Abstract
SummaryThe hypothesis that water flow into tomato fruits is affected similarly by osmotic potential of the nutrient solution and potential transpiration (shoot environment) via their effects on stem water potential, was tested through experiments carried out in two glasshouses where climate was controlled to maintain a desired potential transpiration rate (normal and depressed, respectively). This climate treatment was factorially combined with a root zone osmotic potential treatment, whereby two values of osmotic potential were compared in each experiment. Data showed that water uptake per unit leaf area was not affected by osmotic potential of the nutrient solution. The hydraulic resistance within the plant, deduced from measurements of leaf and stem water potential, was independent of the transpiration flow and was not affected by the osmotic potential of the nutrient solution. Water import into the fruit was affected by both treatments and was correlated with the water potential gradient between the stem and the fruit. Since fruit osmotic potential was relatively constant at a given concentration of the nutrient solution, the stem water potential appeared to be a good indicator of fruit growth rate.
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Claims 8
Claim · model-written summary
Nutrient-solution osmotic potential did not affect water uptake per unit leaf area.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- osmotic potential of the nutrient solutione0
- Outcome
- water uptake per unit leaf areae0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water uptake per unit leaf area was not affected by osmotic potential of the nutrient solution”
t0“tomato”
Claim · model-written summary
Plant hydraulic resistance was independent of transpiration flow.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- transpiration flowe0
- Outcome
- hydraulic resistance within the plante0
- Direction
- independente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The hydraulic resistance within the plant, deduced from measurements of leaf and stem water potential, was independent of the transpiration flow”
t0“tomato”
Claim · model-written summary
Nutrient-solution osmotic potential did not affect plant hydraulic resistance.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- osmotic potential of the nutrient solutione0
- Outcome
- hydraulic resistancee1
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was not affected by the osmotic potential of the nutrient solution”
e1“The hydraulic resistance within the plant”
t0“tomato”
Claim · model-written summary
Osmotic potential of the nutrient solution affected water import into fruit.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- root zone osmotic potential treatmente1
- Outcome
- Water import into the fruite0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water import into the fruit was affected by both treatments”
e1“root zone osmotic potential treatment”
t0“tomato”
Claim · model-written summary
Potential transpiration treatment affected water import into fruit.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- potential transpiratione1
- Outcome
- Water import into the fruite0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water import into the fruit was affected by both treatments”
e1“potential transpiration (shoot environment)”
t0“tomato”
Claim · model-written summary
Fruit water import correlated with the water potential gradient between stem and fruit.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- fruite0
- Outcome
- Water import into the fruite0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water import into the fruit was affected by both treatments and was correlated with the water potential gradient between the stem and the fruit”
t0“tomato”
Claim · model-written summary
Fruit osmotic potential was relatively constant at a given nutrient solution concentration.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- fruit osmotic potentiale0
- Direction
- relatively constante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fruit osmotic potential was relatively constant at a given concentration of the nutrient solution”
t0“tomato”
Claim · model-written summary
Stem water potential appeared to indicate fruit growth rate.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- steme0
- Outcome
- fruit growth ratee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the stem water potential appeared to be a good indicator of fruit growth rate”
t0“tomato”
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See all 111 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.