Abstract
Optimisation of the mineral composition of the nutrient solution is one of the most important factors affecting crop productivity and quality under hydroponic cultivation. Considering the role of minerals in nutrition and the lack of studies on the K+:Ca++ ratio of nutrient solution on fruit quality, a study was carried out to evaluate the effects of K+:Ca++ ratios on growth, yield, vitamin C content of the fruit and total carbohydrate and phenolic compounds of the ‘Paros’ strawberry under hydroponic conditions. The highest total phenolic compounds, photosynthetic capacity, including leaf area, photosynthetic pigments, stomatal conductance and yield were observed at the 1.4 ratio (K > Ca). Enzymatic (peroxidase, superoxide dismutase and catalase) and non-enzymatic (total phenol, phenolic compounds and anthocyanin) antioxidant capacities were affected significantly by the K+:Ca++ ratio. The highest antioxidant capacity was observed in ratios with K > Ca in the solution. We recommend growers to maintain an appropriate K+:Ca++ ratio in the nutrient solution, as this affects growth parameters, productivity and strawberry quality.
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Claims 7
Claim · model-written summary
Total phenolic compounds were highest at K:Ca 1.4.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- 1.4 ratio (K > Ca)e0
- Outcome
- total phenolic compoundse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
t0“strawberry”
e0“The highest total phenolic compounds, photosynthetic capacity, including leaf area, photosynthetic pigments, stomatal conductance and yield were observed at the 1.4 ratio (K > Ca)”
Claim · model-written summary
Photosynthetic capacity, leaf area, pigments and stomatal conductance were highest at K:Ca 1.4.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- 1.4 ratio (K > Ca)e0
- Outcome
- photosynthetic capacity, including leaf area, photosynthetic pigments, stomatal conductancee0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“The highest total phenolic compounds, photosynthetic capacity, including leaf area, photosynthetic pigments, stomatal conductance and yield were observed at the 1.4 ratio (K > Ca)”
Claim · model-written summary
Strawberry yield was highest at K:Ca 1.4.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- 1.4 ratio (K > Ca)e0
- Outcome
- yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“The highest total phenolic compounds, photosynthetic capacity, including leaf area, photosynthetic pigments, stomatal conductance and yield were observed at the 1.4 ratio (K > Ca)”
Claim · model-written summary
K:Ca ratio significantly affected peroxidase, superoxide dismutase and catalase antioxidant capacities.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- K+:Ca++ ratioe0
- Outcome
- Enzymatic (peroxidase, superoxide dismutase and catalase)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“Enzymatic (peroxidase, superoxide dismutase and catalase) and non-enzymatic (total phenol, phenolic compounds and anthocyanin) antioxidant capacities were affected significantly by the K+:Ca++ ratio”
Claim · model-written summary
K:Ca ratio significantly affected nonenzymatic antioxidant capacities.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- K+:Ca++ ratioe0
- Outcome
- non-enzymatic (total phenol, phenolic compounds and anthocyanin) antioxidant capacitiese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“Enzymatic (peroxidase, superoxide dismutase and catalase) and non-enzymatic (total phenol, phenolic compounds and anthocyanin) antioxidant capacities were affected significantly by the K+:Ca++ ratio”
Claim · model-written summary
Antioxidant capacity was highest when potassium exceeded calcium.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- ratios with K > Cae0
- Outcome
- antioxidant capacitye0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“strawberry”
e0“The highest antioxidant capacity was observed in ratios with K > Ca in the solution”
Claim · model-written summary
Growers were advised to maintain an appropriate nutrient K:Ca ratio.
- Taxon
- strawberryFragaria ×ananassae0
- Outcome
- maintain an appropriate K+:Ca++ ratio in the nutrient solutione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We recommend growers to maintain an appropriate K+:Ca++ ratio in the nutrient solution, as this affects growth parameters, productivity and strawberry quality”
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calcium atom · yield · Fragaria x ananassa (strawberry)Results differ
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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.