Abstract
To produce tomato fruits with 6% average Brix without decreasing yield, we investigated the effect of moderate salinity stress on Brix and yield in a single-truss, high-density tomato production system. Because tomato fruit development can be predicted from cumulative temperature, we also assessed cumulative temperature after anthesis as a potential indicator for determining the starting points of salinity stress treatments. When transverse diameters of the first fruit reached 4 cm (i.e., early increase treatment) or the first fruits were at the mature green stage (i.e., late increase treatment), nutrient solution electrical conductivity was slowly increased until the breaker stage from 1.8 dS·m−1 to 6.0 dS·m−1. Plants subjected to the late increase treatment produced tomato fruits with Brix values of 6% without reductions in marketable yield. We also increased nutrient solution electrical conductivity based on cumulative temperature after anthesis and found that early-treated plants produced tomatoes with higher Brix levels and yields than late-treated plants. In summary, moderate salinity stress to avoid excessive stress on plants increased sugar concentrations without decreasing fruit yield and resulted in tomato fruits with average Brix of about 6% when nutrient solution electrical conductivity was increased at a rate of 0.1 dS·m−1·day−1. Because seasonal differences in cumulative temperature influence the appropriate timing of salinity stress applications, further study is needed to optimize year-round growth under moderate salinity stress in single truss, high-density tomato production systems.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Late salinity increase produced tomato fruit Brix of 6%.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- late increase treatmente0
- Outcome
- Brix valuese0
- Value
- 6%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants subjected to the late increase treatment produced tomato fruits with Brix values of 6% without reductions in marketable yield.”
Claim · model-written summary
Late salinity increase did not reduce marketable tomato yield.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- late increase treatmente0
- Outcome
- marketable yielde0
- Direction
- without reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants subjected to the late increase treatment produced tomato fruits with Brix values of 6% without reductions in marketable yield.”
Claim · model-written summary
With conductivity changes based on cumulative temperature, early-treated tomato plants produced higher Brix than late-treated plants.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- early-treated plantse0
- Outcome
- Brix levelse0
- Direction
- highere0
- Qualifier
- based on cumulative temperature after anthesise0
- Comparator
- late-treated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We also increased nutrient solution electrical conductivity based on cumulative temperature after anthesis and found that early-treated plants produced tomatoes with higher Brix levels and yields than late-treated plants.”
Claim · model-written summary
With conductivity changes based on cumulative temperature, early-treated tomato plants produced higher yield than late-treated plants.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- early-treated plantse0
- Outcome
- yieldse0
- Direction
- highere0
- Qualifier
- based on cumulative temperature after anthesise0
- Comparator
- late-treated plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We also increased nutrient solution electrical conductivity based on cumulative temperature after anthesis and found that early-treated plants produced tomatoes with higher Brix levels and yields than late-treated plants.”
Claim · model-written summary
Moderate salinity increased tomato sugar concentration at a conductivity ramp of 0.1 dS·m−1·day−1.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- moderate salinity stresse0
- Outcome
- sugar concentrationse0
- Direction
- increasede0
- Value
- about 6%e0
- Qualifier
- at a rate of 0.1 dS·m−1·day−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moderate salinity stress to avoid excessive stress on plants increased sugar concentrations without decreasing fruit yield and resulted in tomato fruits with average Brix of about 6% when nutrient solution electrical conductivity was increased at a rate of 0.1 dS·m−1·day−1.”
Claim · model-written summary
Moderate salinity did not decrease tomato fruit yield at the stated conductivity ramp.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- moderate salinity stresse0
- Outcome
- fruit yielde0
- Direction
- without decreasinge0
- Qualifier
- at a rate of 0.1 dS·m−1·day−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moderate salinity stress to avoid excessive stress on plants increased sugar concentrations without decreasing fruit yield and resulted in tomato fruits with average Brix of about 6% when nutrient solution electrical conductivity was increased at a rate of 0.1 dS·m−1·day−1.”
Claim · model-written summary
Seasonal differences in cumulative temperature affect appropriate salinity treatment timing.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- salinity stress applicationse0
- Outcome
- appropriate timing of salinity stress applicationse0
- Qualifier
- seasonal differences in cumulative temperaturee0
Not reportedSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seasonal differences in cumulative temperature influence the appropriate timing of salinity stress applications”
t0“Tomato Production System”
The same questions in other papers
salinity · yield · Solanum lycopersicum (tomato)Positive and negative results
17 papers in the same direction as this paper · 141 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
156 papers more in this group
See all 160 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.