Abstract
Salinity constitutes a major obstacle in the production and plant growth especially in the Mediterranean region where water quality plays a major role. In the Maghreb more than 30% of water for irrigation is loaded with salt, and it induces the reduction of growth and yield of sensitive varieties. So, research for plants adapted to high levels of salinity becomes an imperative for agricultural production. The bean (Phaseolus vulgaris L.) is an important source of dietary protein in many developing countries but is considered as sensitive species to salinity compared to other vegetables. Molybdenum (Mo) is a trace element in soil, it is involved in the biosynthesis of several enzymes necessary for growth of most biological organisms, plants and animals. We tried in our work to elucidate the effect of different concentrations of molybdenum (M0: 0, M1: 0.1 ppm, M2: 0.2 ppm and M3: 0.4 ppm) by the addition of ammonium molybdate ((NH4) 6Mo7O24.4H2O) on seedlings of Phaseolus vulgaris Var. Djedida subjected to salt stress by providing five NaCl treatments (T0: 0, T1: 3 g/l, T2: 6 g/l, T3: 9 g/l and T4: 12 g/l) in water of irrigation. To highlight the response of these seedlings we conducted an assay of total chlorophyll (Chl (a+b)) by spectrophotometer, and determination of the morphological parameters such as length and biomass of shoots and roots. The bean plants are able to maintain an optimum level of total chlorophyll and their morphological parameters under the condition of mild salt stress (3 g/l) but in the presence of molybdenum, it could alleviate the negative effect of NaCl. We concluded that the presence of molybdenum in concentrations of 0.1 and 0.2 ppm in the culture medium of Phaseolus vulgaris irrigated with saline water increased the chlorophyll content and the plant biomass yield.
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Claims 3
Claim · model-written summary
Bean plants under mild salt stress (3 g/l) maintained an optimum level of total chlorophyll and their morphological parameters.
- Taxon
- Phaseolus vulgaris
Phaseolus vulgarise0 - Treatment
- mild salt stress (3 g/l)e1
- Outcome
- total chlorophylle1
- Direction
- maintain an optimum levele1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedlings of Phaseolus vulgaris Var. Djedida subjected to salt stress by providing five NaCl treatments (T0: 0, T1: 3 g/l, T2: 6 g/l, T3: 9 g/l and T4: 12 g/l) in water of irrigation”
e1“The bean plants are able to maintain an optimum level of total chlorophyll and their morphological parameters under the condition of mild salt stress (3 g/l)”
Claim · model-written summary
Molybdenum alleviated the negative effect of NaCl on Phaseolus vulgaris seedlings.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarist0
- Treatment
- molybdenume2
- Outcome
- negative effect of NaCle2
- Direction
- alleviatee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Irrigation of Phaseolus vulgaris L. Species”
e2“in the presence of molybdenum, it could alleviate the negative effect of NaCl”
Claim · model-written summary
Molybdenum at 0.1 and 0.2 ppm increased chlorophyll content and plant biomass yield of Phaseolus vulgaris irrigated with saline water.
- Taxon
- Phaseolus vulgarisPhaseolus vulgarise3
- Treatment
- molybdenum in concentrations of 0.1 and 0.2 ppme3
- Outcome
- chlorophyll content and the plant biomass yielde3
- Direction
- increasede3
- Qualifier
- irrigated with saline watere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedlings of Phaseolus vulgaris Var. Djedida subjected to salt stress by providing five NaCl treatments (T0: 0, T1: 3 g/l, T2: 6 g/l, T3: 9 g/l and T4: 12 g/l) in water of irrigation”
e3“We concluded that the presence of molybdenum in concentrations of 0.1 and 0.2 ppm in the culture medium of Phaseolus vulgaris irrigated with saline water increased the chlorophyll content and the plant biomass yield”
The same questions in other papers
molybdenum atom · molecular: metabolites · Phaseolus vulgaris (common bean)Positive and negative results
1 in the opposite direction
- no effect
molybdenum atom · physiology: pigments · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- positive
salinity · physiology: pigments · Phaseolus vulgaris (common bean)Results differ
2 papers in the same direction as this paper · 19 in the opposite direction
- negative
- negative
- negative
18 papers more in this group
See all 22 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.