Abstract
Tomato (L.ycopersicon esculentum Mill.) seedlings were nutritionally conditioned with solutions containing factorial combinations of N at 25, 75, and 225 mg·liter -1 , P at 5, 15, and 45 mg·liter -1 , and K at 25, 75, and 225 mg·liter -1 to determine the effect of nutritional regimes on tomato transplant growth and quality. As N increased from 25 to 225 mg·liter -1 , fresh shoot weight, plant height, stem diameter, leaf number, leaf area, shoot and root dry weights, and total chlorophyll increased. Nitrogen accounted for the major source of variation. Phosphorus effects were significant only in 1988; Pat 45 mg·liter -1 increased fresh shoot weight, plant height, stem diameter, leaf number, and leaf area in comparison to 5 and 15 mg·liter -1 . Potassium did not significantly influence any of the growth variables measured in the study. For quality transplant production, nutrient solutions should contain at least N at 225 mg·liter -1 , P at 45 mg·liter -1 , and K at 25 mg·liter -1 .
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Claims 8
Claim · model-written summary
Increasing N increased shoot weight, height and stem diameter.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- N increased from 25 to 225 mg·liter -1e0
- Outcome
- fresh shoot weight, plant height, stem diametere0
- Direction
- increasede0
- Comparator
- 25e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As N increased from 25 to 225 mg·liter -1 , fresh shoot weight, plant height, stem diameter, leaf number, leaf area, shoot and root dry weights, and total chlorophyll increased”
t0“Tomato”
Claim · model-written summary
Increasing N increased leaf number, leaf area and shoot dry weight.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- N increased from 25 to 225 mg·liter -1e0
- Outcome
- leaf number, leaf area, shoot and root dry weightse0
- Direction
- increasede0
- Comparator
- 25e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As N increased from 25 to 225 mg·liter -1 , fresh shoot weight, plant height, stem diameter, leaf number, leaf area, shoot and root dry weights, and total chlorophyll increased”
t0“Tomato”
Claim · model-written summary
Increasing N increased total chlorophyll.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- N increased from 25 to 225 mg·liter -1e0
- Outcome
- total chlorophylle0
- Direction
- increasede0
- Comparator
- 25e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As N increased from 25 to 225 mg·liter -1 , fresh shoot weight, plant height, stem diameter, leaf number, leaf area, shoot and root dry weights, and total chlorophyll increased”
t0“Tomato”
Claim · model-written summary
Nitrogen accounted for the major source of variation.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- major source of variatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen accounted for the major source of variation”
t0“Tomato”
Claim · model-written summary
Phosphorus at 45 mg·liter -1 increased five transplant growth traits relative to 5 and 15 mg·liter -1 in 1988.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 45 mg·liter -1e0
- Outcome
- fresh shoot weight, plant height, stem diametere0
- Direction
- increasede0
- Qualifier
- 1988e0
- Comparator
- 5 and 15 mg·liter -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus effects were significant only in 1988; Pat 45 mg·liter -1 increased fresh shoot weight, plant height, stem diameter, leaf number, and leaf area in comparison to 5 and 15 mg·liter -1”
t0“Tomato”
Claim · model-written summary
Phosphorus at 45 mg·liter -1 increased leaf number and area relative to 5 and 15 mg·liter -1 in 1988.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 45 mg·liter -1e0
- Outcome
- leaf number, and leaf areae0
- Direction
- increasede0
- Comparator
- 5 and 15 mg·liter -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus effects were significant only in 1988; Pat 45 mg·liter -1 increased fresh shoot weight, plant height, stem diameter, leaf number, and leaf area in comparison to 5 and 15 mg·liter -1”
t0“Tomato”
Claim · model-written summary
Potassium did not significantly influence measured growth variables.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Potassiume0
- Outcome
- growth variablese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium did not significantly influence any of the growth variables measured in the study”
t0“Tomato”
Claim · model-written summary
The authors recommend at least 225 mg·liter -1 N, 45 mg·liter -1 P and 25 mg·liter -1 K for quality transplants.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- nutrient solutions should contain at least N at 225 mg·liter -1 , P at 45 mg·liter -1 , and K at 25 mg·liter -1e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For quality transplant production, nutrient solutions should contain at least N at 225 mg·liter -1 , P at 45 mg·liter -1 , and K at 25 mg·liter -1”
t0“Tomato”
The same questions in other papers
potassium · growth · Solanum lycopersicum (tomato)Results differ
12 papers in the same direction as this paper · 34 in the opposite direction
- positive
- positive
- positive
43 papers more in this group
See all 47 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.