt stress and very low survival ratee0
- Direction
- very lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RO21 was the most susceptible to salinity as it showed severe symptoms of salt stress and very low survival rate.”
t0“common bean (Phaseolus vulgaris L.)”
The same questions in other papers
salinity · growth · Phaseolus vulgaris (common bean)Results differ
63 papers in the same direction as this paper · 7 in the opposite direction
- positive
- negative
- negative
67 papers more in this group
See all 71 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.