Abstract
Water stress is a major problem to fulfill the world food demand and to solve the problem of malnutrition. Different strategies are being used to solve these problems including the fertigation of plants with different biochemical at different growth stages. The present study was conducted for the induction of drought tolerance in field grown wheat for better yield and nutritional quality through foliar spray of α-tocopherol (α-Toc) at start of reproductive stage. Water stress was maintained based on number of irrigation. Three levels of α-Toc 0.001, 0.01 and 0.1 mM were applied as foliar spray. Water stress significantly reduced the biomass production that associated with the decreased photosynthetic pigments, water relation, photosynthetic efficiency, but increased the lipid peroxidation, leaf relative membrane permeability, activities of antioxidant enzymes and the contents of phenolic, flavonoids, α-toc and ASA. Water stress also negatively effected the different yield attributes and seed nutrient quality. Foliar fertigation of wheat plants with α-Toc significantly improved the water stress tolerance of wheat plants in term of improvement in growth and seed yield associated with improved water relations, photosynthetic efficiency, contents of photosynthetic pigments and improvement in antioxidative defence mechanism (enzymatic and non-enzymatic antioxidants). Fertigation of water stressed wheat plants with α-Toc also improved the seed nutritional quality in terms of the contents of seed phenolics, flavonoids, activities of antioxidant enzymes and the content of α-, β- and γ-tocopherols. In conclusion, it was found that fertigation of water stressed wheat plants not only improved the water stress tolerance but also improved the seed yield and nutritional quality that will not only be helpful for the improvement in wheat yield that also be a step to solve the problem of malnutrition through the bio-fertification of α-Toc.
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Claims 11
Claim · model-written summary
Water stress reduced wheat biomass.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- Water stresse0
- Outcome
- biomass productione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress significantly reduced the biomass production”
t0“wheat”
Claim · model-written summary
Water stress decreased photosynthetic pigments, water relations and photosynthetic efficiency.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Water stresse1
- Outcome
- photosynthetic pigments, water relation, photosynthetic efficiencye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased photosynthetic pigments, water relation, photosynthetic efficiency”
t0“wheat”
e1“Water stress significantly reduced the biomass production”
Claim · model-written summary
Water stress increased lipid peroxidation, membrane permeability and antioxidant enzyme activity.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Water stresse1
- Outcome
- lipid peroxidation, leaf relative membrane permeability, activities of antioxidant enzymese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the lipid peroxidation, leaf relative membrane permeability, activities of antioxidant enzymes”
t0“wheat”
e1“Water stress significantly reduced the biomass production”
Claim · model-written summary
Water stress increased phenolics, flavonoids and α-toc content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Water stresse1
- Outcome
- contents of phenolic, flavonoids, α-toce0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the lipid peroxidation, leaf relative membrane permeability, activities of antioxidant enzymes and the contents of phenolic, flavonoids, α-toc and ASA”
t0“wheat”
e1“Water stress significantly reduced the biomass production”
Claim · model-written summary
Water stress increased ASA content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Water stresse1
- Outcome
- ASAe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the lipid peroxidation, leaf relative membrane permeability, activities of antioxidant enzymes and the contents of phenolic, flavonoids, α-toc and ASA”
t0“wheat”
e1“Water stress significantly reduced the biomass production”
Claim · model-written summary
Water stress negatively affected yield attributes and seed nutrient quality.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Water stresse0
- Outcome
- yield attributes and seed nutrient qualitye0
- Direction
- negatively effectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress also negatively effected the different yield attributes and seed nutrient quality.”
t0“wheat”
Claim · model-written summary
α-Toc fertigation improved water-stress tolerance, growth and seed yield.
- Taxon
- wheatTriticum aestivume0
- Treatment
- α-Toce0
- Outcome
- growth and seed yielde0
- Direction
- improvemente0
- Qualifier
- water stress tolerancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar fertigation of wheat plants with α-Toc significantly improved the water stress tolerance of wheat plants in term of improvement in growth and seed yield”
Claim · model-written summary
α-Toc improved water relations, photosynthetic efficiency and photosynthetic pigments.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- α-Toce1
- Outcome
- water relations, photosynthetic efficiency, contents of photosynthetic pigmentse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved water relations, photosynthetic efficiency, contents of photosynthetic pigments”
t0“wheat”
e1“foliar spray of α-tocopherol (α-Toc) at start of reproductive stage”
Claim · model-written summary
α-Toc improved antioxidative defence mechanisms.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- α-Toce1
- Outcome
- antioxidative defence mechanisme0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improvement in antioxidative defence mechanism (enzymatic and non-enzymatic antioxidants)”
t0“wheat”
e1“foliar spray of α-tocopherol (α-Toc) at start of reproductive stage”
Claim · model-written summary
α-Toc improved seed phenolics, flavonoids and antioxidant enzyme activities.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- α-Toce1
- Outcome
- contents of seed phenolics, flavonoids, activities of antioxidant enzymese0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved the seed nutritional quality in terms of the contents of seed phenolics, flavonoids, activities of antioxidant enzymes and the content of α-, β- and γ-tocopherols”
t0“wheat”
e1“foliar spray of α-tocopherol (α-Toc) at start of reproductive stage”
Claim · model-written summary
α-Toc improved seed α-, β- and γ-tocopherol content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- α-Toce1
- Outcome
- content of α-, β- and γ-tocopherolse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved the seed nutritional quality in terms of the contents of seed phenolics, flavonoids, activities of antioxidant enzymes and the content of α-, β- and γ-tocopherols”
t0“wheat”
e1“foliar spray of α-tocopherol (α-Toc) at start of reproductive stage”
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