Abstract
SummaryThe effects of exposing eggplants grown in recirculating nutrient solution to salt stress (6.1 dS m–1) from planting until the beginning of harvesting, on plant growth, yield and macronutrient status was investigated. The salinity was imposed by adding to a basic nutrient solution either additional nutrients at two cation ratios or NaCl. The results showed that the exposure of plants to salinity prior to the beginning of harvesting reduced both vegetative growth during that time and early fruit yield, but the depression of the latter was more severe. The restriction of the early yield was a result of a reduced mean fruit weight due to a lower fruit water content. The detrimental effects of salinity on the mean fruit weight disappeared 25 d after discontinuing the salinity treatments. As a result, the total yield obtained after five months of harvesting was not influenced by exposing the plants to salinity prior to the beginning of harvesting. The salinity source had no specific effect on plant growth. Moreover, the increase of salinity up to 6.1 dS m–1 did not cause any specific nutritional imbalance or toxicity to the plants, irrespective of the salts used to achieve it. It is suggested that the electrical conductivity of the nutrient solution may be raised to 6.1 dS m–1 to control excessive vegetative growth in eggplants grown hydroponically. However, salt treatment should be terminated either at the first harvest, if the total yield is more important than the early yield, or three weeks earlier, if the opposite is true.
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Claims 11
Claim · model-written summary
Preharvest salinity reduced vegetative growth.
- Taxon
- eggplants
Solanum melongenat0 - Treatment
- salinitye0
- Outcome
- vegetative growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the exposure of plants to salinity prior to the beginning of harvesting reduced both vegetative growth during that time and early fruit yield”
t0“eggplants”
Claim · model-written summary
Preharvest salinity reduced early fruit yield more severely than vegetative growth.
- Taxon
- eggplantsSolanum melongenat0
- Treatment
- salinitye0
- Outcome
- early fruit yielde0
- Direction
- reducede0
- Comparator
- vegetative growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the exposure of plants to salinity prior to the beginning of harvesting reduced both vegetative growth during that time and early fruit yield, but the depression of the latter was more severe.”
t0“eggplants”
Claim · model-written summary
Lower mean fruit weight explained the reduced early yield.
- Taxon
- eggplantsSolanum melongenat0
- Organ / stage
- fruite0
- Outcome
- early yielde0
- Qualifier
- reduced mean fruit weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The restriction of the early yield was a result of a reduced mean fruit weight due to a lower fruit water content.”
t0“eggplants”
Claim · model-written summary
Lower fruit water content explained reduced fruit weight.
- Taxon
- eggplantsSolanum melongenat0
- Organ / stage
- fruite0
- Outcome
- mean fruit weighte0
- Qualifier
- lower fruit water contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a reduced mean fruit weight due to a lower fruit water content”
t0“eggplants”
Claim · model-written summary
The salinity effect on mean fruit weight disappeared 25 days after treatment ended.
- Taxon
- eggplantsSolanum melongenat0
- Treatment
- salinity treatmentse0
- Outcome
- mean fruit weighte0
- Direction
- disappearede0
- Value
- 25 de0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The detrimental effects of salinity on the mean fruit weight disappeared 25 d after discontinuing the salinity treatments.”
t0“eggplants”
Claim · model-written summary
Preharvest salinity did not influence total yield after five months of harvest.
- Taxon
- eggplantsSolanum melongenat0
- Treatment
- salinitye0
- Outcome
- total yielde0
- Direction
- not influencede0
- Value
- five monthse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total yield obtained after five months of harvesting was not influenced by exposing the plants to salinity prior to the beginning of harvesting.”
t0“eggplants”
Claim · model-written summary
Salinity source had no specific effect on plant growth.
- Taxon
- eggplantsSolanum melongenat0
- Treatment
- salinity sourcee0
- Outcome
- plant growthe0
- Direction
- no specific effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The salinity source had no specific effect on plant growth.”
t0“eggplants”
Claim · model-written summary
Salinity to 6.1 dS m–1 caused no specific nutritional imbalance or toxicity.
- Taxon
- eggplantsSolanum melongenat0
- Treatment
- increase of salinity up to 6.1 dS m–1e0
- Outcome
- nutritional imbalance or toxicitye0
- Direction
- did not causee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase of salinity up to 6.1 dS m–1 did not cause any specific nutritional imbalance or toxicity to the plants, irrespective of the salts used to achieve it.”
t0“eggplants”
Claim · model-written summary
The authors suggest raising nutrient solution conductivity to control excessive eggplant growth.
- Taxon
- eggplantsSolanum melongenae0
- Treatment
- electrical conductivity of the nutrient solution may be raised to 6.1 dS m–1e0
- Outcome
- control excessive vegetative growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the electrical conductivity of the nutrient solution may be raised to 6.1 dS m–1 to control excessive vegetative growth in eggplants grown hydroponically.”
Claim · model-written summary
The authors recommend ending salt treatment at first harvest if total yield is prioritized.
- Taxon
- eggplantsSolanum melongenat0
- Outcome
- salt treatment should be terminated either at the first harveste0
- Qualifier
- if the total yield is more important than the early yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt treatment should be terminated either at the first harvest, if the total yield is more important than the early yield”
t0“eggplants”
Claim · model-written summary
The authors recommend ending salt treatment three weeks earlier if early yield is prioritized.
- Taxon
- eggplantsSolanum melongenat0
- Outcome
- three weeks earliere0
- Qualifier
- if the opposite is truee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“or three weeks earlier, if the opposite is true.”
t0“eggplants”
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See all 25 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.