Abstract
ABSTRACT The effect of different potassium (K) rates on yield, fruit quality, and chemical composition of greenhouse-grown melon (Cucumis melo L., cv. Galia) was investigated. The experiment was carried out in a greenhouse similar to that used by farmers in the coastal Mediterranean region of Turkey. Control and three rates of potassium (0, 200, 400, 600 mg L−1) were applied to cv. Galia in a randomized complete block design with 3 replications. Leaf and fruit quality analyses were carried out and yield was determined. Different rates of potassium had no effect on yield. However, fruit number and fruit firmness were higher than the control at the 400 and 600 mg L−1 rates. Total soluble solids were higher than the control at the 600 mg L−1 rate. Average fruit weight was lower than the control at the 600 mg L−1 rate. Treatments did not affect nitrogen (N), phosphorus (P), calcium (Ca), magnesium (Mg), and zinc (Zn) contents of leaves, but leaf K content was higher than the control at all three rates. Iron (Fe) content was lower than the control at the 600 mg L−1 rate and manganese (Mn) content was lower at the 400 and 600 mg L−1rates. The data from our study indicate that 300 mg L−1 K in the root zone was sufficient for optimum yield of greenhouse-grown Galia melons. In terms of total yield, it is not necessary to apply higher rates of K. However, results show that it is possible to improve fruit quality by applying as much as 600 mg L−1 additional K to the plants without a reduction in yield.
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Claims 12
Claim · model-written summary
Potassium rates did not affect yield.
- Taxon
- Melon
.jpg?width=60)
Cucumis melot0 - Treatment
- Different rates of potassiume0
- Outcome
- yielde0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Galia Melon”
e0“Different rates of potassium had no effect on yield”
Claim · model-written summary
Fruit number rose at 400 and 600 mg L−1 relative to control.
- Taxon
- MelonCucumis melot0
- Treatment
- 400 and 600 mg L−1 ratese0
- Outcome
- fruit numbere0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Galia Melon”
e0“fruit number and fruit firmness were higher than the control at the 400 and 600 mg L−1 rates”
Claim · model-written summary
Fruit firmness rose at 400 and 600 mg L−1 relative to control.
- Taxon
- MelonCucumis melot0
- Treatment
- 400 and 600 mg L−1 ratese0
- Outcome
- fruit firmnesse0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Galia Melon”
e0“fruit number and fruit firmness were higher than the control at the 400 and 600 mg L−1 rates”
Claim · model-written summary
Total soluble solids rose at 600 mg L−1.
- Taxon
- MelonCucumis melot0
- Treatment
- 600 mg L−1 ratee0
- Outcome
- Total soluble solidse0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Galia Melon”
e0“Total soluble solids were higher than the control at the 600 mg L−1 rate”
Claim · model-written summary
Average fruit weight fell at 600 mg L−1.
- Taxon
- MelonCucumis melot0
- Treatment
- 600 mg L−1 ratee0
- Outcome
- Average fruit weighte0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Galia Melon”
e0“Average fruit weight was lower than the control at the 600 mg L−1 rate”
Claim · model-written summary
Treatments did not alter leaf nitrogen, phosphorus or calcium.
- Taxon
- MelonCucumis melot0
- Organ / stage
- leavese0
- Treatment
- Treatmentse0
- Outcome
- nitrogen (N), phosphorus (P), calcium (Ca)e0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Galia Melon”
e0“Treatments did not affect nitrogen (N), phosphorus (P), calcium (Ca), magnesium (Mg), and zinc (Zn) contents of leaves”
Claim · model-written summary
Treatments did not alter leaf magnesium or zinc.
- Taxon
- MelonCucumis melot0
- Treatment
- Treatmentse0
- Outcome
- magnesium (Mg), and zinc (Zn) contents of leavese0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Galia Melon”
e0“Treatments did not affect nitrogen (N), phosphorus (P), calcium (Ca), magnesium (Mg), and zinc (Zn) contents of leaves”
Claim · model-written summary
Leaf potassium was higher at all three rates.
- Taxon
- MelonCucumis melot0
- Treatment
- all three ratese0
- Outcome
- leaf K contente0
- Direction
- highere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Galia Melon”
e0“leaf K content was higher than the control at all three rates”
Claim · model-written summary
Leaf iron fell at 600 mg L−1.
- Taxon
- MelonCucumis melot0
- Treatment
- 600 mg L−1 ratee0
- Outcome
- Iron (Fe) contente0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Galia Melon”
e0“Iron (Fe) content was lower than the control at the 600 mg L−1 rate”
Claim · model-written summary
Leaf manganese fell at 400 and 600 mg L−1.
- Taxon
- MelonCucumis melot0
- Treatment
- 400 and 600 mg L−1ratese0
- Outcome
- manganese (Mn) contente0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Galia Melon”
e0“manganese (Mn) content was lower at the 400 and 600 mg L−1rates”
Claim · model-written summary
Authors identify 300 mg L−1 root-zone K as sufficient for optimum yield.
- Taxon
- MelonCucumis melot0
- Outcome
- 300 mg L−1 K in the root zone was sufficient for optimum yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Galia Melon”
e0“300 mg L−1 K in the root zone was sufficient for optimum yield of greenhouse-grown Galia melons”
Claim · model-written summary
Authors suggest up to 600 mg L−1 additional K to improve fruit quality without reducing yield.
- Taxon
- MelonCucumis melot0
- Outcome
- improve fruit quality by applying as much as 600 mg L−1 additional K to the plants without a reduction in yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Galia Melon”
e0“it is possible to improve fruit quality by applying as much as 600 mg L−1 additional K to the plants without a reduction in yield”
The same questions in other papers
potassium · yield · Cucumis melo (muskmelon)Positive and negative results
2 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 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.