Abstract
Abstract Some aspects of the composition of tomato fruit from a 3 2 NK × 2 3 PMgCa factorial nutritional trial have been studied for four seasons. Increasing applications of potassic fertilisers significantly increased the titratable, total and combined acidities, potassium content, refractive index and specific conductivity of the expressed fruit juices. The effects of nitrogen were not so pronounced and, with respect to acidity, potassium content and specific conductivity, were influenced by the level of potassium applied. The potassium content and the acidity of the fruit juices were closely correlated. Nitrogen applications significantly depressed the sugar content of the fruit, but potassium and phosphorus had little effect. Phosphorus reduced the acidity, potassium content and specific conductivity, particularly at low potassium levels. Magnesium and lime had little effect on tomato fruit composition.
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Claims 9
Claim · model-written summary
Increasing potassic fertiliser applications significantly increased the titratable, total and combined acidities of tomato fruit juices.
- Taxon
- tomato fruit
Solanum lycopersicumt1 - Organ / stage
- fruit juicese1
- Treatment
- Increasing applications of potassic fertiliserse1
- Outcome
- titratable, total and combined aciditiese1
- Direction
- significantly increasede1
- Setting
- four seasonse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Increasing applications of potassic fertilisers significantly increased the titratable, total and combined acidities, potassium content, refractive index and specific conductivity of the expressed fruit juices”
e0“have been studied for four seasons”
t1“tomato fruit”
Claim · model-written summary
Increasing potassic fertiliser applications significantly increased potassium content, refractive index and specific conductivity of tomato fruit juices.
- Taxon
- tomato fruitSolanum lycopersicumt1
- Organ / stage
- fruit juicese1
- Treatment
- Increasing applications of potassic fertiliserse1
- Outcome
- potassium content, refractive index and specific conductivitye1
- Direction
- significantly increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Increasing applications of potassic fertilisers significantly increased the titratable, total and combined acidities, potassium content, refractive index and specific conductivity of the expressed fruit juices”
t1“tomato fruit”
Claim · model-written summary
Nitrogen effects on acidity, potassium content and specific conductivity of tomato fruit juice were not so pronounced.
- Taxon
- tomato fruitSolanum lycopersicumt1
- Treatment
- nitrogene2
- Outcome
- acidity, potassium content and specific conductivitye2
- Direction
- not so pronouncede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The effects of nitrogen were not so pronounced and, with respect to acidity, potassium content and specific conductivity, were influenced by the level of potassium applied”
t1“tomato fruit”
Claim · model-written summary
The effects of nitrogen on acidity, potassium content and specific conductivity were influenced by the level of potassium applied.
- Taxon
- tomato fruitSolanum lycopersicumt1
- Treatment
- level of potassium appliede2
- Outcome
- acidity, potassium content and specific conductivitye2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The effects of nitrogen were not so pronounced and, with respect to acidity, potassium content and specific conductivity, were influenced by the level of potassium applied”
t1“tomato fruit”
Claim · model-written summary
Potassium content and acidity of tomato fruit juice were closely correlated.
- Taxon
- tomato fruitSolanum lycopersicumt1
- Compound
- potassium contente3
- Outcome
- acidity of the fruit juicese3
- Direction
- closely correlatede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The potassium content and the acidity of the fruit juices were closely correlated”
t1“tomato fruit”
Claim · model-written summary
Nitrogen applications significantly depressed the sugar content of tomato fruit.
- Taxon
- tomato fruitSolanum lycopersicumt1
- Organ / stage
- fruite4
- Treatment
- Nitrogen applicationse4
- Outcome
- sugar contente4
- Direction
- depressede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Nitrogen applications significantly depressed the sugar content of the fruit, but potassium and phosphorus had little effect”
t1“tomato fruit”
Claim · model-written summary
Potassium and phosphorus had little effect on the sugar content of tomato fruit.
- Taxon
- tomato fruitSolanum lycopersicumt1
- Organ / stage
- fruite4
- Treatment
- potassium and phosphoruse4
- Outcome
- sugar contente4
- Direction
- had little effecte4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Nitrogen applications significantly depressed the sugar content of the fruit, but potassium and phosphorus had little effect”
t1“tomato fruit”
Claim · model-written summary
Phosphorus reduced the acidity, potassium content and specific conductivity of tomato fruit juice, particularly at low potassium levels.
- Taxon
- tomato fruitSolanum lycopersicumt1
- Treatment
- Phosphoruse5
- Outcome
- acidity, potassium content and specific conductivitye5
- Direction
- reducede5
- Qualifier
- particularly at low potassium levelse5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Phosphorus reduced the acidity, potassium content and specific conductivity, particularly at low potassium levels”
t1“tomato fruit”
Claim · model-written summary
Magnesium and lime had little effect on tomato fruit composition.
- Taxon
- tomato fruitSolanum lycopersicumt1
- Treatment
- Magnesium and limee6
- Outcome
- fruit compositione6
- Direction
- had little effecte6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Magnesium and lime had little effect on tomato fruit composition”
t1“tomato fruit”
The same questions in other papers
magnesium atom · quality: general · Solanum lycopersicum (tomato)Positive and negative results
2 in the opposite direction
- positive
- positive
nitrogen · quality: sugar starch · Solanum lycopersicum (tomato)Results differ
6 papers in the same direction as this paper · 24 in the opposite direction
- negative
- positive
- positive
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See all 31 papers →lime · quality: general · Solanum lycopersicum (tomato)Positive and negative results
4 in the opposite direction
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →phosphorus · quality: sugar starch · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 14 in the opposite direction
- positive
- positive
- positive
12 papers more in this group
See all 16 papers →potassium · quality: sugar starch · Solanum lycopersicum (tomato)Positive and negative results
5 papers in the same direction as this paper · 18 in the opposite direction
- positive
- positive
- positive
20 papers more in this group
See all 24 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.