Abstract
Soil and water salinity are among the most fatal environmental challenges that threaten agricultural production worldwide. This study investigated the potential impact(s) of soil amendment using composted bagasse and/or foliar application of cyanobacteria-based bio-stimulants (Arthrospira platensis, also known as Spirulina platensis) to combat the harmful effect(s) of using saline water to irrigate barley plants grown in salt-affected soils during 2020/2021 and 2021/2022. Briefly, the dual application of composted bagasse and cyanobacteria-based bio-stimulants significantly improved the soil properties, buffered the exchangeable sodium percentage (ESP), and enhanced the activity of soil enzymes (urease and dehydrogenase). Moreover, both treatments and their combination notably augmented the water relations of barley plants under salinity stress. All treatments significantly decreased stomatal conductance (gs) and relative water content (RWC) but increased the electrolyte leakage (EL) and balanced the contents of Na+ and K+, and their ratio (K+/Na+) of barley leaves under salinity stress compared with those irrigated with fresh water during the 2020/2021 and 2021/2022 seasons. Additionally, composted bagasse and cyanobacteria-based bio-stimulants diminished the oxidative stress in barley plants under salinity stress by improving the activity of antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), and peroxidase (POX). Consequently, the combination of composted bagasse and cyanobacteria extract resulted in superior yield-related traits such as spike length, number of grains per spike, 1000-grain weight, grain yield, straw yield, and harvest index. Collectively, our findings suggest that the integrative application of composted bagasse and cyanobacteria is promising as a sustainable environmental strategiy that can be used to improve soil properties, plant growth, and productivity of not only barley plants but also maybe other cereal crops irrigated with saline water in salt-affected soil.
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Claims 11
Claim · model-written summary
Combined amendments improved soil properties.
- Taxon
- Barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- dual application of composted bagasse and cyanobacteria-based bio-stimulantse0
- Outcome
- soil propertiese0
- Direction
- improvede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the dual application of composted bagasse and cyanobacteria-based bio-stimulants significantly improved the soil properties”
t0“Barley”
Claim · model-written summary
Combined amendments buffered exchangeable sodium percentage.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- exchangeable sodium percentage (ESP)e0
- Direction
- bufferede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“buffered the exchangeable sodium percentage (ESP)”
t0“Barley”
Claim · model-written summary
Combined amendments enhanced soil urease and dehydrogenase activity.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- activity of soil enzymes (urease and dehydrogenase)e0
- Direction
- enhancede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhanced the activity of soil enzymes (urease and dehydrogenase)”
t0“Barley”
Claim · model-written summary
The amendments improved barley water relations under salinity.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- both treatments and their combinatione0
- Outcome
- water relationse0
- Direction
- augmentede0
- Qualifier
- under salinity stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both treatments and their combination notably augmented the water relations of barley plants under salinity stress”
Claim · model-written summary
Treatments decreased stomatal conductance and relative water content compared with fresh-water irrigation.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- All treatmentse0
- Outcome
- stomatal conductance (gs) and relative water content (RWC)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All treatments significantly decreased stomatal conductance (gs) and relative water content (RWC)”
t0“Barley”
Claim · model-written summary
Treatments increased leaf electrolyte leakage under salinity.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Composted Bagasse and/or Cyanobacteria-Based Bio-Stimulantst0
- Outcome
- electrolyte leakage (EL)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the electrolyte leakage (EL)”
t0“Composted Bagasse and/or Cyanobacteria-Based Bio-Stimulants Maintain Barley”
Claim · model-written summary
Treatments balanced barley leaf sodium, potassium and their ratio.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- leavese0
- Outcome
- contents of Na+ and K+, and their ratio (K+/Na+)e0
- Direction
- balancede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“balanced the contents of Na+ and K+, and their ratio (K+/Na+) of barley leaves under salinity stress”
Claim · model-written summary
The amendments improved barley antioxidant enzyme activity under salinity.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- activity of antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), and peroxidase (POX)e0
- Direction
- improvinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improving the activity of antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), and peroxidase (POX)”
t0“Barley”
Claim · model-written summary
The amendments diminished oxidative stress in barley.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- composted bagasse and cyanobacteria-based bio-stimulantse0
- Outcome
- oxidative stresse0
- Direction
- diminishede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“composted bagasse and cyanobacteria-based bio-stimulants diminished the oxidative stress in barley plants under salinity stress”
Claim · model-written summary
The combined amendments produced superior spike length, grain number and grain weight.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- combination of composted bagasse and cyanobacteria extracte0
- Outcome
- spike length, number of grains per spike, 1000-grain weighte0
- Direction
- superiore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combination of composted bagasse and cyanobacteria extract resulted in superior yield-related traits such as spike length, number of grains per spike, 1000-grain weight”
t0“Barley”
Claim · model-written summary
The combined amendments produced superior grain yield, straw yield and harvest index.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- grain yield, straw yield, and harvest indexe0
- Direction
- superiore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“superior yield-related traits such as spike length, number of grains per spike, 1000-grain weight, grain yield, straw yield, and harvest index”
t0“Barley”
The same questions in other papers
fertilization · physiology: oxidative · Hordeum vulgare (barley)Positive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 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.