Abstract
This study was conducted to examine the ameliorative effects of foliar application of some micro-algal (Chlorella vulgaris and Spirulina platensis) and some medicinal plant leaves (Salix alba, Psidium guajava, and Olea europaea) extracts on Phaseolus vulgaris (Bean) under salinity stress. On a loamy soil, a pots trial was carried out on bean plants grown under salinity stress. Growth characteristics, pigments, osmolytes, total phenol, and antioxidant enzyme contents were determined. S. platensis extract application showed the greatest improvement in shoot length and fresh weight of shoot, which rose 23.5% and 65.1%, respectively compared to the control. The utilized bio-stimulants, particularly S. platensis extracts, remarkably increased the chlorophyll content compared to the control under salinity stress. The photosynthetic pigment, soluble sugars, and soluble protein levels were strengthened by foliar application of bio-stimulant extract. Proline and antioxidant enzyme levels are significantly reduced using algal and plant extracts treatment. These findings support the treatment’s increased contribution to reducing salt stress and their detrimental effects on bean plants.The findings of this study indicate that the use of these biostimulants, especially S. alba, P. guajava, and O. europaea leaf extracts can be considered as an unconventional, ecofriendly, and novel tool in the mitigation of salinity stress.
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Claims 6
Claim · model-written summary
Spirulina extract raised bean shoot length by 23.5%.
Verbatim
e0“S. platensis extract application showed the greatest improvement in shoot length and fresh weight of shoot, which rose 23.5% and 65.1%, respectively compared to the control”
e1“bean plants grown under salinity stress”
Claim · model-written summary
Spirulina extract raised bean shoot fresh weight by 65.1%.
Verbatim
e0“S. platensis extract application showed the greatest improvement in shoot length and fresh weight of shoot, which rose 23.5% and 65.1%, respectively compared to the control”
e1“bean plants grown under salinity stress”
Claim · model-written summary
Biostimulants, especially Spirulina, increased bean chlorophyll under salinity stress.
Verbatim
e0“The utilized bio-stimulants, particularly S. platensis extracts, remarkably increased the chlorophyll content compared to the control under salinity stress”
e1“bean plants grown under salinity stress”
Claim · model-written summary
Foliar biostimulant extract strengthened photosynthetic pigment, soluble sugars, and soluble protein levels.
- Taxon
- bean plantse1
- Treatment
- foliar application of bio-stimulant extracte0
- Outcome
- photosynthetic pigment, soluble sugars, and soluble protein levelse0
- Direction
- strengthenede0
Not reportedComparator
Verbatim
e0“The photosynthetic pigment, soluble sugars, and soluble protein levels were strengthened by foliar application of bio-stimulant extract”
e1“bean plants grown under salinity stress”
Claim · model-written summary
Algal and plant extracts significantly reduced bean proline and antioxidant enzyme levels.
- Taxon
- bean plantse1
- Treatment
- algal and plant extracts treatmente0
- Outcome
- Proline and antioxidant enzyme levelse0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Proline and antioxidant enzyme levels are significantly reduced using algal and plant extracts treatment”
e1“bean plants grown under salinity stress”
Claim · model-written summary
The authors recommend Salix, Psidium, and Olea leaf extracts for mitigating bean salinity stress.
Verbatim
e0“S. alba, P. guajava, and O. europaea leaf extracts can be considered as an unconventional, ecofriendly, and novel tool in the mitigation of salinity stress”
e1“bean plants grown under salinity stress”
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