Abstract
The research aimed to evaluate the use of synthetic or natural auxins on the growth of tomato seedlings. The seeds of Solanum lycopersicum Marmande were sown in polystyrene plug plant trays (104 cells). Two doses of natural or synthetic exogenous auxins (200 ppm and 100 ppm) were supplied to the substrate through the irrigation water with an ebb and flow system 3, 11, and 17 days after sowing (05, 11, and 13th BBCH growth stage, respectively). A commercial biostimulant based on Ecklonia maxima extracts (Basfoliar® Kelp SL Compo) was used as a source of natural auxin while 1-naphthaleneacetic acid NAA was used as a synthetic auxin. Seedlings supplied only with water were used as a control. The treatments had significant effects on many morphological and physiological parameters (plant height, stem diameter, plant fresh and dry weight, leaf number and area, stomatal conductance, plant water use, and water use efficiency). Seedlings treated with both doses of exogenous auxin provided via Ecklonia maxima extracts increased their fresh and dry weight by 31% and 37% respectively and were taller and leafier than the control seedlings. The use of NAA had a negative effect on plant height and stem fresh and dry weight but did not alter the other morpho-physiological parameters as compared to the control seedlings. The treatments with auxins from algae extract during nursery growth improved the performance of tomato seedlings but the benefits could be probably ascribed not only to auxins themselves but to the synergic effect of the other organic compounds contained in the product (amino acids, proteins, carbohydrates, and vitamins).
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Claims 8
Claim · model-written summary
The applied auxin treatments significantly affected morphological and physiological parameters.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- The treatmentse0
- Outcome
- morphological and physiological parameterse0
- Comparator
- Seedlings supplied only with watere1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments had significant effects on many morphological and physiological parameters (plant height, stem diameter, plant fresh and dry weight, leaf number and area, stomatal conductance, plant water use, and water use efficiency)”
e1“Seedlings supplied only with water were used as a control”
t0“tomato transplant production”
Claim · model-written summary
Ecklonia maxima extract increased seedling fresh weight by 31% relative to control.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- both doses of exogenous auxin provided via Ecklonia maxima extractse0
- Interactor
- Ecklonia maxima
Ecklonia maximae0other - Outcome
- fresh and dry weighte0
- Direction
- increasede0
- Value
- 31%e0
- Comparator
- control seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedlings treated with both doses of exogenous auxin provided via Ecklonia maxima extracts increased their fresh and dry weight by 31% and 37% respectively and were taller and leafier than the control seedlings”
t0“tomato transplant production”
Claim · model-written summary
Ecklonia maxima extract increased seedling dry weight by 37% relative to control.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- both doses of exogenous auxin provided via Ecklonia maxima extractse0
- Outcome
- dry weighte0
- Direction
- increasede0
- Value
- 37%e0
- Comparator
- control seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedlings treated with both doses of exogenous auxin provided via Ecklonia maxima extracts increased their fresh and dry weight by 31% and 37% respectively and were taller and leafier than the control seedlings”
t0“tomato transplant production”
Claim · model-written summary
Ecklonia maxima extract produced taller, leafier seedlings than control.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- both doses of exogenous auxin provided via Ecklonia maxima extractse0
- Outcome
- taller and leafiere0
- Direction
- tallere0
- Comparator
- control seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedlings treated with both doses of exogenous auxin provided via Ecklonia maxima extracts increased their fresh and dry weight by 31% and 37% respectively and were taller and leafier than the control seedlings”
t0“tomato transplant production”
Claim · model-written summary
NAA negatively affected plant height relative to control.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- NAAe0
- Outcome
- plant heighte0
- Direction
- negative effecte0
- Comparator
- control seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of NAA had a negative effect on plant height and stem fresh and dry weight but did not alter the other morpho-physiological parameters as compared to the control seedlings”
t0“tomato transplant production”
Claim · model-written summary
NAA negatively affected stem fresh and dry weight relative to control.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- NAAe0
- Outcome
- stem fresh and dry weighte0
- Direction
- negative effecte0
- Comparator
- control seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of NAA had a negative effect on plant height and stem fresh and dry weight but did not alter the other morpho-physiological parameters as compared to the control seedlings”
t0“tomato transplant production”
Claim · model-written summary
NAA did not alter other morphophysiological parameters relative to control.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- NAAe0
- Outcome
- other morpho-physiological parameterse0
- Direction
- did not altere0
- Comparator
- control seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NAA had a negative effect on plant height and stem fresh and dry weight but did not alter the other morpho-physiological parameters as compared to the control seedlings”
t0“tomato transplant production”
Claim · model-written summary
The authors interpret algae-extract auxins as improving tomato seedling performance, possibly through other organic compounds in the product.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- auxins from algae extracte0
- Outcome
- performance of tomato seedlingse0
- Qualifier
- synergic effect of the other organic compoundse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments with auxins from algae extract during nursery growth improved the performance of tomato seedlings but the benefits could be probably ascribed not only to auxins themselves but to the synergic effect of the other organic compounds contained in the product (amino acids, proteins, carbohydrates, and vitamins)”
The same questions in other papers
1-naphthaleneacetic acid · growth · Solanum lycopersicum (tomato)Results differ
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- positive
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1 paper in the same direction as this paper
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class · growth · Solanum lycopersicum (tomato)Positive and negative results
42 papers in the same direction as this paper · 10 in the opposite direction
- no effect
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See all 53 papers →botanical · growth · Solanum lycopersicum (tomato)Positive and negative results
202 papers in the same direction as this paper · 87 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
287 papers more in this group
See all 291 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.