Abstract
Tomato fruits (CV. Grosse Lisse) were grown in sand cultures irrigated with nutrient solutions containing either normal- (120-160 p.p.m. Ca) or low-calcium (40 p.p.m. Ca) levels. Data were collected from the first five trusses, and restricted to fruits arising from the first three flowers of each truss. A greater yield of fruit and fewer fruit affected by blossom-end rot (BER) were produced by the normal than the low calcium treatment. Irrespective of treatment or BER incidence, the calcium concentration was higher in the stem end than the calyx end, and the concentrations of calcium and potassium were greater in trusses 1 and 2 than 4 and 5. BER affected the largest fruit in the normal, but the smallest in the low calcium treatment. Within the same trusses affected fruit had a lower calcium concentration in the stem end than did healthy fruit. For all fruits the ranges in calcium percentage (on dry basis) recorded were : Healthy fruits-stem end 0.086-0.029, calyx end 0.057-0.018 ; affected fruits-stem end 0.072-0.022, calyx end 0.045-0.020. Differences in magnesium and potassium concentrations in stem or calyx ends between healthy and affected fruits were recorded. The K: Ca ratio was higher in affected fruits, but the incidence of BER was unrelated to the Mg : Ca ratio. For both calcium and magnesium the stem end : calyx end concentration ratio was lower in affected than healthy fruit.
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Claims 7
Claim · model-written summary
Normal-calcium nutrient solution gave a greater fruit yield than low calcium in sand-cultured tomato.
- Taxon
- Tomato
Solanum lycopersicume1 - Material
- Grosse Lissee1
- Treatment
- low calcium treatmente0
- Outcome
- yield of fruite0
- Direction
- greatere0
- Comparator
- normale0
- Setting
- sand culturese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greater yield of fruit and fewer fruit affected by blossom-end rot (BER) were produced by the normal than the low calcium treatment”
e1“Tomato fruits (CV. Grosse Lisse) were grown in sand cultures”
Claim · model-written summary
Fewer tomato fruit were affected by blossom-end rot with normal than with low calcium.
- Taxon
- TomatoSolanum lycopersicume1
- Material
- Grosse Lissee1
- Treatment
- low calcium treatmente0
- Outcome
- fruit affected by blossom-end rote0
- Direction
- fewere0
- Comparator
- normale0
- Setting
- sand culturese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A greater yield of fruit and fewer fruit affected by blossom-end rot (BER) were produced by the normal than the low calcium treatment”
e1“Tomato fruits (CV. Grosse Lisse) were grown in sand cultures”
Claim · model-written summary
Calcium concentration was higher in the stem end than the calyx end of tomato fruit regardless of treatment or BER.
- Taxon
- TomatoSolanum lycopersicume1
- Organ / stage
- stem ende2
- Outcome
- calcium concentratione2
- Direction
- highere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Irrespective of treatment or BER incidence, the calcium concentration was higher in the stem end than the calyx end”
e1“Tomato fruits (CV. Grosse Lisse) were grown in sand cultures”
Claim · model-written summary
Within the same trusses, BER-affected fruit had lower stem-end calcium concentration than healthy fruit.
- Taxon
- TomatoSolanum lycopersicume1
- Organ / stage
- stem ende3
- Outcome
- calcium concentratione3
- Direction
- lowere3
- Comparator
- healthy fruite3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Within the same trusses affected fruit had a lower calcium concentration in the stem end than did healthy fruit”
e1“Tomato fruits (CV. Grosse Lisse) were grown in sand cultures”
Claim · model-written summary
The K:Ca ratio was higher in BER-affected tomato fruit.
- Taxon
- TomatoSolanum lycopersicume1
- Outcome
- K: Ca ratioe4
- Direction
- highere4
- Setting
- sand culturese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The K: Ca ratio was higher in affected fruits”
e1“Tomato fruits (CV. Grosse Lisse) were grown in sand cultures”
Claim · model-written summary
BER incidence was unrelated to the Mg:Ca ratio.
- Taxon
- TomatoSolanum lycopersicume1
- Compound
- Mg : Ca ratioe5
- Outcome
- incidence of BERe5
- Direction
- no_changeinferrede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“the incidence of BER was unrelated to the Mg : Ca ratio”
e1“Tomato fruits (CV. Grosse Lisse) were grown in sand cultures”
Claim · model-written summary
The stem end : calyx end concentration ratio of calcium and magnesium was lower in affected than healthy fruit.
- Taxon
- TomatoSolanum lycopersicume1
- Outcome
- stem end : calyx end concentration ratioe6
- Direction
- lowere6
- Comparator
- healthy fruite6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“For both calcium and magnesium the stem end : calyx end concentration ratio was lower in affected than healthy fruit”
e1“Tomato fruits (CV. Grosse Lisse) were grown in sand cultures”
The same questions in other papers
calcium atom · disease · Solanum lycopersicum (tomato)Results differ
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- negative
- negative
- negative
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See all 50 papers →calcium atom · yield · Solanum lycopersicum (tomato)Results differ
66 papers in the same direction as this paper · 11 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- negative
75 papers more in this group
See all 79 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.