Abstract
Salt stress is recognized to negatively influence the fundamental processes in plants regarding growth and yield. The sunflower (Helianthus annuus L.) is considered an important industrial crop because of the good quality of oil it produces that can be used for cooking purposes. The exogenous application of potassium (K) has been reported to enhance abiotic resistance and increase yield in crops. Here, we explored the impact of foliar-applied K at 500 ppm on the physiological and biochemical traits, antioxidant activities, and growth attributes of sunflower grown under salt stress (140 mM NaCl). The findings indicated that salinity stress adversely affected photosynthesis and various gas exchange characteristics. Foliar applied K markedly improved the stomatal conductance, transpiration rate, water use efficiency, CO2 assimilation rate, total soluble proteins, chlorophyll pigments, and upregulated antioxidant system, which are responsible for the healthy growth of sunflower hybrids grown under salinity stress. The shoot and root lengths, plant fresh and dry weights, and achene weight were significantly increased by K application. Overall, foliar applied K significantly improved all of the aforementioned attributes and can attenuate the deleterious influences of salinity stress in sunflower.
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Claims 7
Claim · model-written summary
Salinity stress adversely affected sunflower photosynthesis and gas exchange.
- Taxon
- sunflower
Helianthus annuuse1 - Treatment
- salinity stresse0
- Outcome
- photosynthesis and various gas exchange characteristicse0
- Direction
- adversely affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress adversely affected photosynthesis and various gas exchange characteristics”
e1“sunflower (Helianthus annuus L.)”
Claim · model-written summary
Foliar K improved stomatal conductance, transpiration rate, water use efficiency under salinity stress.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- Foliar applied Ke0
- Outcome
- stomatal conductance, transpiration rate, water use efficiencye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar applied K markedly improved the stomatal conductance, transpiration rate, water use efficiency, CO2 assimilation rate, total soluble proteins, chlorophyll pigments, and upregulated antioxidant system”
e1“sunflower hybrids grown under salinity stress”
Claim · model-written summary
Foliar K improved CO2 assimilation rate, total soluble proteins, chlorophyll pigments under salinity stress.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- Foliar applied Ke0
- Outcome
- CO2 assimilation rate, total soluble proteins, chlorophyll pigmentse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar applied K markedly improved the stomatal conductance, transpiration rate, water use efficiency, CO2 assimilation rate, total soluble proteins, chlorophyll pigments, and upregulated antioxidant system”
e1“sunflower hybrids grown under salinity stress”
Claim · model-written summary
Foliar K improved antioxidant system under salinity stress.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- Foliar applied Ke0
- Outcome
- antioxidant systeme0
- Direction
- upregulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar applied K markedly improved the stomatal conductance, transpiration rate, water use efficiency, CO2 assimilation rate, total soluble proteins, chlorophyll pigments, and upregulated antioxidant system”
e1“sunflower hybrids grown under salinity stress”
Claim · model-written summary
K application significantly increased shoot and root lengths.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- K applicatione0
- Outcome
- shoot and root lengthse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The shoot and root lengths, plant fresh and dry weights, and achene weight were significantly increased by K application”
e1“sunflower (Helianthus annuus L.)”
Claim · model-written summary
K application significantly increased plant fresh and dry weights.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- K applicatione0
- Outcome
- plant fresh and dry weightse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The shoot and root lengths, plant fresh and dry weights, and achene weight were significantly increased by K application”
e1“sunflower (Helianthus annuus L.)”
Claim · model-written summary
K application significantly increased achene weight.
- Taxon
- sunflowerHelianthus annuuse1
- Treatment
- K applicatione0
- Outcome
- achene weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The shoot and root lengths, plant fresh and dry weights, and achene weight were significantly increased by K application”
e1“sunflower (Helianthus annuus L.)”
The same questions in other papers
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See all 8 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.